Specifications include, but are not limited to: 1. Contractor shall submit test results from a certified laboratory demonstrating compliance with these specifications and a certificate of compliance. 2. In addition to initial testing, Contractor shall perform additional gradation tests and furnish results as materials are processed and / or delivered. Frequency of additional testing shall be 1 test per 500 cubic yards. If source of materials should change after completion of original test, a complete set of tests, as required above, shall be performed again. 3. City of Belfast reserves the right to conduct quality control inspection and testing to determine the reliability of the test results and Certificate of Compliance. Materials delivered that do not comply with the specifications and / or certifications shall be removed from the site at no cost to the City of Belfast. Crushed Stone Aggregate Surface Course Material (Half Inch Minus): Aggregate shall consist of hard, durable particles or fragments of crushed stone manufactured from blasted ledge conforming to the following requirements and gradations: Los Angles abrasion, ASTM C 131and C 535 ……………. 50% max.* Fractured faces (one face)…………………………………….... 95% max.* Fracture faces (two faces)……………………………………….. 75% max.* Soundness loss, 5 cycles, ASTM C 88 (magnesium)….. 18% max.* Flat/Elongated length to width > 5 ASTM D4791 …….. 15% max.* *Based on the portion retained on the 3/8” sieve 2. Materials shall be free from organic material and lumps or balls of clay. 3. Materials passing the # 4 sieve shall consist of natural or crushed sand and fine mineral particles. The material including any blended filler, shall have plasticity index of not more than 6 and a liquid limit of not more than 25 when tested in accordance with ASTM D4318.
