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Bureau of Project Delivery Innovation and Support Services Division Construction Quality Assurance Section
Specification Changes Pub 408/2011 Changes 5 & 6
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408/2011 Change 6
• Entire Pub. 408 and Pub. 7 is 1 Large Document – Each individual section has a thumbnail to navigate – Can still use the Table of Contents to navigate – BE CAREFUL WHEN YOU PRINT OR SAVE!
• Could accidently print or save 1626 pages
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101, 311, 411, 450, and App. D WMA 408/2011 Change 5
• Warm Mix Asphalt (WMA) – Added WMA to list of abbreviations in Section 101.02 – Added WMA base course mix design, production and
construction requirements in new Section 311 – Added WMA binder and wearing course mix design, production
and construction requirements in new Section 411 – Added WMA as an option to HMA for manual bituminous
patching operations in Section 450 – A number of other Sections referencing HMA also now
reference WMA – Added new standard Item Numbers/Descriptions for the
above in Appendix D
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108 Performance and Progress 408/2011 Change 5
• 108.05(c)5 Material Transfer Vehicle (MTV) – References New Section 411 – Superpave Mixture Design,
Standard and RPS Construction of Plant-Mixed WMA Courses
– Deliver mixture through the MTV at the correct laying temperature as specified in Section 409.2(e) Table A or Section 411.2(e) Table A, and free from lumps of chilled material
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110 Payment 408/2011 Change 5
• 110.04 Price Adjustment of Bituminous Materials – Added references to Section 311 – Superpave Asphalt Mixture
Design, Standard Construction, WMA Base Courses and Section 411 – Superpave Mixture Design, Standard and RPS Construction of Plant-Mixed WMA Courses
• 110.12 Price Adjustment for Diesel Fuel – Added same references to Section 311 and Section 411
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110 Low Strength Concrete Payment 408/2011 Change 6
• 110.10 Evaluation, Disposition, and Adjusted Payment for Low Strength Cement Concrete – PWLs no longer computed for evaluation and disposition of
low-strength concrete used for cast-in-place operations • Uses average compressive strengths of cylinders or cores • Uses standard deviation (s) of 350 psi for all calculations • PWLs no longer computed • F’(cores) ≥ F’(cs) + s, accepted at adjusted payment • F’(cores) < F’(cs) + s, remove and replace
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110 Low Strength Concrete Payment 408/2011 Change 6
• 110.10 Evaluation, Disposition, and Adjusted Payment for Low Strength Cement Concrete
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110 Low Strength Concrete Payment 408/2011 Change 6
• 110.10 Evaluation, Disposition, and Adjusted Payment for Low Strength Cement Concrete
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221 Geogrids 408/2011 Change 5
• New Section – Includes requirements for use of geogrids for stabilizing slopes
and foundations
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221 Geogrids 408/2011 Change 6
• 221.2(b) Backfill – Specification was expanded with more detailed backfill
gradation requirements
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409 Construction of Plant-Mixed HMA Courses 408/2011 Change 6
• 409.3(h)2.a.1 Partially Completed Lots – Increased the upper density limits for all courses – Increased the lower density limit for base courses
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409 Construction of Plant-Mixed HMA Courses 408/2011 Change 6
• 409.4(a)4 Density Acceptance – Increased the upper density limits for all courses – Increased the lower density limit for base courses
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• Revised Longitudinal Joint Incentive/Disincentive Core Sampling Requirements – Added language to handle longitudinal joint core samples
representing different JMFs or include work stoppages > 5 days • Clarifies the number of TR-447s are required • Clarifies the theoretical maximum specific gravity value to place on
the TR-447 • Added Illustrative Example No. 4 to demonstrate the above
– Requires the 12.5 mm Material Class to be used on the TR-447
when cores represent both 9.5 and 12.5 mm mixes
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PTM No. 729 Sampling Bituminous Roadway Pub. 19/October 2013
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• 501.3(k)4 Final Finish – C-a00003-A Changes to Specifications Section 501 S-13-017 – Allows Contractor’s request to use longitudinal texturing in lieu
of the random, transverse texturing pattern or may be required by the District, if indicated
• Requires burlap drag or broom device for macrotexture • Requires final texture pattern with grooves
– parallel with centerline – rectangular in shape; – 1/8 inch (± 1/64 inch) in width; – 1/8 inch to 3/16 inch in depth; and – 3/4 inch nominal center-to-center tine spacing
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Longitudinal Texturing of Concrete Pavement Special Provision
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• 501.3(q) Opening to Traffic – Added permission to use the maturity method (PTM No. 640)
for opening to traffic • Still cannot be opened prior to 96 hours (72 hours for HES)
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501 Concrete Pavement 408/2011 Change 6
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• New PTM – Estimates the concrete compressive strength to determine
when to perform operations such as: • Saw cutting • Removing formwork • Backfilling • Moving equipment • Breaking cylinders • Opening to traffic
– Correlates strength development to internal concrete
temperatures for each mix
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PTM No. 640 Maturity Method for Strength Pub. 19/October 2013
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PTM No. 640 Maturity Method for Strength Pub. 19/October 2013
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• 504.2 Material, 504.3(d) Base Course and 504.4 Measurement and Payment – Added reference to new Section 311 Superpave Asphalt Mixture
Design, Standard Construction, WMA Base Course – As in other sections, removed metric units
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504 Concrete Pavement 408/2011 Change 5
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601 Pipe Culverts 408/2011 Change 5
• 601.2(a)3.b.1 Lift Holes – Added language to prohibit punching lift holes
