technical specifications - new rochelle, ny

TECHNICAL SPECIFICATIONS

Thomas Paine Monument, New Rochelle, NY November 2020

HISTORIC MASONRY CLEANING 040310 - 1

SECTION 040310– HISTORIC MASONRY CLEANING

PART 1 - GENERAL

1.1 DESCRIPTION

A. Work of this Section consists of providing all labor, materials, equipment and services to clean

the marble monument and schist perimeter wall of the Thomas Paine Monument. Work

includes, but is not limited to:

1. Removal of atmospheric soiling, biological growth, paint, iron staining, copper staining

and other surface contaminants using chemical cleaning agents.

B. Related Sections:

1. Section 040342 Historic Marble Restoration

2. Section 040344 Historic Schist Restoration

3. Section 050387 Historic Bronze Sculpture Treatment

C. Related Documents:

1. Thomas Paine Monument Conditions Assessment and Materials Analyses, dated

November 2020 as prepared by Jablonski Building Conservation, Inc.

1.2 REFERENCES

A. Cleaning shall conform to the following publications, except where modified by this Section:

1. Secretary of the Interior, “Secretary of the Interior's Standards for Rehabilitation and

Guidelines for Rehabilitating Historic Buildings”, 1995.

2. National Park Service Technical Preservation Services Division, “Keeping it Clean:

Removing Exterior Dirt, Paint, Stains and Graffiti from Historic Masonry Buildings”,

1988.

3. Brick Industry Association, Technical Note 20, “Cleaning Brickwork”, 2018.

4. Product manufacturer’s printed recommendations

1.3 QUALITY ASSURANCE

A. Cleaning of the marble monument shall be performed by a trained Conservator specialized in

stone conservation and holding Professional Associate or Fellow membership in the American

Institute for Conservation. The Conservator shall have a minimum of ten (10) years of

experience working with historic stone and marble monuments. The Conservator must



demonstrate three (3) projects similar in scope and type to the required work completed in the

last 5 years.

1. Conservation technicians, if used, shall be experienced with the materials and methods

specified, and are familiar with the design requirements. Technicians shall be carefully

supervised to ensure that the work is accomplished to meet or exceed the highest

standards of the trade. Conservator shall maintain a full-time Foreperson who fluently

speaks, reads, and writes English. In acceptance or rejection of the work of this Section,

no allowance will be made for lack of skill on the part of technicians.

B. Cleaning of the schist wall shall be performed by a qualified restoration Contractor with a

minimum of five (5) years of experience working with historic masonry. The Contractor must

demonstrate three (3) projects similar in scope and type to the required work involving facilities

designated as Landmarks by local governments, or buildings listed on the National or State

Register of Historic Places, and completed in the last 5 years.

1. The Contractor shall maintain a steady work crew of skilled mechanics who are

experienced with the materials and methods specified and are familiar with the design

requirements. Mechanics shall have skill and experience of sufficient level to accomplish

the work described. Workers shall be carefully supervised to ensure that the work is

accomplished to meet or exceed the highest standards of the trade. Contractor shall

maintain a full-time Foreperson who fluently speaks, reads, and writes English. In

acceptance or rejection of the work of this Section, no allowance will be made for lack of

skill on the part of mechanics.

a. Mechanics shall have received training and certification where available from the

manufacturer’s representative in the safe and proper use of the equipment

specified.

2. The Contractor shall provide one crew of mechanics for the duration of the project.

Substitutions and additions of work force shall be permitted with the Owner’s

Representative’s consent, so long as there is no adverse effect on quality or performance

of work.

C. The Conservator and Contractor shall replace at no additional cost to the Owner all materials

that are broken, lost, or damaged during the work of this Section.

D. If the Conservator or Contractor fails to follow approved procedures, work may be stopped

immediately.

1.4 SUBMITTALS

A. Qualification Data: Submit qualification data and references for firms and persons specified in

Paragraph 1.3 “Quality Assurance” to demonstrate their capabilities and experience.

B. Product Literature: Submit copies of the manufacturer’s technical data for each product,

including their recommendations for use, and Safety Data Sheets (SDS). Include test reports

and certificates that verify the products’ compliance with the requirements of this Section. One

complete set of product literature and MSDS shall be placed in a 3-ring, loose-leaf binder and



shall be present on the job site at all times for the reference of Owner’s Representative and

Mechanics.

C. Program of Work: Submit a detailed written description of materials, methods, equipment, and

sequence of operations to be used for each phase of the cleaning work including protection of

surrounding materials and Project site.

1. If materials and methods other than those indicated are proposed for any phase of the

cleaning work, include a written description of such materials and methods, including

evidence of successful use on comparable projects, and demonstrations to show their

effectiveness for this Project and worker's ability to use such materials and methods

properly.

D. Containment Plan: Submit a written Containment Plan for the work of this Section describing

methods of protection of adjacent materials, personnel, the public, landscape, and adjacent

structures. Describe method of collection and disposal of chemical runoff in accordance with

applicable Federal, state, and local laws.

1. Provide shop drawings showing method of containment and collection of cleaning waste.

1.5 MOCKUPS

A. Prior to executing work, provide in-place mockups for the Owner’s Representative’s approval.

Resubmit panels until the Owner’s Representative is fully satisfied. Mockups shall be prepared

using the same workmen, methods, and materials that will be employed for the remainder of the

work. Approved mockups shall be retained, undisturbed and suitably marked, as the standard of

work throughout construction. Mockups may be incorporated into the finished work when so

approved by the Owner’s Representative.

B. No mockups shall be made until the methods and locations are approved by the Owner’s

Representative.

C. Owner’s Representative will be present during the creation of all mockups. Do not proceed

with the work unless the Owner’s Representative is present. Notify the Owner’s Representative

no less than forty-eight (48) hours in advance of mockup.

D. Provide protection for adjacent surfaces and collection and containment of cleaning waste

during mockups.

E. Provide the following mockups in locations selected by the Owner’s Representative:

1. For each type of masonry material and soiling present provide one (1) mockup panel

measuring no less than four (4) square feet (2’ x 2’), that is representative of the effect of

the cleaning materials and methods.

F. Evaluation of Mockups:

1. Cleaning mockups shall be evaluated no less than seven (7) days after they have been

performed in order to let the mockup fully dry and to assess any reactions that may have

occurred.



2. Evaluation of all cleaning mockups shall include, but is not limited to, the following:

a. Cleanliness of the test area.

b. Evenness of surface appearance of cleaned area.

c. Any discoloration.

d. Alteration of masonry surface or loss of material.

1.6 DELIVERY, STORAGE AND HANDLING

A. All materials shall be delivered to the job site in original unopened containers bearing

manufacturers’ name and label. Store and handle materials in strict compliance with

manufacturer's instructions.

B. Protect materials from tampering, acts of vandalism, possible injury to workers, the general

public, intrusion of foreign materials, and moisture. All vessels shall have tight fitting covers.

At no time shall vessels containing chemicals be carried to working levels when vessels are

open.

1.7 JOB CONDITIONS

A. Cold weather protection: For any cleaning method requiring water, cleaning shall not begin

until average daily temperatures remain above 40°F (4°C), including overnight. Do not clean if

the temperature of air or masonry drops below 40°F (4°C). Do not clean within seven days of

anticipated freezing temperatures.

B. Surrounding areas shall be protected from contact with chemical cleaning agents. Surrounding

areas shall include, but shall not be limited to, adjacent surfaces and structures, private property

including automobiles, vegetation, and all other surfaces that would be adversely affected by

cleaning chemicals. Contractor vehicle parking and deliveries must be coordinated accordingly.

1. Windborne Chemicals: Protect all surrounding areas and the general public from wind-

carried water or chemical over-spray. Do not clean in winds of sufficient force to blow

cleaning agents beyond the project area.

C. Any material, including adjacent materials, damaged as a result of cleaning operations shall be

repaired or replaced at the Contractor’s expense to the satisfaction of the Owner’s

Representative.

D. The Contractor will use all necessary precautions to protect persons performing the work and

others from harmful effects of the cleaning process. Workers shall be required to wear

protective clothing, goggles, face shields, gloves, and other clothing or equipment in

compliance with SDS, governing Federal, State, and local safety codes and regulations.

E. All environmental restrictions (City, State and Federal), health, and safety code requirements

regarding items in this Section will be observed. This includes complying with all

environmental regulations (City, State and Federal) regarding VOC and waste collection and

disposal.



1. Do not allow runoff from the cleaning process to enter storm and sanitary sewers, or to

contaminate water supplies or enter natural bodies of water.

2. Collect and dispose of cleaning waste in safe and legal way as outlined in the approved

Containment Plan.

F. The Contractor shall provide, erect, and maintain barricades, danger signals and warning signs

as needed.

1.8 COORDINATION

A. Preconstruction Conference: Prior to beginning the work of this Section, convene a meeting

with the Owner’s Representative and all relevant parties to review work requirements, locations

of required mockup areas, and all job conditions and processes. All subcontracting firms

involved with this work shall participate in this meeting.

B. Marble Consolidation as specified in Section 040342 Historic Marble Restoration shall be

completed prior to cleaning marble.

C. The work of Section 050387 Historic Bronze Sculpture Treatment shall be completed prior to

performing the work of this Section.

D. All other work of this Section shall be performed prior to any other masonry restoration work.

Where work must occur out of sequence, allow newly placed cementitious materials such as

composite patching and pointing mortar to cure for no less than twenty-eight (28) days prior to

cleaning.

PART 2 - PRODUCTS

A. The following products have been proven, through on-site comparative testing, to be safe and

effective in removing the soiling types indicated. Provide the following products.

1. Approved Equal: The Contractor may submit alternate, equivalent products for the

approval of the Owner’s Representative.

a. Alternate products must be tested prior to use to demonstrate their effectiveness

and determine whether they will etch or otherwise damage the substrate.

B. Marble - General/Atmospheric Soiling and Biological Growth Remover

1. Enviro Klean ReKlaim Cleaner and Activator, neutralized with Sure Klean Limestone

and Masonry Afterwash as manufactured by PROSOCO, Inc., 3741 Greenway Circle,

Lawrence, KS 66046, (800) 255-4255

C. Marble - Copper Stain Remover (both products may be required)

1. SB2380 Copper Stain Remover Gel, as manufactured by Shore Corporation, 2917 Spruce

Way, Pittsburgh, PA 15201, (412) 471-3330



2. SB2382 CSR Poultice mixed with SB2381 CSR Liquid, for deep-seated stains, as

manufactured by Shore Corporation, 2917 Spruce Way, Pittsburgh, PA 15201, (412) 471-

3330

D. Marble - Paint Removers

1. Light Duty Paint Remover as manufactured by Cathedral Stone Products, Inc., 7266 Park

Circle Drive, Hanover, Maryland, 21076, (410) 782-9150

2. Peel Away 1 neutralized with and Citri-Lize as manufactured by Dumond Chemicals, 83

General Warren Blvd., Suite 190, Malvern, PA 19355, (609) 655-7700

E. Schist - General/Atmospheric Soiling and Biological Growth Remover

1. Safe n’ Easy Ultimate Restoration Cleaner as manufactured by Dumond Chemicals, Inc.,

83 General Warren Blvd., Suite 190, Malvern, PA 19355, (609) 655-7700

F. Schist - Rust Remover

1. CSP Light Duty Rust Remover as manufactured by Cathedral Stone Products, Inc., 7266

Park Circle Drive, Hanover, Maryland, 21076, (410) 782-9150

2.2 TEMPORARY PROTECTION

A. Provide the following, or approved equal, for the protection of adjacent surfaces during

cleaning:

1. Polyethylene plastic sheeting

2. Strippable latex caulking

3. Liquid Strippable Masking Agent:

a. Spray Block 40, manufactured by Edison Coatings.

b. Sure Klean Strippable Masking, manufactured by ProSoCo.

c. ABR Rubber Mask, manufactured by Bonstone Materials Corporation.

d. Or approved equal.

B. All items for temporary protection of surfaces shall be non-staining and completely removable

without damage to the masonry.

