FIELD SAMPLING AND TESTING MANUAL

SECTION 500

RIGID PAVEMENT

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TABLE OF CONTENTS - 500

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Section 550 PORTLAND CEMENT CONCRETE PAVEMENT 550.01 DESCRIPTION. 550.02 REQUIRED TESTS AND FREQUENCY.

A. Acceptance Samples and Tests--Field Laboratory Testing. B. Independent Assurance Samples and Tests.

1. District Laboratory Testing. 2. Materials and Research Division Testing.

Section 560 RECYCLED PORTLAND CEMENT CONCRETE PAVEMENT 560.01 DESCRIPTION. 560.02 REQUIRED TESTS AND FREQUENCY.

A. Acceptance Samples and Tests--Field Laboratory Testing. B. Independent Assurance Samples and Tests.

1. District Laboratory Testing. 2. Materials and Research Division Testing.

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550.01

Revised 3-2000

Section 550

PORTLAND CEMENT CONCRETE PAVEMENT

550.01 DESCRIPTION.

This work consists of constructing a pavement composed of Portland cement concrete, with or without reinforcements, on a prepared subgrade or base course.

550.02 REQUIRED TESTS AND FREQUENCY.

A. Acceptance Samples and Tests--Field Laboratory Testing. Perform one sieve analysis of both coarse and fine aggregate per 2000 S.Y. of concrete pavement with a minimum of one test per day and a maximum of three tests per day (see Section 816.04 of this manual for procedure). Report results to the District Materials Coordinator on SFN 10072.

Perform one slump and air test from the first load each day (see Sections 802.03 A. and 802.03 B. of this manual for procedure). After that, perform one slump, air, and yield test per 2,000 S.Y. with a minimum of one test per day and a maximum of three tests per day (see Section 802.03 of this manual for procedure).

Perform one moisture test on the coarse and fine aggregate daily (see Section 816.04 of this manual for procedure).

Cast one flexure test beam per mile with a minimum of two per project for 28-day testing (see Section 802.03 E. of this manual for procedure). Submit the 28-day flexural beam test results on SFN 19695 to the Materials and Research Division upon completion of the project. Cast additional beams as required for determining when to open to public traffic or hauling equipment.

Cast one set each of seven-day and 28-day test cylinders per 2000 S.Y. of pavement or a maximum of three sets per day (see Section 802.03 E. of this manual for procedure). Record sample information on SFN 7623.

The following procedure for thickness determination is optional and if used may be performed by either the contractor or by DOT personnel. The suggested procedure is as follows:

Perform one depth check per 500 foot interval for urban paving with a minimum of one test per day. Perform four depth checks per mile for rural paving. Immediately ahead of concrete placement, place an eight-inch

550.02 B.1.

Revised 3-2000

square, 28-gauge sheet metal plate (typical) on the subgrade, at random intervals in each traffic lane. Fasten these plates securely in place to avoid displacement during placement of the concrete and properly reference their locations so that they may be readily reestablished after the concrete has been finished, but still plastic. Thrust a calibrated rod through the concrete to determine the thickness.

Submit one random sample of cement per project to the Materials and Research Division (see Section 804.02 of this manual for procedure).

For Concrete Pavement Repair (CPR) projects cast one set each of seven-day and 28-day test cylinders for every 20 pours. If less than 20 pours, cast one set each of seven-day and 28-day test cylinders. A pour is defined as a continuous placement of concrete, whether at two or more sites or from two or more trucks. No flexural beams need to be cast. The rate for all other materials is the same as previously stated.

For Dowel Bar Retrofit projects cast one set of cylinders for each four hours of production. Test cylinders at six hours for compressive strength.

B. Independent Assurance Samples and Tests.

1. District Laboratory Testing. The District Materials Coordinator or a designated representative must obtain these samples and conduct these tests.

Obtain one sieve analysis and physical properties sample for each 20,000 S.Y. of concrete pavement. (See Sections 816.01 and 816.04 of this manual for procedure).

An alternative testing procedure for testing shale content of coarse and fine aggregate may be used when the pit from which the aggregate samples are obtained has at least a ten-year history of no prior test results which exceed 50% of the specification limit.

If this criteria is met, perform an initial shale test at the beginning of the construction season with three more random tests performed during the remainder of the construction season. If any shale test exceeds 50% of the specification limit or a new portion of the pit is utilized, revert testing to the frequency mentioned previously. The Department requires Materials Coordinators to keep a file on pits utilizing this testing procedure. Document the testing performed each year in the file.

550.02 B.2.

Revised 3-2000

Obtain one core for thickness and strength for every 4,000 S.Y. of pavement. Submit cores to the Materials and Research Division for testing.