• Must be formed or cored
• 601.3(a) Construction – Prior to installation, the Contractor is to submit a detailed list
of lifting equipment and hardware, including capacities from the manufacturer for each size pipe being installed, and a daily visual review for wear and tear of the equipment
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Punched Lift Hole
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• Inspection Picture
Exposed Rebar at lift hole
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Remediation of Pipe Defects
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627 and 628 Temporary Barrier and Reset 408/2011 Change 5
• Allows Materials Other Than Concrete – Steel – Water-Filled
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• Table A – Reduced the Maximum Cement Factor for AAAP from 752 to
690 lbs/CY • To reduce bridge deck cracking
• Maturity Method
– Added permission to use the maturity method (PTM No. 640) • Time requirement must still be met • In case of malfunction, recommend molding cylinders • Cannot be used for 28-day QC, AT, VT or QA strengths
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704 Cement Concrete 408/2011 Change 6
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• Revised Reference from AASHTO T 141 to AASHTO R 60 – Still says to sample 1st 1/3 of the batch when sampling from
revolving drum truck mixers or agitators • Please note the AASHTO R 60 Section modified should read Section
5.2.4 instead of Section 5.2.5 – Section 5.2.5 was the AASHTO T 141 reference
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PTM No. 601 Sampling Fresh Concrete Pub. 19/October 2013
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• 709.1(g) Uncoated, Corrosion-Resistant Steel Reinforcement Bars – May be substituted for epoxy-coated reinforcement bars on a
bar-to-bar basis unless included in the VE-process for substructure units only
• 709.5 Certification
– Epoxy Coaters and Galvanizers, including Fabricators, must complete, submit with each shipment and maintain for three years, Forms CS-4171, CS-4171C and CS-4171F
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709 Reinforcement Steel 408/2011 Change 6
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• New Section – Includes material requirements for geogrids used for stabilizing
slopes and foundations
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738 Geogrids 408/2011 Change 5
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• 860.2(a) Inlet Filter Bag – Clarified that values listed in the property-table under “Value-
column” indicate the minimum average roll value (MARV)
• 860.3(a) Inlet Filter Bag – Install in accordance with manufacturer’s recommendation
including downstream earthen or sandbag berm. Inspect bag after each runoff event, replace or remove and clean bag when sediment has accumulated to 1/3 full or when flow capacity has been reduced causing flooding or bypassing. At final stabilization, remove bag and earthen or sandbag berm, plus dispose in manner satisfactory to the Representative.
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860 Storm Inlet Protection 408/2011 Change 6
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• Revised Requirements – Revised requirements for conformance to DEP March 2012
Erosion and Sediment Pollution Control Manual – Allows for District level acceptance instead of Bulletin 15
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867/868 Compost Filter Sock/Blanket and Filter Berm 408/2011 Change 5
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901 MPT During Construction 408/2011 Change 6
• References to “temporary concrete barrier” was changed to “temporary barrier” – Based on revisions to Section 627 and 628
• Added steel and water-filled
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• 1001.3(q)1 Removal of Falsework and Forms – Added permission to use the maturity method (PTM No. 640)
• Time requirements must still be met
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1001 Cement Concrete Structures 408/2011 Change 6
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• 1002.2(c) Mechanical Splice Systems – Revised the requirements and implemented maximum
allowable slip tolerances – Requires 4 samples of each rebar size submitted to LTS
• 3 assembled by the Contractor in the presence of an Inspector • 1 unassembled
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1002 Reinforcement Bars 408/2011 Change 5
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1042 Latex Modified Concrete or Mortar 408/2011 Change 6
• Entire Section – Revised to include best practices to reduce cracking and
unsatisfactory finish
• 1042.3(a)1.a Sandblasting or Water Blasting Equipment – Water blasting equipment minimum rated capacity is now
7500 psi, up from 4000 psi
• 1042.3(a)2.g Mixing & Delivery Control – Tolerance change for Coarse Aggregate, weight % (from
1.0% to 2.0%)
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1042 Latex Modified Concrete or Mortar 408/2011 Change 6
• 1042.3(a)2.h Loading – Time change on aggregate loading (from 12 hours to 6 hours)
prior to placement
• 1042.3(c)d.2 Wet Cure – Time change for covering the wet burlap with white
polyethylene went from (1 hour to 15 minutes)
• 1042.3(d)e Limitations of Operations – The temperature of placement of latex in the plastic state
changed from 50 – 80F to 50 – 85F
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• New Section – Includes requirements for pneumatically-applied shotcrete
used for structural repairs (ACI 506) Dry-mix or Wet-mix
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1043 Shotcrete 408/2011 Change 6
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• 1104.07(c)1 – Allow the use of an indicator light to a crosswalk pushbutton to
inform the pedestrian that their presence has been detected
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1104 Traffic Signals 408/2011 Change 5
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• 1105.02(d)6 Direct Tension Indicator (DTI) Devices – Sampling size increased from a minimum of 8 samples to a
minimum of 16 samples from each lot as per PTM No. 1 for testing at LTS
• 1105.02(d)7.d Assembly Testing and Installation – Section was revised to reflect the assembly and testing
required for bolt, nut, and washer rotational-capacity tests – Added new Subsection 7.d.1 Installation which references
Section 1050.3(c)7
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1105 Fabricated Structural Steel and Aluminum 408/2011 Change 5
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THE END!