2.3 MICELLANEOUS

A. Dumond Laminated Paper as manufactured by Dumond Chemicals, Inc., 83 General Warren

Blvd., Suite 190, Malvern, PA 19355, (609) 655-7700



B. Brushes shall be stiff natural or synthetic bristle brushes. Metallic/wire brushes shall not be

used.

C. Scrapers shall be made of plastic or wood. Metal scrapers shall not be used.

D. Spray Applicator: For chemical cleaning agents, use acid-resistant, airless, low-pressure

sprayers such as those manufactured by the H.D. Hudson Manufacturing Company, 1000

Foreman St SE, Lowell, MI 49331, (312) 644-2830.

E. Pressure Washer: Pressure washers shall be fitted with a 40° fan-shaped nozzle and an in-line

pressure gauge and pressure regulator. Operating pressure shall not exceed 500 psi, as measured

in-line, and equipment shall be capable of providing a flow rate of 5 or more gallons per minute.

1. The spray nozzle shall be kept at minimum 1 foot away from the masonry surface. If

necessary, a dowel may be taped to the wand that projects 1 foot beyond the nozzle to

ensure that the nozzle remains at minimum 1-foot way from the surface.

2. If a pressure washer with a maximum operating pressure of 500 psi cannot be obtained,

the use of a hose and high flow nozzle is acceptable. Acceptable products include:

a. Westward Fireman’s High Flow Nozzle 5” available from Grainger Inc.

www.grainger.com.

b. Nelson Water Nozzle available from Grainger Inc., www.grainger.com.

c. Or approved equal.

F. Water: Water for cleaning shall be potable and free of contaminants that may stain or otherwise

damage the masonry. Flush hydrants well before use. Provide in-line filtration as required to

meet the requirements above.

G. No metal fittings that can corrode or deposit materials on the masonry shall be used.

H. pH Measurement: Paper pH strips which show the full range of acidity/alkalinity from 1 to 14.

PART 3 - EXECUTION

3.1 INSPECTION

A. Examine substrates, supports and conditions under which this work is to be performed and

notify the Owner’s Representative, in writing, of conditions detrimental to the proper

completion of the work. Do not proceed with work until unsatisfactory conditions are

corrected. Beginning work signifies installer’s acceptance of substrates and conditions.

B. Before starting any work of this section, make a complete inspection of all surfaces to be

cleaned and identify areas that will require installation of protection or other special care.



3.2 PREPARATION FOR CLEANING

A. Ensure that the requirements of Paragraph 1.3 Coordination are complete before proceeding

with cleaning work:

1. Marble Consolidation as specified in Section 040342 Historic Masonry Restoration shall

be completed prior to cleaning marble.

2. The work of Section 050387 Historic Bronze Sculpture Treatment shall be completed

prior to performing the work of this Section.

3. Fence removal as specified in Section 050372 Historic Iron Fence Restoration shall be

completed prior to preforming the work of this Section.

4. All other work of this Section shall be performed prior to any other masonry restoration

work.

B. Sequence:

1. General/Atmospheric Soiling and Biological Growth Removal shall be performed prior to

other cleaning work.

2. Following Paint Removal, additional General/Atmospheric Soiling and Biological

Growth Removal and/or Copper Stain removal may be required to remove soiling

concealed below paint.

C. Install protection of adjacent surfaces, property, and people in accordance with the approved

Containment Plan. Protect the restored bronze from contact with the chemical cleaners or rinse

water.

D. Install and test containment system in accordance with the approved Containment Plan.

3.3 GENERAL PROCEDURES

A. Products and procedures employed will comply with the approved mock-up panels.

B. Follow all manufacturers’ instructions regarding protection, mixing, dilution, and application of

each product. If required, dilute cleaning products with water as recommended by testing and in

accordance with the manufacturers’ written instructions.

C. Cleaning using chemical agents shall begin at the bottom of the walls and progress continuously

upward.

D. To avoid streaking, all surfaces immediately below the area being cleaned shall be kept wet and

rinsed free of dripping cleaning agents.

E. Immediately remove all spills or stains on adjacent surfaces and restore affected surfaces at no

expense to the Owner.

F. Re-application of cleaners may be required to achieve a uniform level of clean. Obtain the

approval of the Owner’s Representative prior to reapplication of chemical cleaning agents.



G. Selective stain removal may be necessary in some locations following general soiling removal.

This shall be done with only approved cleaning agents and the approval the Owner’s

Representative.

H. Finished work shall have a uniform appearance, free of stains, streaks, etching, or discoloration,

matching the cleaning level established through mockups.

I. After rinsing and neutralization, as required, cleaned surfaces shall have a neutral pH (pH 7) or

a pH equal to that of the rinse water, as confirmed using pH strips.

1. If the Contractor fails to check the pH level of surfaces after cleaning or fails to rinse

treated surfaces until a neutral pH is reached, work will be stopped immediately.

3.4 MARBLE - GENERAL/ATMOSPHERIC SOILING AND BIOLOGICAL GROWTH

REMOVAL

A. Mix products as follows:

1. ReKlaim: For 5-gallons of prepared solution, add 3 gallons clean water to a plastic

container. Carefully add 1-gallon of ReKlaim Cleaner, followed by 1-gallon of ReKlaim

Activator. Stir thoroughly with a nonmetallic tool. Prepared solutions must be used

immediately.

2. Limestone & Masonry Afterwash: Add 1 part clean water to a plastic container. Carefully

add 1 part Limestone & Masonry Afterwash to the clean water. Never pour water into

cleaner.

B. Working from the bottom to the top, apply prepared ReKlaim solution to a dry surface using a

brush or spray applicator.

C. Gently scrub surface.

D. Leave solution on the surface for 5–20 minutes. If solution begins to dry, reapply.

E. Gently scrub heavily soiled areas.

F. Rinse thoroughly with clean water.

G. Immediately after rinsing ReKlaim from masonry surface, apply the prepared Limestone &

Masonry Afterwash to the wet surface.

H. Let the Afterwash dwell for three to five minutes.

I. Rinse from the bottom of the treated area to the top. Continue rinsing until the pH of treated

surfaces is neutral (pH 7) or equal to the pH of the rinse water.

3.5 MARBLE - COPPER STAIN REMOVAL USING SB2380 GEL

A. Apply SB2380 Gel to a dry surface using a brush.



B. Leave cleaner on the surface for 5–15 minutes. Leaving the cleaner on the surface for more than

15 minutes may lead to difficulty in removal from the surface. In some cases, additional

brushing of the applied cleaner, after the first 5 minutes, may prove to be helpful.

C. When the applied cleaner has turned to a bright blue color, gently rinse to remove product

residue.

D. After rinsing the surface, reapply the cleaner. If the cleaner turns blue, there is additional copper

stain available for removal. Repeat the application procedure until there is no color change in

the applied cleaner.

E. If staining persists after two applications of SB2380 Gel, perform spot cleaning of deep-seated

stains using SB2382 poultice and SB2381 liquid.

F. Thoroughly rinse the treated area. Continue rinsing until the measured pH of treated surfaces is

neutral (pH 7) or equal to the pH of the rinse water.

3.6 MARBLE - COPPER STAIN REMOVAL USING SB2382 POULTICE AND SB2381 LIQUID

A. Mix SB 2382 CSR Poultice with SB 2381 CSR Liquid to a paste-like consistency that will hang

on a vertical surface.

B. Using a broad knife, trowel or other application method, apply a uniform layer of blended SB

2382 CSR Poultice to a thickness of 3/8 to 1/2 inch of product. Application method should

ensure that there are no voids that will cause stains to remain in the surface.

C. Before the poultice dries, cover the surface with a plastic sheeting. Avoid air pockets when

applying the plastic sheet. Air pockets may allow the poultice to dry prematurely.

D. Allow the poultice to remain on the surface for 12 to 48 hours. If the poultice is very damp after

removal of the plastic sheeting, allow the poultice to dry uncovered for several hours prior to

removal.

E. Remove the poultice with plastic or wood scrappers, taking care to avoid marring the surface.

F. Remove as much poultice as possible and rinse with water and scrub brushes. All poultice

residues must be removed to avoid a film appearing on the surface. Continue rinsing until the

measured pH of treated surface is neutral (pH 7) or equal to the pH of the rinse water.

G. Allow the surface to dry and repeat the application where necessary.

3.7 MARBLE - PAINT REMOVAL

A. Ensure that all surfaces to be treated are clean of surface dirt and dry.

B. Apply paint remover to dry surfaces 1/8 to 1/4 inches thick, using corrosion resistant plastic

trowels or non-metallic brushes. Work paint remover well into crevices.

D. Cover Peel Away 1 with Dumond Laminated Paper. Press paper against the paint remover so

that it adheres and air pockets are removed. Cover paper with plastic sheeting. Tape or seal the



edges of the plastic sheeting to the stone.

E. Cover Light Duty Paint Remover with plastic sheeting. Tape or seal the edges of the plastic

sheeting to the stone.

F. Allow the paint remover to dwell for 24 hours.

G. Using a plastic scraper, carefully remove excess chemical and dissolved coatings by lifting,

making sure the substrate is not scraped or gouged.

H. Multiple applications of the paint remover may be required to remove all coatings. If coatings

remain, reapply product as specified above prior to rinsing.

I. Following coating removal, thoroughly rinse treated surfaces using water.

J. Neutralize Peel Away 1 using Citri-Lize, mixed per manufactures’ instructions, and allow to

dwell for 3 to 5 minutes. Rinse until the measured pH of treated surfaces is neutral (pH 7) or

equal to the pH of the rinse water. If pH is high (>7) following rinsing, reapply Citri-Lize and

repeat rinsing.

3.8 SCHIST - GENERAL/ATMOSPHERIC SOILING AND BIOLOGICAL GROWTH

REMOVAL

A. Apply the undiluted Ultimate Stone and Masonry Cleaner to the surface using a brush or spray

application working from the bottom of the surface up.

B. Gently scrub surface.

C. Allow cleaner to dwell for 15 minutes.

D. Gently scrub surface.

E. Rinse thoroughly working from top to bottom. Continue rinsing until the measured pH of

treated surfaces is neutral (pH 7) or equal to the pH of the rinse water.

3.9 SCHIST - RUST REMOVAL

A. Pre-wet the substrate and remove excess water from the surface.

B. Apply a thick, even layer of Light Duty Rust Remover using a brush.

C. Gently scrub surface.

D. Allow product to dwell for 20 minutes. Do not allow product to dry on surface. Reapply product

to maintain a wet surface.

E. Gently scrub surface.



F. Rinse thoroughly with water. Continue rinsing until the measured pH of treated surfaces is

neutral (pH 7) or equal to the pH of the rinse water.

3.10 COMPLETION

A. Rinse adjacent areas and remove any debris or accumulated matter.

B. Remove and legally dispose of all cleaning refuse from the work site.

C. Protect cleaned surfaces from construction related soiling. If, after cleaning is completed, the

cleaned surface becomes dirty as a result of the Contractor's operations, it shall be re-cleaned at

the expense of the Contractor using the foregoing procedures or by using soap and water.

END OF SECTION


HISTORIC MARBLE RESTORATION 040342 - 1

SECTION 040342 – HISTORIC MARBLE RESTORATION

PART 1 - GENERAL

1.1 DESCRIPTION

A. Work of this Section consists of providing all labor, materials, equipment and services to

complete the marble restoration of the Thomas Paine Monument. Work shall include, but is not

limited to:

1. Consolidation of weathered marble

2. Filling of cracks and losses <1/8” wide

3. Composite patching of cracks and losses >1/8” wide

4. Removal and replacement of failed patching

5. Treatment of corroded metal cramps

6. Repointing mortar joints


1. Section 040310 Historic Stone Masonry Cleaning


3. Section 050387 Historic Bronze Sculpture Treatment


1. Thomas Paine Monument Conditions Assessment and Materials Analysis, dated

November 2020, as prepared by Jablonski Building Conservation, Inc.

1.2 REFERENCES

A. Materials and methods shall conform to the "Secretary of the Interior's Standards for

Rehabilitation and Guidelines for Rehabilitating Historic Buildings", 1995.

