AGG_BEDDING_2_pages.doc

dog town boat ramp AGGREGATE bedding material

PART 1 - GENERAL

1.1 SUMMARY

A. The work of this section consists of furnishing an aggregate to fill the voids of an articulating concrete block revetment mat system.

1.2 SUBMITTALS

A. One copy of certified weight tickets for each load of aggregate delivered to project site.

B. Materials shall be obtained from a commercial source, submit certification from the supplier certifying that aggregate base course meets the requirements of this section.

C. Submit all Material results directly to Contracting Officer (CO) from testing services, with copy to Contractor.

1.3 QUALITY ASSURANCE

A. Material Test to be the responsibility of the Contractor.

PART 2 - PRODUCTS

1.4 AGGREGATE

A. Clean, hard, durable fragments or particles of crushed stone, crushed slag, or crushed or natural gravel. Materials that break up due to freeze-thaw or wet-dry cycling shall not be used.

B. Coarse Aggregate: AASHTO T96-77, percentage of wear of not more than 50.

C. Material shall be:

1. No larger than 2 ½” in diameter in all dimensions

2. Uniform in size with slight variations acceptable

3. Free of fines

PART 3 – EXECUTION

1.5 COMPACTION

A. Compaction will be assessed visually by the Contracting Officer’s Representative (COR).

B. The material shall be compacted in a manner that does not damage the articulated concrete block revetment mat system in any way.

1.6 SURFACE FINISHING

A. Compacted base course surface shall be smooth and free from waves and other irregularities. Unsatisfactory portions of base course shall be torn up, reworked, relaid, and rerolled, at no additional expense to Government.

1.7 TOLERANCES

A. Width: Plan dimension, plus or minus one inch.

B. Thickness: Plan dimension, plus or minus one-half inch.

1.8 MAINTENANCE

A. Maintain base course in a satisfactory condition until final acceptance.

END OF SECTION

AGGREGATE BASE COURSE