Measure the pavement width at all points where cores are taken.

Perform Independent Assurance tests with equipment other than that used by project personnel. Independent Assurance tests include slump, air, yield, and 28-day compression test. Record the results on SFN 10069. Thefrequency for the Independent Assurance tests is one test every three miles for rural projects, and one test every 8,000 S.Y. for urban projects.

2. Materials and Research Division Testing. On all projects, submit one coarse and fine aggregate sample for each five miles of project length with a minimum of two samples per project to the Materials and Research Division.

Submit one sample for every source of water used. Water known to be of potable quality may be used without testing.

Submit one sample for each lot of hot applied joint sealant used.

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560.01

Revised 5-99

Section 560

RECYCLED PORTLAND CEMENT CONCRETE PAVEMENT

560.01 DESCRIPTION.

This work consists of removing, crushing, screening, and stockpiling Portland cement concrete pavement and adding new material to produce and place a Portland cement concrete pavement.

560.02 REQUIRED TESTS AND FREQUENCY.

A. Acceptance Samples and Tests--Field Laboratory Testing. On the project site, perform one sieve analysis of virgin coarse and fine aggregate, and salvaged aggregate per 500 tons with a maximum of three tests per day (see Section 816.04 of this manual for procedure). Report results to the District Materials Coordinator on SFN 10072.

Perform one slump and air test on the first load each day (see Sections 802.03 A. and 802.03 B. of this manual for procedure). After the initial load, perform one slump, air, and yield test per 2,000 S.Y. or a maximum of three tests per day (see Section 802.03 of this manual for procedure).

Perform one moisture test on the virgin coarse, virgin fine, and salvage aggregates per day (see Section 816.04 of this manual for procedure).

Cast one flexure test beam per mile with a minimum of two per project for 28-day testing (see Section 802.03 E. of this manual for procedure). Submit the 28-day flexural beam test results SFN 19695 to the Materials and Research Division upon completion of the project. Cast additional beams as required for determining when to open to public traffic or hauling equipment.

Cast one set each of seven-day and 28-day test cylinders per 2000 S.Y. of pavement or a maximum of three sets per day (see Section 802.03 E. of this manual for procedure). Record sample information on SFN 7623.

Submit one random sample of cement per project to the Materials and Research Division (see Section 804.02 of this manual for procedure).

The following procedure for thickness determination is optional and if used may be performed by either the contractor or by DOT personnel. The suggested procedure is as follows:

560.02 B.1.

Revised 5-99

Perform one depth check per 500-foot interval for urban paving. Perform four depth checks per mile for rural paving. Immediately ahead of concrete placement, place an eight-inch square, 28-gauge sheet metal plate (typical) on the subgrade, at random intervals in each traffic lane. Fasten these plates securely in place to avoid displacement during placement of the concrete and properly reference their location so that they may be readily reestablished after the concrete has been finished, but still plastic. Thrust a calibrated rod through the concrete to determine the thickness.

B. Independent Assurance Samples and Tests.

1. District Laboratory Testing. The District Materials Coordinator or a designated representative must obtain these samples and conduct these tests.

Obtain one sieve analysis and physical properties sample for each 5,000 tons of virgin coarse aggregate and virgin fine aggregate. Obtain one sieve analysis sample for each 5,000 tons of salvage coarse aggregate (see Sections 816.01 and 816.04 of this manual for procedure).

An alternative testing procedure for testing shale content of coarse and fine aggregate may be used when the pit from which the aggregate samples are obtained has at least a ten-year history of no prior test results which exceed 50% of the specification limit.

If this criteria is met, perform an initial shale test at the beginning of the construction season with three more random tests performed during the remainder of the construction season. If any shale test exceeds 50% of the specification limit or a new portion of the pit is utilized, revert testing to the frequency mentioned previously. The Department requires Materials Coordinators to keep a file on pits utilizing this testing procedure. Document the testing performed each year in the file.

Obtain one core for thickness and strength every 4,000 S.Y. of pavement.

Measure the pavement width at all points where cores are taken.

Perform Independent Assurance tests with equipment other than that used by project personnel. Independent Assurance tests include slump, air, yield, and one set of 28-day compression tests. Record the results on SFN 10069. The frequency for the Independent Assurance tests is one test for every three miles for rural projects, and one test for every 8,000 S.Y. for urban projects.

560.02 B.1.

Revised 5-99 Revised 5-99

2. Materials and Research Division Testing. Submit one virgin sand, virgin coarse and salvage coarse aggregate sample for each five miles of project length, with a minimum of two samples of each per project to the Materials and Research Division on all projects.

Submit one sample for every source of water used. Water known to be of potable quality may be used without testing.

Submit one sample for each lot of hot applied joint sealant used.

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