B. Comply with provisions of the most recent versions of the following codes and standards,

except as otherwise indicated:

1. American Society of Testing and Materials (ASTM):

a. C141 Standard Specification for Hydrated Hydraulic Lime for Structural Purposes

b. C144 Standard Specifications for Aggregate for Masonry Mortar



2. Manufacturer’s printed recommendations


A. All work of this Section shall be done by a trained Conservator specialized in stone

conservation and holding Professional Associate or Fellow membership in the American


experience working with historic stone monuments. The Conservator must demonstrate three

(3) projects similar in scope and type to the required work completed in the last 5 years.

B. Conservation technicians, if used, shall be experienced with the materials and methods


supervised to ensure that the work is accomplished to meet or exceed the highest standards of

the trade. Conservator shall maintain a full-time Foreperson who fluently speaks, reads, and

writes English. In acceptance or rejection of the work of this Section, no allowance will be

made for lack of skill on the part of technicians.

C. The Conservator shall provide one crew of workers for the duration of the project. Substitutions

and additions of work force shall be permitted with the Owner’s Representative’s consent, so

long as there is no adverse effect on quality or performance of work.

D. Conservator shall replace at no additional cost to the Owner all materials that are broken, lost,

or damaged during the work of this Section.

E. If the Conservator fails to follow approved procedures, work may be stopped immediately.

F. Owner’s Representative shall be given regular access to the Conservator’s scaffolding, swing

stage, or work site so that he/she may inspect work being performed.

G. Materials shall be used only at the manufacturer’s recommended temperature tolerances.

H. Repair Appearance Standard: Repaired surfaces are to have a uniform appearance as viewed

from 10 feet away by Owner’s Representative.

1.4 SUBMITTALS

A. Conservator shall submit the following to the Owner’s Representative for approval:

1. Qualification data and references for firms and persons specified in Section 1.3 “Quality

Assurance” to demonstrate their capabilities and experience.

2. Work Plan including detailed descriptions, drawings, and diagrams of how the work of

this Section will be accomplished. Include products to be used, methods, and equipment

for masonry repair and restoration, and methods and procedures for protection of

personnel, the public, and the existing construction.

a. If materials and methods other than those indicated are proposed for any phase of

restoration work, include a written description of such materials and methods,

including evidence of successful use on comparable projects, and demonstrations



to show their effectiveness for this Project and worker's ability to use such

materials and methods properly.

3. Copies of the manufacturer’s technical data for each product indicated or proposed for

use, including recommendations for their application and use. Include test reports and

certificates that verify the product’s compliance with the specification’s requirements.

One complete set of product literature and SDS shall be placed in a 3-ring, loose-leaf

binder and shall be present on the job site at all times for the reference of the Owner’s

Representative.

4. Samples: Conservator shall submit three (3) the following samples to the Owner’s

Representative for approval:

a. Composite patching samples for the existing marble that match the natural color

variations of the stone. More than one mix may be necessary.

b. Pointing mortar in a1/4-inch wide plastic or aluminum channel.

B. Submittal Labels: Clearly label all samples to include the project name and contract number, the

product name, manufacturer name, and any other information relevant to identification of and

differentiation between samples including production codes, batch numbers, and color or

formula numbers.

C. If alternate methods and materials to those specified are proposed for any phase of the work,

provide written description. Provide evidence of successful use on comparable projects and

demonstrate its effectiveness for use on this project.

1.5 MOCKUPS:



by the Conservator using the same crew, methods, and materials that will be employed for the

remainder of the work. Approved mockups shall be retained, undisturbed and suitably marked,

as the standard of work throughout construction. Mockups may be incorporated into the finished

work when so approved by the Owner’s Representative.


Representative.



no less than forty-eight (48) hours in advance of masonry restoration mockup.

D. Provide protection for adjacent surfaces during the mockup phase.


1. Filling of two (2) small cracks around the shallow spalls

2. One (1) crack repair by patching



3. One (1) patch repair

4. Two (2) linear feet of joint repointing.

1.6 JOB CONDITIONS

A. All repair materials shall be used only within the manufacturer’s recommended temperature

tolerances or as indicated below, whichever is more conservative.

B. Cold Weather Requirements: Work involving mortar or composite patching may only be

performed as long as the temperature remains above 40° Fahrenheit. If in any given 24 hour

period the temperature drops or is expected to drop below 40° Fahrenheit at any time, work will

not recommence until a constant temperature of 40° Fahrenheit or higher is projected for a

minimum period of 72 hours. Once stopped for reason of temperature, work will recommence

only upon approval of the Owner’s Representative.

C. Hot Weather Requirements: Protect mortar and composite patching when temperature and

humidity conditions produce excessive evaporation of water from mortar and patching

materials. Provide artificial shade and wind breaks and use cooled materials as necessary to

minimize evaporation. Mortar and composite patching work shall be protected during hot, dry

weather from premature drying or rapid curing by the use of dampened fabric coverings or

controlled misting with water as required to keep mortar moist for seventy-two (72) hours

following final tooling. Do not apply mortar or patching to substrates with temperatures of 90°

Fahrenheit and above unless otherwise indicated.


A. Deliver materials to project site in manufacturer's original and unopened containers, labeled

with manufacturer's name and type of products.

B. Store materials off the ground and in accordance with manufacturer’s instructions to prevent

contamination by foreign materials. Maintain packaged materials in a clean, dry state protected

against weather, traffic, and foreign materials.

1. Do not use cementitious materials that have become damp.

C. Protect materials from tampering, acts of vandalism, and possible injury to workers or the

general public.

1.8 COORDINATION


with the Owner’s Representative and all relevant parties to review work requirements and all

job conditions and processes. All subcontracting firms involved with this work shall participate

in this meeting.

B. Coordinate work of all other trades related to the successful completion of this work.



C. Bronze Restoration (Section 050387) shall be completed prior to the work of this Section being

performed.

D. Marble Consolidation work of this Section shall be completed prior to Masonry Cleaning

(Section 040310) being performed.

E. Masonry Cleaning (Section 040310) shall be completed prior to the Crack Repair, Patching, and

Repointing work of this Section being performed.

1.9 PROTECTION AND SCAFFOLDING

A. The Conservator shall take extreme care in protecting the surrounding materials, buildings,

vehicles, and pedestrians. It is the Conservator’s responsibility to ensure that protective

measures are in place and are adequate for the work being performed.

B. Protect adjacent masonry and other work from mortar and adhesive drippings or other damage.

Immediately remove misplaced mortar or adhesive.

C. Scaffold work required to accomplish the work of this Section shall be the responsibility of the

Conservator and shall be made available to all required trades and the Owner’s Representative

without charge. All scaffolding, staging and appurtenances will be adequately and safely

maintained, and shall comply, in total, to the requirements of the Safety and Health Regulations

for Construction, and any and all other government agencies having jurisdiction. The most

stringent requirements shall govern.

1. Scaffolding shall be free standing and shall not make contact with the monument, fence,

or masonry retaining wall.

2. Any damage made to the structure by the scaffold(s) will be repaired by the Conservator

to the satisfaction of the Owner’s Representative at no cost to the Owner.

PART 2 - PRODUCTS

2.1 MARBLE CONSOLIDANT

A. Conservare HCT followed by HCT Finishing Rinse, as manufactured by PROSOCO, Inc., 3741

Greenway Circle, Lawrence, KS 66046, (800) 255-4255

B. Or approved equal.

2.2 SMALL CRACK REPAIR

A. Injection Grouts

1. Ecologic Injection Grout Type 1, as manufactured by LimeWorks.us, 3145 State Road,

Telford, PA 18969, (215) 536-6706



2. Heritage Dispersed Hydrated Lime – Injection Mortar, as manufactured by U.S. Heritage

Group 3516 North Kostner Chicago, IL 60641, (773) 286-2100.

3. Jahn M32 Micro Injection Grout, as manufactured by Cathedral Stone Products, Inc. 7266

Park Circle Drive, Hanover, MD 21076 (800 )684-0901.

a. Only Jahn certified installers may install Jahn materials.

4. Pump-X 53iE Injection Grout as manufactured by Edison Coatings 3 Northwest Drive

Plainville, CT 06062 (860)747-2220.

B. Fine-Textured Crack Filler

1. 400 Series PHL C70 Crack Filler, as manufactured by VoidSpan Technologies, LLC, 60

Washington St, Salem, MA 01970, (800) 966-8643.

2. Or approved equal

C. Or approved equal.

2.3 COMPOSITE PATCHING

A. Provide composite patching material that is custom color-matched to the existing marble.

Multiple colors may be required.

B. Acceptable products include:

1. St. Astier Lithomex, as manufactured by LimeWorks.us, 3145 State Road, Telford, PA

18969, (215) 536-6706.

2. Heritage MT15 Marble Travertine Mortar as manufactured by U.S. Heritage Group 3516

North Kostner Chicago, IL 60641, (773) 286-2100.

3. Jahn M120 Marble Repair Mortar as distributed by Cathedral Stone Products, Inc. 7266

Park Circle Drive, Hanover, MD 21076, (800) 684-0901.

a. Only certified installers may purchase and install Jahn Repair Mortar.

4. Custom System 45 Type GR as manufactured by Edison Coatings, 3 Northwest Drive,

Plainville, CT 06062 (800)341-6621.

5. Or approved equal.

2.4 RUST CONVERTOR

A. Apply a rust-converting coating to all abandoned anchors or other ferrous materials that are not

being removed, but which were exposed during this work.




1. Rust-oleum Rust Reformer, as manufactured by Rust-oleum 11 Hawthorn Parkway,

Vernon Hills, IL 60061, (800) 481-4785.


2.5 REPOINTING MORTAR

A. The repointing mortar shall be a natural hydraulic lime and sand mortar.

B. Acceptable products include

1. Ecologic Mortar, in DGM SCG Non-pigmented, Butter Joint grade, as manufactured by

LimeWorks.us, 3145 State Road, Telford, PA 18969, (215) 536-6706


2.6 TOOLS

A. Chisels shall be narrower than the joints in which they are used.

B. Brushes shall be stiff natural or plastic bristle brushes. No metallic brushes shall be used.

C. Fine tools like dental picks and micro-spatulas.

2.7 OTHER MATERIALS

A. Masking Tape: Non-staining, non-absorbent material compatible with pointing mortar, joint

primers, sealants, and surface adjacent to joints that will easily come off entirely, including

adhesive.

B. Grout Injection Implements: Provide syringes or other implements to inject grout into cracks.

C. Low-pressure sprayer with corrosion resistant fittings for applying consolidation chemicals.

PART 3 - EXECUTION

3.1 INSPECTION




corrected. Beginning work signifies Conservator’s acceptance of substrates and conditions.

B. Review the amount and extent of work to be completed with the or Owner’s Representative

prior to the execution of the work.



3.2 EXPOSED FERROUS METALS

A. Apply a rust-inhibiting coating to all abandoned anchors or other ferrous materials that are not

being removed, but which were exposed during this work.

1. Remove corrosion and loose coatings and prepare metal surfaces according to coating

manufacturer’s written instructions prior to application.

2. Protect adjacent work from drips or splatter.

3.3 PRE-CONSOLIDATION

A. Consolidate marble before cleaning and the repairs are executed. The purpose of the

consolidation is to prevent excessive marble loss during the cleaning process.

B. Application Procedure:

1. Use as packaged. Do not dilute or alter. Stir or mix well before use. Following treatment,

do not return used material to its original container.

2. Using low-pressure spray equipment, apply HCT to the point of rejection.

3. Allow the treatment to be absorbed for 30 minutes or until surface is visibly dry.

4. Repeat steps 1 and 2 until three saturating applications have been completed.

5. Allow surfaces treated with HCT to dry for 30 minutes or until surface is visibly dry. If

necessary, drying time may be extended overnight without adverse effects.

6. After the treated surface is thoroughly dry, apply HCT Finishing Rinse to the point of

rejection.

7. Allow treated surfaces to dry for 24 hours before cleaning as per Specification 040310

Masonry Cleaning.

3.4 SMALL CRACK REPAIR

A. Cracks larger than hairline, but narrower than 3/16 inches shall be filled with injectable grout or

fine-textured filler designed for small cracks (VoidSpan PHLc70 Crack Filler).

B. Carefully clean the cracks of biological growth, debris, and failed patching material. The use of

power tools is not permitted for this work. Removal shall be done manually. Dental picks and

other fine tools may be necessary.

C. Flush cracks with clean water.

D. Grout Injection.

1. Preparation:



a. Despite what is written in the manufacturer’s instructions, do not drill ports.

Drilling ports will result in the loss of material and inscription.

b. Seal the front of the crack with removable non-staining clay, leaving small

openings to receive the grout injection needle.

2. Mixing:

a. No more material than can be used in 30 minutes shall be mixed at any one time.

Material that has exceeded its pot life shall be discarded.

b. Follow manufacturer’s specification for mix ratios and instructions. Mix for a

minimum of three (3) minutes.

3. Injection Procedure:

a. Moisten the interior of the crack immediately prior to injection by flushing with

clean water. Repeat this step if the surface becomes dry before grout is injected.

b. Inject grout into lowest opening and continue to fill until it flows freely from this

opening and other ports at the same level. Seal ports as indicated until the crack is

filled. Clean up overflow immediately.

c. The repaired crack shall be flush with the face of the masonry work. All entry

ports and crack surfaces shall be subsequently patched with approved composite

patching material to match the color, texture, profile and level of surrounding clean

masonry.

E. Fine-Textured Filler

1. Preparation

a. Immediately prior to filling, dampen contact surfaces to a completely saturated

condition but avoid leaving standing water on the adjacent surfaces and within the

crack to be filled.

2. Mixing

a. Follow manufacturer’s specification for mix ratios and instructions. Hand mix for

1 to 2 minutes, correcting with either water or powder to achieve paste

consistency. To prepare colored fillers, alkali-stable pigments may be added to the

dry powder at a maximum of 2% by weight.

b. Working Time: Up to 60 minutes; do not re-temper after 60 minutes.

3. Procedure:

a. Place the prepared material using traditional pointing methods but with small tools.

Gently push the crack filler into the crack using successive lifts.

b. Do not attempt to push the material into an overly dry crack.



4. Clean-up excess material and any mortar smears using a damp sponge or brushes.

3.5 COMPOSITE PATCHING

A. Repair holes, wide cracks, voids, and failed patches with new patching material colored and

tooled to match existing adjacent material.

B. Preparing Void:

1. Completely remove all unsound material and failing and inappropriate patching material.

2. Cut or chisel void to a minimum depth of 1/2 inch. Void must be prepared with squared

sides.

3. Clean all surfaces to be patched of all debris, dust, grease, or other contaminants.

C. Mix patching material per manufacturer’s written instructions.

D. Pre-dampen masonry surfaces to receive patching for a minimum of twenty (20) minutes prior

to mortar placement. Masonry surfaces should be damp but free of excess standing water at

time of mortar placement.

E. Install patching material per manufacturer’s written instructions.

1. Do not feather the edges of composite patching repairs. Maintain manufacturer’s

minimum repair depth.

2. If installation in lifts is required (e.g. to fill deep voids), mechanically remove 1/16 inch of

material from preceding lift and dampen before applying additional patching material.

3. Build up material beyond the level of the adjacent surface.

F. After achieving initial set, tool patching material until the desired profile is reached.

G. Follow patching material manufacturer’s instructions for curing.

1. Periodically mist patching repairs using clean water for at least a 72-hour period. Mist

several times a day. Hot, dry conditions may require misting every 30 to 60 minutes.

2. Plastic sheeting may be used to slow the evaporation of water or protect repairs from rain.

Use of plastic sheeting does not relieve the Conservator of following manufacturer’s

curing procedures.

H. Repaired areas shall match the color, finish, tooling and texture of the existing adjacent masonry

as closely as possible.

3.6 REPOINTING

A. Mortar Removal



1. Manually rake joints clean to a depth equal to two and one-half (2-1/2) times the joint

width, or to sound mortar, whichever is deeper. Please note: There may not be any

bedding mortar beyond the pointing mortar.

2. Expose masonry for contact with pointing mortars or sealant. Brush, vacuum, or flush

joints to remove all dirt and loose debris.

3. Power-operated saws and grinders will NOT be permitted for use on the joints. Only

chisels, mallets, or hand saws will be permitted. The diameter of the hand tools shall be

narrower than the original joint width.

4. Do not break or mar edges of masonry units or widen joints.

B. Mortar Mixing

1. Thoroughly mix mortar in quantities needed for immediate use. Add approximately half

the required water and mix mortar for a minimum of five (5) minutes, and then slowly add

water as needed to reach the desired working consistency.

2. Add only clean, potable water at the project site. Do not add sand, stone, cement, lime,

bonding agents, color admixtures, set accelerators, plasticizers, air entraining admixtures

or other materials unless specifically authorized in writing from the manufacturer.

3. Use mortar within 1/2-hour of mixing, after which unused mortar shall be discarded. Do

not re-temper mortars which have begun to set.

C. Pointing

1. Pre-dampen masonry surfaces to receive repointing mortar for a minimum of twenty (20)

minutes prior to mortar placement. Masonry surfaces should be damp but free of excess

standing water at time of mortar placement.

2. Fill mortar joints completely. Apply the mortar in successive lifts, compacting each layer

3. Immediately tool filled joint flush to the surface with a flat profile.

4. Remove excess mortar and smears using a stiff natural bristle brush and clean water

before it has set.

5. Wet-cure tooled joints as required by lightly misting with clean water periodically for a

minimum of three (3) days following installation. Misting should be performed every hour

or two on the first day, as required to maintain the mortar in a damp condition, and this

may be reduced to every three or four hours on subsequent days.

3.7 COMPLETION

A. Upon completion of work, clean all surfaces of any debris, mortar, adhesive, construction

materials, etc.

B. Protect new work against damage from subsequent work.



C. Any defective or failed work shall be repaired or replaced using approved procedures.

END OF SECTION


HISTORIC SCHIST RESTORATION 040344 - 1

SECTION 040344 –HISTORIC SCHIST RESTORATION

PART 1 - GENERAL

1.1 DESCRIPTION

A. Work of this Section consists of providing all labor, materials, equipment and services to remove

and reset existing stone masonry wall of the Thomas Paine Monument to match the original.

Work includes, but is not limited to:

1. Removal of existing planting and excavation of soil.

2. Documentation of existing stone masonry

3. Removal of existing stone masonry

4. Storage of removed stone masonry

5. Dutchman repair of removed stone masonry

6. Resetting removed stone masonry




3. Section 050372 Historic Iron Fence Restoration


1. Thomas Paine Conditions Assessment and Materials Analyses, dated November 2020, as

prepared by Jablonski Building Conservation, Inc.

1.2 REFERENCES

A. ASTM

1. C144 Standard Specifications for Aggregate for Masonry Mortar

2. C150 Standard Specification for Portland Cement

3. C207 Standard Specification for Hydrated Lime for Masonry Purposes

4. C270 Standard Specification for Mortar for Unit Masonry

5. C615 Standard Specification for Granite Dimension Stone



6. C979 Standard Specification for Pigments for Integrally Colored Concrete

B. Manufacturer’s printed recommendations


A. Contractor: All work of this Section shall be done by a qualified restoration Contractor with a

minimum of five (5) years of experience working with historic masonry. The Contractor must

demonstrate three (3) projects similar in scope and type to the required work involving facilities

designated as Landmarks by local governments, or buildings listed on the National or State

Register of Historic Places, and completed in the last 5 years

B. Conservator: The Contractor shall retain the services of a qualified Conservator at their own

expense. The Conservator shall supervise the work of the Contractor to ensure conformance with

best practices in the conservation of historic monuments. The Conservator shall be specialized in

stone conservation, have a minimum of ten (10) years of experience working with historic stone

monuments, and hold Professional Associate or Fellow membership in the American Institute for

Conservation.

C. Mechanics: The Contractor shall maintain a steady work crew consisting of skilled mechanics

who are experienced with the materials and methods specified and are familiar with the design

requirements. Mechanics shall have skill and experience of sufficient level to accomplish the

work described. Workers shall be carefully supervised to ensure that the work is accomplished to

meet or exceed the highest standards of the trade. Contractor shall maintain a full-time

Foreperson who fluently speaks, reads, and writes English. In acceptance or rejection of the

work of this Section, no allowance will be made for lack of skill on the part of mechanics.


Substitutions and additions of work force shall be permitted with the Preservation

Consultant’s or Owner’s Representative’s consent, so long as there is no adverse effect

on quality or performance of work.

D. The Contractor shall repair or replace at no additional expense to the Owner and to the

satisfaction of the Owner or Owner’s Representative all broken, lost, or damaged materials

resulting from the work of this Section.

1.4 SUBMITTALS


Paragraph 1.3 Quality Assurance to demonstrate their capabilities and experience.

B. Product Literature: Submit copies of the manufacturer’s technical data for each product

including their recommendations for installation and use and Safety Data Sheets (SDS). Include

test reports and certificates that verify the products’ compliance with the specification’s

requirements. One complete set of product literature and SDS shall be placed in a 3-ring, loose-

leaf binder and shall be present on the job site at all times for the reference of the Owner’s

Representative and mechanics.



C. Program of Work: Prepare a written, detailed description of materials, methods, equipment, and

sequence of operations to be used for each phase of the work of this Section including protection

of surrounding materials and project site for the approval of the Owner’s Representative.

1. Describe the methods for documenting the original masonry layout and collecting data

points and plumb lines for re-installation of masonry. Include method for labeling the

stone and a storage plan for all stone that is to be removed and reinstalled.

2. If materials and methods other than those indicated are proposed for any phase of

restoration work, add to the Program of Work a written description of such materials and

methods, including evidence of successful use on comparable projects, and

demonstrations to show their effectiveness for this Project and worker's ability to use

such materials and methods properly.

D. Documentation: Provide copies of documentation of existing masonry showing the location of

units to be removed for reinstallation and labels assigned to each unit.

E. Samples:

1. Clearly label all samples to include the project name and contract number, the product

name, manufacturer name, and any other information relevant to identification of and

differentiation between samples including model numbers, production codes, batch

numbers, and color or formula numbers.

2. Submit three (3) sets of the following to the or Owner’s Representative for approval:

a. Cured mortar sample set in 1/2” wide aluminum or plastic channel and measuring

approximately 6 inches long. Submit with sample of mortar aggregate (not less

than 50 grams) and precise measurements of ingredients, proportions, gradations,

and sources of aggregate from which each sample was made.

b. Replacement stone sample measuring not less 36 inches square (e.g. 6 x 6 in.) at its

face and any thickness. Sample shall be representative of the color, veining,

texture, and surface finish to be supplied in completed work. Note: It may be

necessary to submit multiple samples representing the natural range of variation of

the stone.

c. Composite patching sample(s) (if required) for each variation in color.

3. Provide samples of any proposed materials not listed above at the request of the Owner’s

Representative.

1.5 MOCKUPS



using the same workmen, methods, and materials that will be employed for the remainder of the

work. Approved mockups shall be retained, undisturbed and suitably marked, as the standard of

work throughout construction. Mockups may be incorporated into the finished work when so





Representative.

C. Owner’s Representative will be present during the creation of all mockups. Do not proceed with

the work unless the Owner’s Representative is present. Notify the Owner’s Representative no

less than forty-eight (48) hours in advance of mockup.

D. Provide protection for adjacent surfaces during mockups.


1. Masonry Removal: Remove approximately 16 square feet (4’x4’ section) of stone

masonry. Demonstrate techniques for removing the masonry without damaging the

surrounding masonry and materials scheduled to remain.

2. Masonry Resetting: Reset approximately 16 square feet (4’x4’ section) of stone masonry.

Install new accessories including pins, anchors, and flashing in a manner demonstrating

their final installation on the structure. Set masonry units in the specified mortar with

bed, cross or vertical, and collar joints completely filled. Point and clean work as required

to bring to a finished state.

3. Dutchman Installation: Install one dutchman repair. Demonstrate techniques for

removing old patches or unsound stone and installing the dutchman.


A. Materials shall be delivered to site in manufacturer’s original and unopened containers and

packaging.

B. Store materials in a clean, dry state protected against weather, traffic, and foreign materials.

C. See Paragraph 3.4 Storage for storage of removed masonry units.

1.7 JOB CONDITIONS

A. Take extreme care in protecting the adjacent monument, materials, buildings, vehicles, and

pedestrians. The Contractor is responsible for ensuring that protective measures are in place and

are adequate for the work being performed.

B. Protection: Prevent mortar from staining faces of masonry. Protect all adjacent surfaces from

mortar droppings.

C. Cold Weather Requirements: Resetting and pointing work may only be performed as long as the

temperature remains above 40° Fahrenheit. If in any given 24-hour period the temperature drops

or is expected to drop below 40° Fahrenheit at any time, work will not recommence until a

constant temperature of 40° Fahrenheit or higher is projected for a minimum period of 72 hours.

Once stopped for reason of temperature, work will recommence only upon approval of the or

Owner’s Representative.



D. Hot Weather Requirements: Protect setting and pointing mortar when temperature and humidity

conditions produce excessive evaporation of water from mortar. Provide artificial shade and

wind breaks and use cooled materials as required to minimize evaporation. Setting and pointing

work shall be protected during hot, dry weather from premature drying or rapid curing by using

dampened fabric coverings or controlled misting with water as required to keep mortar moist for

72 hours following final tooling. Do not apply mortar to substrates with temperatures of 90°

Fahrenheit and above unless otherwise indicated.

E. Materials shall be used only at the manufacturer’s recommended temperature tolerances.

1.8 COORDINATION

A. Preconstruction Conference: Prior to beginning the work of this Section, convene a meeting with

the Owner’s Representative and all relevant parties to review work requirements and all job

conditions and processes. All subcontracting firms involved with this work shall participate in

this meeting.


C. Iron Fence Removal (Section 050372) shall be completed before the work of this Section is

performed. Coordinate resetting stone masonry with other trades to ensure accurate alignment of

existing fence post holes for fence re-installation.

D. Masonry Cleaning (Section 040310) shall be completed prior to the work of this Section being

performed.

PART 2 - PRODUCTS

2.1 MORTAR

A. Mortar Mix: ASTM C270, Type N

1 part Cement (ASTM C150) consisting of:

3/4 part Portland Cement, Type 1, White

1/4 part Saylor’s Cement

1 part Hydrated Lime, Type S (ASTM C207)

5 parts Aggregate (ASTM C144) consisting of:

3 parts Schofield “181”


B. The mortar mix above was developed using materials that closely approximate the appearance

and performance characteristics of the original mortar. Deviation from this mix may change the

appearance or performance of the mortar. Substitutions, if made, shall match the color of the

original mortar and color and gradation of original aggregate.

C. Mortar Materials:



1. Portland Cement: ASTM C150 Type I, white and Saylor’s Cement (brown). Masonry

cement shall not be used.

a. White Portland Cement available from Lehigh Cement Company, 7660 Imperial

Way, Allentown, PA 18195 (800) 638-1716, or approved equal.

b. Saylor’s Cement available from Nazareth Cement Plant and Terminal, Lehigh

Cement Company, 3938 Easton Nazareth Highway, Nazareth, PA 18064, (800)

437-7762, North Region Sr. Sales Representative: Dominic Jampo, (610) 926-

1024, cell: (484) 507-4109, or approved equal.

2. Hydrated Lime: ASTM C207, Type S, incorporated as a finely divided powder in

uniform particle size, free of lumps, flakes or other inconsistencies.

a. Available from Graymont, call for local supplier (800-537-4489, or approved

equal.

3. Mortar Aggregates: ASTM C144 natural sand blend, rounded to sub-angular in shape,

washed, screened and dried. Aggregate to be selected to match the color and texture of

the original mortar aggregates as closely as possible while remaining in compliance with

ASTM C144 grading requirements.

a. Schofield “180” and “107” available from Schofield Stone, P.O. Box 110, Bound

Brook, NJ 08805 (732) 356-0858, or approved equal.

4. Dry Pigments: Pigments, if required, shall be non-fading, UV-stable pigments, blended

with other dry components, in proportions not to exceed those specified in ASTM C979.

5. Admixtures: Admixtures, including air-entraining agents, anti-freeze additives, latex

modifiers, calcium chloride, or otherwise, shall not be used.

6. Water: Potable, free of deleterious quantities of material which may affect mortar

performance or appearance.

2.2 STONE

A. Supply new stone that matches the original schist in color, veining, texture, and surface finish.

B. Stone shall comply with ASTM C 615, “Standard Specification for Granite Dimension Stone” for

material characteristics, physical requirements, and sampling for selection of granite.

C. All schist shall be of standard architectural grade, free of cracks, seams, or starts, which may

impair its structural integrity or function. Color or other visual characteristics indigenous to the

particular material and adequately demonstrated in the samples or mockups will be accepted

provided they do not compromise the structural or durability capabilities of the material. Texture

and finish shall be within the range of samples approved by the or Owner’s Representative.

D. Acceptable suppliers include:

1. Saracino Industries Inc., Yonkers Stone Co., P.O. Box 426, Hawthorne, NY 10532, Tel:

(914) 330-7110, http://yonkersgranite.com.



2. Champlain Stone Ltd., 27 Elm Street, Warrensburg, NY 12885, Tel: (518) 623-2902,

http://www.champlainstone.com.

3. A. Ottavino Corporation, Stoneworks, 80-60 Pitkin Avenue Ozone Park, NY 11417, Tel:

(718) 848-9404, Fax: (718) 848-7156.


2.3 STONE ADHESIVE

A. Provide UV-stable, non-yellowing epoxy adhesive intended for stone-to-stone and stone-to-metal

use.


1. Akepox 5010, Epoxy based stone adhesive, U.V. stable, knife grade as manufactured by

Akemi North America.

2. Clear Gel Epoxy as manufactured by Bonstone Materials Corporation.

3. Flexi-Weld 520T as manufactured by Edison Coatings, Inc.


C. Provide adhesive filler or pre-filled adhesive formula as recommended by manufacturer.

2.4 PINS

A. Provide stainless steel, AISI Type 302 or 304, threaded rods, 3/8” diameter, for Dutchman repairs

or re-joining fractured pieces.

2.5 COMPOSITE PATCHING (IF REQUIRED)

A. Provide custom colored patching mortars to match the existing stone. Acceptable products

include:

1. Jahn M160 Granite Patching Mortar, as manufactured by Cathedral Stone Products, Inc,

7266 Park Circle Drive, Hanover, Maryland, 21076, (410) 782-9150.

2. Custom 45, as manufactured by Edison Coatings 3 Northwest Drive Plainville, CT 06062

(860) 747-2220.

3. Thin Fill 55 Reprofiling Mortar as manufactured by Edison Coatings 3 Northwest Drive

Plainville, CT 06062 (860) 747-2220.

4. Lithomex Brick and Stone Repair Materials, as manufactured by Limeworks.us, 3145

State Road, Telford, PA 18969, 215) 536-6706.

5. Or approved qual.



2.6 TOOLS

A. Use of rotary grinders, power chisels, or any other power tools will be permitted only with prior

written approval of tool types, locations and mechanics by the Owner’s Representative (see 1.5

Mockups).

B. Chisels shall be narrower than the joints in which they are used.

C. Brushes for cleaning masonry shall be stiff, natural or synthetic bristle brushes. Metal brushes

shall not be used.

2.7 MICELLANEOUS

A. Setting Shims: Provide hardwood, slate, or plastic shims, non-staining to stone, sized to suit joint

thickness and bed depths.

PART 3 - EXECUTION

3.1 INSPECTION

A. Examine substrates, supports and conditions under which this work is to be performed and notify

the Owner’s Representative, in writing, of conditions detrimental to the proper completion of the

work. Do not proceed with work until unsatisfactory conditions are corrected. Beginning work

signifies Contractor’s acceptance of substrates and conditions.

B. Review the amount and extent of work to be completed with the Owner’s Representative prior to

the execution of the work. Confirm quantities and locations of work.

3.2 SITE WORK - REMOVALS

A. Prior to masonry removals, remove existing plantings located within the perimeter of the wall

and excavate soil adjacent to wall as required to permit removal and resetting of the existing

masonry. Excavation shall be performed using only hand tools. Take care not to mar or otherwise

damage masonry or the monument during excavation.

3.3 DOCUMENTATION

A. All masonry should be carefully labeled and photographed so that they can be reset in their

original locations. Establish and document masonry bond patterns, levels, and coursing before

removal. Carefully measure the dimensions and geometry of the wall prior to dismantling to

ensure an accurate reinstallation.

B. The label shall include a unique identifier for each masonry unit and shall indicate the original

orientation of the unit in the wall to ensure it is reset in its correct location.

C. The labeling system and documentation must be submitted for approval prior to removals, see

Paragraph 1.4 Submittals.



D. Temporarily label the front of the masonry units using tape or another approved method that can

be easily removed without disfiguring or damaging the stone. Units shall be permanently labeled

on an unexposed surface following removal.

3.4 REMOVAL

A. Protect and structurally support existing masonry to remain which surrounds or contacts removal

areas.

B. Stone masonry shall be carefully removed without damaging the removed units or adjacent work

to remain.

C. Power-operated, rotary hand-held saws and grinders will be permitted for use in cutting joints,

with the approval of the Owner’s Representative, only if the Contractor can demonstrate the

ability of the operators to use tools without damaging the masonry. If damage to the masonry is

caused by the use of power tools, only chisels and mallets will be permitted for the remainder of

the project.

1. Center-cut joints: If power operated tools are permitted by the Owner’s Representative,

these tools shall only be used to cut a single kerf in the center of the masonry joints. Hand

tools shall be used to remove the remaining mortar from sides of the joints.

2. Do not break or mar edges of masonry units or widen joints. Replace in kind all masonry

joints which have become damaged.

D. Carefully remove entire units from joint to joint in a manner that will permit replacement with

full-sized units.

E. Clean all mortar and debris from exposed surfaces of removed units using hand chisels, brushes,

and water.

F. Following cleaning, transfer the information contained in the temporary label to the side of the

masonry unit using weatherproof marking.

G. Notify the Owner’s Representative of any unforeseen detrimental conditions including voids,

cracks, bulges, and loose masonry units in existing masonry backups, rotted wood, rusted metals,

and other deteriorated items.

3.5 STORAGE

A. Following removal, masonry units shall be palletized and secured as necessary to pallets for

transportation to the designated storage location.

1. Support irregular-shaped units using softwood or rigid foam insulation.

2. Label pallets as necessary to identify original location of contents.

3. Stone shall be neatly stacked on pallets. Do not exceed the load capacity of the pallet.



B. Removed masonry units shall be stored in a secure location approved by the Owner’s

Representative until installation can proceed.

C. Storage location shall be adequately secured to protect the masonry from theft or damage by the

public or other trades.

D. If masonry is stored outside, protect the unit labels from weathering so that they remain legible.

3.6 RESETTING

A. In areas scheduled for resetting, reinstall masonry units removed from the area. Units shall be

reset in the same location from which they were removed. Use the documentation and labeling

system established before the removal to reset the units.

B. Mortar Mixing

1. Thoroughly blend all dry components before the addition of water.

2. Mix mortar in quantities needed for immediate use. Add approximately half the required

water and mix mortar for a minimum of five (5) minutes, and then slowly add more water

as needed to reach the desired working consistency. Mortar may be mixed by hand or by

mechanical batch-type mixer.

3. Add only clean, potable water at the project site. Do not add sand, cement, lime, bonding

agents, color admixtures, set accelerators, plasticizers, air entraining admixtures or other

materials unless specifically authorized in writing from the manufacturer.

4. Use mortar within 1/2-hour of mixing, after which unused mortar shall be discarded. Do

not re-temper mortar which has begun to set.

C. Pre-wet masonry prior to installation. Stone should be nearly saturated, but with a dry surface

when laid.

D. Masonry shall be set in a solid and evenly filled bed of mortar, with bed, head, and collar joints

filled.

1. Cover sides of unit and backfill void with sufficient mortar to ensure that there will be no

air voids when the new unit is set.

E. Stone units shall be set true and level, matching the existing bond pattern, coursing, and joint

details.

F. Deteriorated or missing units shall be replaced with new or salvaged masonry that matches the

original in type, size, texture, and finish. See 3.7 Unit Replacement.

G. Point and tool joints to match the original joint profiles after the new units have been properly

installed and adjusted.

H. Protect freshly installed masonry from weather for a minimum 48-hours after placement. In hot

or dry conditions, protect mortar from premature drying by periodic misting with a fine,

nebulized water spray or by covering with wet burlap.



I. Clean all exposed faces of reset masonry with non-metallic brushes and water to remove any

excess mortar before mortar has set.

3.7 UNIT REPLACEMENT

A. Masonry units with extensive damage that cannot be repaired to a satisfactory appearance, as

determined by Owner’s Representative, shall be replaced.

B. Final determination of which units require replacement shall be at the discretion of the Owner’s

Representative.

C. Units requiring replacement shall be replaced in kind. Fabricate new units to match the original

schist in shape, dimension, profile, and finish.

D. Retain original damaged units, suitably marked to identify their original location and orientation,

for reference until replacement has been fabricated and approved by the Owner’s Representative.

E. Following approval of replacement units, damaged original units may be re-used as donor

material for other smaller replacement units or Dutchman repairs.

3.8 DUTCHMAN REPAIR

A. Repair complete spalls, large penetrations, inappropriate patches, or other losses in masonry units

by piecing-in material to match adjacent work (Dutchman repair).

B. New material, where used, shall match the existing stone in color, texture, and tooling.

C. Preparation:

1. Remove damaged or defective portion of existing stone unit by making horizontal and

vertical saw cuts into the face of the unit and demolish defective material to depth

required for fitting Dutchman.

a. Remove no more than the minimum required from the host stone to make repair.

b. Make edges at void cuts smooth and square to each other and to stone surface.

Make back of void flat and parallel to the face of the unit.

c. Do not overcut at corners or intersections. Use hand tools to produce clean, sharp

corners.

d. For damage occurring at the edge of units, void may be flared to a dovetail shape

to produce a self-locking repair.

e. Do not damage existing work to remain. If damage occurs, enlarge repair area as

required to remove damage.

f. Clean void to remove all loose material, dust, and debris.

2. Cut and trim Dutchman to accurately fit the void cut in the host stone.



a. Joints between Dutchman and host stone shall not exceed 1/16 inches.

b. Cut and orient Dutchmen so that natural bedding planes, where applicable, are

parallel to those of the host stone.

3. Pinning: Pin large repairs, including Dutchmen greater than or equal to 2 inches thick and

4 inches in diameter, or as required to support and produce a stable and durable repair.

a. Before applying adhesive, prepare pieces for concealed mechanical anchorage

consisting of threaded stainless steel rod set in holes drilled into, but not through,

host stone and Dutchman.

b. Provide a minimum of two pins per repair.

c. Center and space pins at minimum 1 inch from any edge.

d. Drill holes to provide a minimum of 1 inch of embedment into both host and repair

stones.

e. Clean holes free of dust and debris using compressed air.

f. Holes for pins shall be completely filled with adhesive and free of voids after pin is

inserted

4. Tool Dutchman as required to match adjacent tooling in host stone. Final tooling may be

done in place.

D. Setting Dutchman:

1. Clean bonding surfaces of Dutchman and void in host stone to ensure they are dry and

free of dirt, grease, and other contaminants.

a. De-grease surfaces using acetone or another suitable solvent as recommended by

adhesive manufacturer.

2. Mask exposed faces of stone directly adjacent to repair areas using tape or strippable

masking.

3. Mix adhesive according to manufacturer’s written instructions.

4. Apply an even thickness of adhesive to both surfaces, filling all crevices and voids.

a. Adhesive must remain at minimum 1/4 inch away from the exposed edge(s) of the

repair.

5. Securely join, align, and support pieces using clamps or other devices until adhesive has

set.

6. Immediately remove excess adhesive with solvent as recommended by adhesive

manufacturer. Remove masking before adhesive has set.



E. If open joints or voids remain along perimeter joint of repair after adhesive has cured, fill with

custom colored composite patching as required to match adjacent stone in color, texture and

profile.

F. Allow adhesive to achieve full cure as indicated in manufacturer’s instructions before performing

any final cutting, tooling or dressing.

3.9 COMPLETION

A. After mortar has set, thoroughly clean exposed masonry surfaces of excess mortar and foreign

matter using stiff nylon or natural bristle brushes and clean water spray applied at low pressure.

1. The use of metal scrapers or brushes will not be permitted.

2. The use of acidic masonry cleaners will not be permitted.

B. Protect new work against damage from subsequent work.

C. Any defective or failed work shall be repaired or replaced using approved procedures.

D. Following inspection and acceptance of the completed masonry work, replace soil within wall

perimeter and lightly compact. Top of soil shall be no higher than the bottom of the monument’s

marble base.

END OF SECTION


HISTORIC IRON FENCE RESTORATION 050372 - 1

SECTION 050372 – HISTORIC IRON FENCE RESTORATION

PART 1 - GENERAL

1.1 DESCRIPTION

A. The work of this Section consists of providing all labor, materials, equipment and services to

complete the restoration of iron fence around the Thomas Paine Monument. Work includes,

but is not limited to:

1. Removal of existing iron fencing for restoration in a metal shop off-site.

2. Blast cleaning existing iron fencing to remove coatings and corrosion.

3. Replacement of damaged or missing fence elements with new to match existing.

4. Shop prime and paint cleaned iron fencing.

5. Reinstallation of the iron fence.



2. Section 040342 Historic Stone Marble Restoration



1. Thomas Paine Monument Conditions Assessment and Materials Analysis, dated


1.2 REFERENCES

A. Materials and work shall conform to the latest editions of reference specifications listed below,

specified herein and to all applicable codes and requirements of local authorities having

jurisdiction, whichever is more stringent.

1. American Society for Testing and Materials (ASTM)

a. A27/A27M Standard Specification for Steel Castings, Carbon, for General

Applications

b. A48/A48M Standard Specification for Gray Iron Castings

c. A53/A53M Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc

Coated, Welded and Seamless



d. A536 Standard Specification for Ductile Iron Castings

e. A653 Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-

Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process

f. F2329/F2329M Standard Specification for Zinc Coating, Hot-Dip, Requirements

for Application to Carbon and Alloy Steel Bolts, Screws, Washers, Nuts, and

Special Threaded Fasteners

2. American Welding Society (AWS), “D1-1: Structural Welding”

3. Industrial Fasteners Institute (IFI), “Handbook on Bolt, Nut and Rivet Standards”

4. National Association of Architectural Metal Manufacturers (NAAMM) specifications and

guidelines

5. National Park Service, Preservation Assistance Division, “Metals in America’s Historic

Buildings: Uses and Preservation Treatments”

6. Society for Protective Coatings (SSPC)

a. SSPC PC-10 Near White Blast Cleaning (for work performed in the shop)

b. PA 1 Shop, Field and Maintenance Painting, Steel Structure Painting Manual, vol.

2

7. Manufacturer’s printed instructions

B. Materials shall conform to governing regulations regarding the content of volatile organic

compounds.


A. Contractor: All work of this Section shall be done by a qualified architectural metals restoration

Contractor with a minimum of five (5) years of experience working with materials and

assemblies similar to those required for the Project. The Contractor must demonstrate three (3)

projects similar in scope and type to the required work involving facilities designated as

Landmarks by local governments, or buildings listed on the National or State Register of

Historic Places.

B. Conservator: The Contractor shall retain the services of a qualified Conservator at their own

expense. The Conservator shall supervise the work of the Contractor to ensure conformance

with best practices in the conservation of historic monuments. The Conservator shall be

specialized in stone conservation, have a minimum of ten (10) years of experience working

with historic stone monuments, and hold Professional Associate or Fellow membership in the

American Institute for Conservation.

C. Fabricators: All fabrication work of this Section shall be done by qualified Fabricators with a

minimum of five (5) years of experience fabricating materials similar to those required for the



Project. The Fabricator must demonstrate three (3) projects similar in scope and type to the

required work involving facilities designated as Landmarks by local governments, or buildings

listed on the National or State Register of Historic Places.

D. Mechanics: The Contractor shall maintain a steady work crew consisting of skilled mechanics

who are experienced with the materials and methods specified and are familiar with the design

requirements. Mechanics shall have skill and experience of sufficient level to accomplish the

work described. Workers shall be carefully supervised to ensure that the work is accomplished

to meet or exceed the highest standards of the trade. Contractor shall maintain a full-time

Foreperson who fluently speaks, reads, and writes English. In acceptance or rejection of the

work of this Section, no allowance will be made for lack of skill on the part of mechanics.


Substitutions and additions of work force shall be permitted with the Engineer’s consent,

so long as there is no adverse effect on quality or performance of work.

E. Source Limitations: Obtain products from a single source for each type of material required to

ensure a match in quality, color, texture, and pattern.

F. Damage: The Contractor shall repair or replace at no additional expense to the Owner and to

the satisfaction of the Owner’s Representative all broken, lost, or damaged materials resulting

from the work of this Section.

G. Owner’s Representative shall be given regular access to the Contractor’s scaffolding, swing

stage, or work site so that he/she may inspect work being performed.

H. Owner’s Representative shall be given regular access to the Fabricator’s studio or work site, so

that he/she may inspect the work being performed.

1.4 SUBMITTALS

A. Qualification data and references for firms and persons specified in Paragraph 1.3 “Quality

Assurance” to demonstrate their capabilities and experience.

B. Product Literature: Submit copies of the manufacturer’s technical data for each product

including their recommendations for installation and use and Safety Data Sheets (SDS).

Include test reports and certificates that verify the products’ compliance with the specification’s

requirements. One complete set of product literature and SDS shall be placed in a 3-ring, loose-

leaf binder and shall be present on the job site at all times for the reference of the Owner’s

Representative and mechanics.

C. Program of Work: Prepare a written, detailed description of materials, methods, equipment,

and sequence of operations to be used for each phase of the work of this Section including

protection of surrounding materials and project site for the approval of the Owner’s

Representative.

1. Describe the methods for documenting the original fence layout and collecting data

points and plumb lines for re-installation of the stone. Include method for labeling fence

section and a transportation plan.



2. If materials and methods other than those indicated are proposed for any phase of

restoration work, add to the Program of Work a written description of such materials and

methods, including evidence of successful use on comparable projects, and

demonstrations to show their effectiveness for this Project and worker's ability to use

such materials and methods properly.

D. Documentation: Provide copies of documentation of existing fence showing the location of

sections to be removed for reinstallation and labels assigned to each unit. Include all

measurements and locations of post holes, which will be required for the proper re-installation.

E. Containment and disposal plans for coating removal and cleaning operations in accordance with

all applicable regulations.

F. Samples: Contractor shall submit three (3) sets of the following to the Engineer for approval:

1. Samples of painted finishes for initial selection.

2. Samples of all hardware, anchors, and fasteners.

3. Samples of all castings for approval prior to full-scale production.

G. Shop Drawings: Contractor shall submit the following to the Engineer for approval:

1. Drawings for temporary shoring systems, if necessary, approved by a licensed structural

engineer.

2. Dimensions of each piece, component or ornament that requires fabrication.

a. No final sizing or finishing shall be done until the Shop Drawings for that part of

the work have been approved.

3. Conditions for installation showing layout, dimensions, and location of each component

corresponding to the sequence and procedure of installation.

H. Submittal Labels: Clearly label all samples to include the project name and contract number,

the product name, manufacturer name, and any other information relevant to identification of

and differentiation between samples including production codes, batch numbers, and color or

formula numbers.

I. Field Measurements: Fabricator and/or Contractor shall be responsible for all field

measurements. Fabricator and Contractor shall review, approve and countersign all of their

Shop Drawings prior to their submission to the Engineer for review and approval.

J. If alternate methods and materials to those specified are proposed for any phase of the work,

provide written description. Provide evidence of successful use on comparable projects and

demonstrate its effectiveness for use on this project.



1.5 MOCKUPS

A. Prior to executing work, provide in-place mockups for the Engineer’s approval. Resubmit

panels until the Engineer is fully satisfied. Mockups shall be prepared by the Contractor using

the same workmen, methods, and materials that will be employed for the remainder of the

work. Approved mockups shall be retained, undisturbed and suitably marked, as the standard

of work throughout construction. Mockups may be incorporated into the finished work when so



Representative.



no less than forty-eight (48) hours in advance of mockup.

D. Provide protection for adjacent surfaces during the mockup phase.


1. The removal of one fence section and two posts

2. Paint removal from one section of fence. This will require a visit to the metal workshop.

3. Prime and paint one section of fence. This will require a visit to the metal workshop.

4. The installation of one fence section and two posts.

1.6 JOB CONDITIONS

A. All materials shall be used only within the manufacturer’s recommended temperature

tolerances.

B. Perform all work of this Section in accordance with all City, State and Federal regulations

regarding the transportation, storing, handling, application, removal and disposal of chemicals

and run-off.

1. Use all necessary precautions to protect persons performing the work and others from any

harmful effects of the cleaning agents. Workers shall be required to wear protective

clothing, goggles, face shields, gloves, and other clothing or equipment in compliance

with MSDS, governing Federal, State, and local safety codes and regulations.

2. Do not allow run-off from the paint removal or cleaning process to enter storm sewer

system, contaminate water supplies or to enter natural bodies of water. Dispose of

effluent in safe and legal way as outlined in the approved containment plan.

3. Provide, erect, and maintain barricades, danger signals and warning signs as needed.



1.7 LEAD-CONTAINING PAINT

A. Work that disturbs lead-containing paint shall be done in accordance with all federal, state and

local regulations and all applicable OSHA regulations, Title 29, Section 1929.62, Code of

Federal Regulations, OSHA, US Department of Labor.

B. Dispose of lead-containing paint chips as hazardous waste according to federal, state, and local

regulations: New York State Department of Environmental Conservation (NYSDEC), Title 6,

Part 364 and Parts 370-374; and US Department of Transportation, 49CFR Parts 173, 178, and

179.

C. Comply with all applicable regulations for the containerization, transportation and disposal of

hazardous waste.


A. Packing and Loading: Metal components shall be carefully packed and loaded for shipment

using all reasonable and customary precautions against damage in transit. No material which

may cause staining or discoloration shall be used for blocking or packing.

B. Deliver materials to site in manufacturer’s original and unopened containers and packaging,

bearing labels as to type and name of product and manufacturer.

C. Store materials off the ground and in accordance with manufacturer’s instructions to prevent

contamination by foreign materials. Maintain packaged materials in a clean, dry state protected

against weather, traffic, and foreign materials. Salt shall not be used for removing ice on or

near finished metals under any circumstances.

D. Protect materials from theft, tampering, acts of vandalism, or possible injury to workers and the

general public.

1.9 COORDINATION


with the Owner’s Representative and all relevant parties to review the requirements of the

Quality Control Plan, installation procedures, locations of required mockup areas, and all job

conditions and processes. All subcontracting firms involved with this work shall participate in

this meeting.


C. The removal of the fence shall be completed before the work of Section 040344 Historic Schist

Restoration.



PART 2 - PRODUCTS

2.1 WROUGHT IRON

A. Provide new wrought fence details and brackets to match existing.

1. Metals:

a. Ductile Iron: 65-45-12, ASTM A536

2. Dimensions: Match existing

3. Color: Match existing

2.2 PAINT MATERIALS

A. Primer for blast cleaned elements: A high performance zinc rich primer such as “Series 90-98

Tnemec-Zinc," manufactured by Tnemec Company, Inc., or approved equal. Apply 2 coats.

Provide minimum 5 mil dry film thickness.

B. Second and Finish Coats: "Series 113 “H.B. Tnemec-Tufcoat” manufactured by Tnemec

Company, Inc. or approved equal. Provide 4 - 9 mil dry film thickness.

C. Colors: Finish Coat paint color to be Tnemec “Black” 35GR in a semi-gloss finish. Prime

coats and undercoats shall each have a slight variation of color to distinguish them from the

preceding coat.

2.3 MISCELLANEOUS

A. Welding Rods:

1. Type and alloy of filler metal and electrodes as recommended by the manufacturer of

metal to be welded, and as required for color match, strength and compatibility in the

fabricated items.

2. Weld rods and Electrodes to conform to ASME SFA-5.15 “Specifications for Welding

Electrodes and Rods for Cast Iron.”

B. Anchoring

1. Lead for Setting Cast-iron: molten lead is to be used in the setting of the cast-iron

elements, in accordance with accepted industry standards and practices. Antimonial lead.

2. Bolts for anchoring shall be wrought iron, cast iron, low alloy steel or carbon steel anchor

bolt system, as approved by the Resident Engineer, based on site conditions.

a. Carbon steel to be Grade A according to ASTM A 307 “Standard Specifications for

Carbon Steel Bolts, Screws and Studs.” Alloy steel to conform to ASTM A354



“Standard Specification for Quenched and Tempered Alloy Steel Bolts, Studs and

other Externally Threaded Fasteners.” For components of mating fasteners (bolts,

nuts, washers) use carbon or alloy steel according to ASTM A563 “Standard

Specifications for Carbon and Alloy Steel Nuts.”

C. Protection for adjacent surfaces such as plastic sheeting or liquid strippable masking agent

PART 3 - EXECUTION

3.1 INSPECTION

A. Examine the areas and conditions under which work of this Section will be performed. Correct

conditions detrimental to timely and proper completion of the work, such as metal fasteners,

wires and cables, loose masonry, etc. Do not proceed until unsatisfactory conditions are

corrected.

3.2 DOCUMENTATION

A. All fence sections and posts should be carefully labeled and photographed so that they can be

reset in their original locations. Key the labels to photographs, sketches, or plans for

reinstallation.

1. The label shall include a unique identifier for each fence section and post and shall

indicate the original orientation wall to ensure it is reset in its correct location.

2. The labelling system and documentation must be submitted for approval prior to

removals, see Paragraph 1.4 Submittals.

3. Labels shall consist of stamped metal tags attached with wire that can withstand

sandblasting and repainting so that they can remain on the sections throughout the

restoration process.

B. Carefully measure the dimensions and geometry of the wall prior to dismantling to ensure an

accurate reinstallation. Produce templates of the post hole locations in the coping stones to

facilitate reinstallation on the original

3.3 REMOVAL

A. Dismantling of the fence is to be done only in the presence of the Architectural Conservator

who is experienced with historic metalwork.

B. Carefully remove the wrought iron fence from the perimeter wall. If the bolts can be loosened,

brackets between fence post sections may be mechanically separated. If the bolts cannot be

loosened, or the connection is a welded connection, the fence can be cut at these locations.



1. Cut metal by sawing, shearing, or blanking. Flame cutting will not be permitted. Make

cuts accurate, clean, sharp and fee of burrs without deforming adjacent surfaces or

metals.

C. Gently warm the posts near their settings in the stone to soften the lead. Carefully shake the

posts to loosen and remove them. Legs are not to be cut

D. Support each item as it becomes loosened to prevent stress and damage to the historic fabric.

E. Package the fence sections and elements for transport to the metal workshop. Prevent metal

elements from getting broken or bent in transit.

F. Color photographs are to be taken during the dismantling process to document the removal, the

components and the connections. These photographs can be used to assist in the reinstallation

of the units after restoration.

3.4 CLEANING

A. Painted coating and rust are to be removed from the surface of the cast iron using abrasive

methods performed in accordance with the requirements of SSPC PC-10 Near White Blast

Cleaning.

B. The end condition of the cleaned surface, when viewed without magnification, is to be free of

all visible oil, grease, dust, dirt, mill scale, rust, coating, oxides, corrosion products and other

foreign matter.

C. Some fastener holes may need to be re-drilled to remove any accumulated corrosion. All metal

newly exposed by this method will need to be immediately primed.

D. Be aware that lead paint may be present. Follow all local, state, and federal regulations for

handling and disposal of lead-based paint.

3.5 METALS FABRICATION

A. Replace all missing, broken, or deteriorated pieces with new units matching the existing or

adjacent in size, profile, and conformation.

B. Take field measurements prior to preparation of shop drawings and fabrication.

C. All materials, accessories, and other related parts shall be new and free from defects which in

any manner may impair their character, appearance, strength, durability or function.

D. Except as otherwise shown on the approved Shop Drawings, use materials of size, thickness

and type required to produce reasonable strength and durability in executing the work of this

Section.

E. Provide materials that have been selected for their surface flatness, smoothness and freedom

from surface blemishes where exposed to view in the finished unit. Exposed-to-view surfaces,



which exhibit pitting, seam marks, roller marks, stains, discolorations or other imperfections on

the finished units will not be acceptable.

F. Components shall be designed and fabricated to allow for expansion and contraction for a

minimum ambient temperature range of 120° F., without causing buckling, excessive opening

of joints, or overstressing of welds and fasteners or anchors.

G. Fabricate with accurate angles and surfaces which are true to the required lines and levels,

grinding exposed welds smooth and flush, forming exposed connections with hairline joints,

and using concealed fasteners wherever possible.

H. All removable members shall be carefully machined and fitted and shall be secured by bolts of

proper size and approved spacing.

I. Drill or cleanly punch holes; do not burn.

J. Provide all hardware required for installation.

K. Connections:

1. Mill joints to a tight, hairline fit. Form joints exposed to weather to exclude water

penetration. Dress surfaces smooth and free from mill marks or imperfections.

2. Bolts and screws: Make threaded connections tight with threads entirely concealed. Use

lock washers and nuts. Screw heads exposed to view shall be flat and counter-sunk

unless otherwise noted. Cut off projecting ends of exposed bolts and screws flush with

nuts or adjacent metal.

3. Welding shall be in accordance with “Standard Code for Welding in Building

Construction” of the American Welding Society (AWS) and shall be done with electrodes

and methods as recommended by the manufacturers of the metals being welded. Weld

shall be continuous, except where spot welding is specifically permitted. Welds exposed

to view shall be ground flush and dressed smooth and to match profile of adjoining

surfaces. Undercut metal edges behind surfaces which will be exposed to view so as to

prevent distortion of finished surface. Remove weld splatter and welding oxides from all

welded surfaces.

3.6 SHOP FINISHING

A. Shop coat all ferrous metal surfaces using specified primer paint and two coats of the specified

finish paint according to the Steel Structures Painting Manual Vol. 2, SSPC PA-1, “Paint

Application Specification No. 1, Shop, Field and Maintenance Painting.”

B. Paint shall be delivered in the original containers of the approved manufacturer

C. Painting shall be done in dry weather or under cover, and iron surfaces shall be free of moisture

or frost. No materials shall be delivered until the shop coat has dried.

D. Coats shall follow the specified thicknesses as specified in Section 2.2.



E. Surfaces concealed from view in the finished construction work and which will not be

accessible shall receive an additional shop coat of paint. Touch-up marred and abraded

surfaces with the specified paint after erection in the field.

3.7 INSTALLATION AND REASSEMBLY

A. All ironwork shall be installed in strict accordance with plans and specifications in a

workmanlike manor.

B. Re-installation of the fence is not to begin until the paint has fully dried.

C. All components shall be laid out and pre-assembled to ensure proper alignment and fit.

D. Re-install the fence in the order it was originally constructed, recreating its original appearance.

E. Reassemble iron fence so that it is plumb, level and secure.

F. Components shall be reassembled to allow for expansion and contraction for a minimum

ambient temperature range of 120° F., without causing buckling, excessive opening of joints or

overstressing of welds and fasteners or anchors.

G. Replace all existing fasteners with wrought-iron or carbon-steel bolts, nuts, screws or other

fasteners.

H. Fence posts shall be set in molten lead. Be sure the masonry is completely dry prior to pouring

the lead. Any moisture in the stone will turn to steam and potentially spall the stone.

I. Fence sections shall be attached to the fence posts using new brackets that are bolted or welded

to the posts. The fence sections shall be attached to the brackets using bolts.

J. Do not cut or abrade finishes which cannot be completely restored in the field. Return items

with such finishes to the shop for required alteration, followed by complete refinishing, or

provide new units at Contractor’s option.

K. Immediately after assembly, clean all bolted connections and all filled and abraded areas.

L. Field Welding:

1. Comply with AWS Code for the procedures of manual shield metal-arc welding, the

appearance and quality of the welds made, and the methods used in correcting welding

work.

2. Any field welding required shall be concealed and not visible in the finished work.

3. Grind all welds smooth.

M. Field prime and paint all fasteners, welds, or metal surfaces that have become damaged during

installation. Protect all adjacent masonry from paint drips or overpainting.



3.8 SITE CLEAN-UP

A. Keep the site clean and remove all debris at the end of each work day.

END OF SECTION


HISTORIC BRONZE SCULPTURE TREATMENT 050387 - 1

SECTION 050387 – HISTORIC BRONZE SCULPTURE TREATMENT

PART 1 - GENERAL

1.1 DESCRIPTION

A. Work of this Section consists of providing all labor, materials, equipment and services to treat

the bronze bust at the top of the Thomas Paine Monument. Work includes, but is not limited to:

1. Cleaning to remove general soiling and reduce water streaks.

2. Application of protective wax coating.


1. Section 040310 Historic Masonry Cleaning



1. Thomas Paine Monument Conditions Assessment and Materials Analyses, dated


1.2 REFERENCES

A. Manufacturer’s printed recommendations


A. All work of this Section shall be done by a trained Conservator specialized in metal/bronze

conservation and holding Professional Associate or Fellow membership in the American


experience working with historic metal. The Conservator must demonstrate three (3) projects

similar in scope and type to the required work completed in the last 5 years.

B. Conservation technicians, if used, shall be experienced with the materials and methods


supervised to ensure that the work is accomplished to meet or exceed the highest standards of

the trade. Conservator shall maintain a full-time Foreperson who fluently speaks, reads, and

writes English. In acceptance or rejection of the work of this Section, no allowance will be

made for lack of skill on the part of technicians.

C. The Conservator shall provide one crew of workers for the duration of the project. Substitutions

and additions of work force shall be permitted with the Owner’s Representative’s consent, so

long as there is no adverse effect on quality or performance of work.



D. Conservator shall replace at no additional cost to the Owner all materials that are broken, lost,

or damaged during the work of this Section.

E. If the Conservator fails to follow approved procedures, work may be stopped immediately.

1.4 SUBMITTALS


Paragraph 1.3 “Quality Assurance” to demonstrate their capabilities and experience.

B. Product Literature: Submit copies of the manufacturer’s technical data for each product,

including their recommendations for use, and Safety Data Sheets (SDS). Include test reports

and certificates that verify the products’ compliance with the requirements of this Section. One

complete set of product literature and MSDS shall be placed in a 3-ring, loose-leaf binder and

shall be present on the job site at all times for the reference of the Owner’s Representative and

Mechanics.

C. Program of Work: Submit a detailed written description of materials, methods, equipment, and

sequence of operations to be used for each phase of the cleaning work including protection of

surrounding materials and Project site.

1. If materials and methods other than those indicated are proposed for any phase of the

cleaning work, include a written description of such materials and methods, including

evidence of successful use on comparable projects, and demonstrations to show their

effectiveness for this Project and worker's ability to use such materials and methods

properly.

1.5 MOCKUPS

A. Not used.


A. All materials shall be delivered to the job site in original unopened containers bearing

manufacturers’ name and label. Store and handle materials in strict compliance with

manufacturer's instructions.

B. Protect materials from tampering, acts of vandalism, possible injury to workers, the general

public, intrusion of foreign materials, and moisture. All vessels shall have tight fitting covers.

At no time shall vessels containing chemicals be carried to working levels when vessels are

open.

1.7 JOB CONDITIONS

A. Cold weather protection: For any cleaning method requiring water, cleaning shall not begin

until average daily temperatures remain above 40°F (4°C), including overnight. Do not clean if



the temperature of air or masonry drops below 40°F (4°C). Do not clean within seven days of

anticipated freezing temperatures.

B. Any material, including adjacent materials, damaged as a result of the work of this Section shall

be repaired or replaced at the Conservator’s expense to the satisfaction of the Owner’s

Representative.

C. The Conservator will use all necessary precautions to protect persons performing the work and

others. Workers shall be required to wear protective clothing, goggles, face shields, gloves, and

other clothing or equipment in compliance with SDS, governing Federal, State, and local safety

codes and regulations.

D. The Conservator shall provide, erect, and maintain barricades, danger signals and warning signs

as needed.

1.8 COORDINATION


with the Owner’s Representative and all relevant parties to review work requirements and all

job conditions and processes. All subcontracting firms involved with this work shall participate

in this meeting.

B. The work of this Section shall be completed prior to performing the work specified in Section

040310 Historic Masonry Cleaning

1.9 SCAFFOLDING

A. Scaffold work required to accomplish the work of this Section shall be the responsibility of the

Conservator and shall be made available to all required trades and the Owner’s Representative

without charge. All scaffolding, staging and appurtenances will be adequately and safely

maintained, and shall comply, in total, to the requirements of the Safety and Health Regulations

for Construction, and any and all other government agencies having jurisdiction. The most

stringent requirements shall govern.

1. Scaffolding shall be free standing and shall not make contact with the monument, fence,

or masonry retaining wall.

2. Any damage made to the structure by the scaffold(s) will be repaired by the Conservator

to the satisfaction of the Owner’s Representative at no cost to the Owner.

PART 2 - PRODUCTS

2.1 MICROCRYSTALLINE WAX

A. Renaissance Wax as manufactured by Picreator Enterprises Ltd. and distributed by Dennis

Blaine – Cutlery Specialties, 6819 S.E. Sleepy Hollow Lane, Stuart, FL 34997, (772) 219-0436




2.2 ABRASIVE HAND PADS

A. Scotch-Brite Ultra Fine Non-woven Silicon Carbide Hand Pads #7445 or #7448 as

manufactured by 3M, 3M Center, Building 220-12E-04, St. Paul, MN 55144, (800) 698-4595


2.3 TEMPORARY PROTECTION

A. Provide the following, or approved equal, for the protection of adjacent surfaces during

cleaning:

1. Polyethylene plastic sheeting

2. Strippable latex caulking

3. Liquid Strippable Masking Agent:

a. Spray Block 40, manufactured by Edison Coatings.

b. Sure Klean Strippable Masking, manufactured by ProSoCo.

c. ABR Rubber Mask, manufactured by Bonstone Materials Corporation.

d. Or approved equal.

B. Heat-resistant fiberglass blankets to protect stone during hot wax application.

C. All items for temporary protection of surfaces shall be non-staining and completely removable

without damage to the bronze or masonry.

2.4 MICELLANEOUS

A. Propane torch or other heating device suitable for hot waxing sculpture.

B. Brushes for cleaning shall be stiff natural or synthetic bristle brushes. Metallic/wire brushes

shall not be used.

C. Soft natural bristle brushes and soft cloths for buffing.

D. Pressure Washer: Pressure washers shall be fitted with a 40° fan-shaped nozzle and an in-line

pressure gauge and pressure regulator. Operating pressure shall not exceed 3000 psi, as

measured in-line, and equipment shall be capable of providing a flow rate of 5 or more gallons

per minute.



E. Water: Water for cleaning shall be potable and free of contaminants that may stain or otherwise

damage the bronze or masonry. Flush hydrants well before use. Provide in-line filtration as

required to meet the requirements above.

F. No metal fittings that can corrode or deposit materials on the bronze or masonry shall be used.

PART 3 - EXECUTION

3.1 INSPECTION




corrected. Beginning work signifies Conservator’s acceptance of substrates and conditions.

B. Before starting any work of this section, make a complete inspection of all surfaces to be treated

and identify areas that will require installation of protection or other special care.

3.2 PREPARATION

A. Install protection of adjacent surfaces, property, and people in accordance with the approved

Program of Work.

3.3 GENERAL PROCEDURES

A. Pressure wash sculpture to remove active corrosion

B. Gently scrub water run-off streaks with abrasive hand pads to reduce appearance. Do not

remove oxidation patina.

C. Install heat resistant blankets to protect adjacent stone. Ensure that adjacent stonework is

completely dry prior to heating sculpture. Saturated stone may spall if heated.

D. Carefully and evenly heat sculpture using torch or other device.

E. Apply an even coat of microcrystalline wax to the warm surface, ensuring even application into

recesses.

F. Allow sculpture to cool before buffing surface to remove excess wax.

G. Apply a second coat of wax to the cold surface and buff to remove excess.

H. Immediately remove all spills or stains on adjacent surfaces and restore affected surfaces at no

expense to the Owner.

I. Finished work shall have a uniform appearance.



3.4 COMPLETION

A. Rinse adjacent areas and remove any debris or accumulated matter.

B. Remove and legally dispose of all refuse from the work site.

C. Protect treated surfaces from construction related soiling. If, after treatment is completed, the

surface becomes dirty or wax coating is disturbed as a result of the Conservator's operations, it

shall be re-treated at the expense of the Conservator using the foregoing procedures.

END OF SECTION

JBC matched the appearance of the mortars with modern materials. The recommendations below

represent an effort to approximate the properties of the historic mortar using modern materials.

Consideration was given to matching the color, texture, and strength of the sample. The

replication mortars were matched to freshly broken samples.

As with the pointing of masonry in any historic structure, the original joint profiles and widths

should be documented before joints are raked and replicated during pointing.

It is our recommendation that the replication mix of the Schist Mortar be an ASTM Standard

Type N (ASTM C-270 by proportion) mortar. The Brick Industry Association describes a Type

N mortar as a general all-purpose mortar with good bonding capabilities and workability.

It is our recommendation that the replication mix of the Marble Mortar be a natural hydraulic

lime 3.5 mortar. A soft mortar is recommended for the marble as the marble is sugaring and

deteriorated. A harder mortar may cause additional spalls and chips at the edges of the joints.

All mortar joints should be fully raked to a depth of 2.5 times the width of the joint or to sound

mortar, whichever is deeper, and the units should be pointed to the same depth.

Schist Mortar Mix

1 part Cement (ASTM C150) to be composed of:

3/4 part White Portland Cement, Type I

1/4 part Sailors Cement

2 parts Hydrated Lime, Type S (ASTM C207)

5 parts aggregate to be composed of:

3 parts Schofield “181” (aggregate must pass through #8 sieve)


Marble Mortar Mix

EcoLogic Natural Hydraulic Lime Mortar, type 3.5 in “DGM SCG (F) Non-Pigmented”,

manufactured by LimeWorks.us.

NOTE: All parts should be measured by volume (not by weight). Dry ingredients should be

well blended before the addition of water. When newly installed, the mortar will appear lighter

as laitance (milky film caused by the mortar paste) will be covering the mortar and sand grains.

However, the laitance will naturally wear away over time.

Mortar Replication Recommendations

MR-1

Recommended Materials and Suppliers

As accurate replication mixes are difficult to formulate, the type and quantity of materials used

are essential to ensure on-site reproduction. Materials recommended in this report or their equal

may be used. If materials are substituted, the resulting appearance of the mortar may vary.

Recommended Cement

White Portland Cement, Type I

Available from:

Lehigh Cement Co.,

7660 Imperial Way Allentown, PA 18195

(800) 638-1716

Saylor’s Cement, Type I

Available from:

Nazareth Cement Plant and Terminal

Lehigh Cement Company

3938 Easton Nazareth Highway

Nazareth, PA 18064

(800) 437-7762

Sr. Sales Representative: Dominic Jampo, 610-926-1024, cell: 484-507-4109

Recommended Lime

Hydrated Lime, Type S

Available from:

Graymont, call for local supplier (800) 537-4489

Recommended Sand

As the selection of an appropriate aggregate is critical to the formulation of any replication mortar, the sand fraction isolated during analysis was compared to a library of sands

commercially available in the greater New York area. Aggregate samples have been enclosed to

facilitate substitutions with locally available sands.

Schofield “181” – described as a predominantly fine to coarse sized natural white concrete sand,

with the addition of light-colored pebbles up to 10mm in size.

Schofield “107” – described as a yellowish tan sand, ranging in size from fine to coarse grains.

Available from

George Schofield Co., Inc.

P.O. Box 110

Bound Brook, NJ 08805

(732) 356-0858

MR-2

Recommended Natural Hydraulic Lime Mortar

EcoLogic Natural Hydraulic Lime Mortar 3.5

Available from:

LimeWorks.us

3145 State Road,

Telford, PA 18969

(215) 536-6706,

http://www.limeworks.us/

MR-3

http://www.limeworks.us/