Specifications include, but are not limited to: Sand supplied shall consist of clean, hard, durable, uncoated particles of quarts or other rock, free from lumps of clay, soft or flaky material, loam or other detrimental material. The same shall contain not more that five percent (5%) of material finer than #200 sieve using AASHTO method T 11. In addition, this sand shall conform to the following gradation requirements: Square Mesh Sieve % Passing By Weight 1/2" 100 3/8" 98 - 100 #4 70 - 100 #50 0 - 40 #100 0 - 15 Material finer than #200 5 max If washed sand is supplied, it shall be stockpiled at least twenty-four (24) hours before use. Sand supplied shall consist of clean, hard, durable, uncoated particles of quarts or other rock, free from lumps of clay, soft or flaky material, loam or other detrimental material. The same shall contain not more that five percent (5%) of material finer than #200 sieve using AASHTO method T 11. In addition, this sand shall conform to the following gradation requirements: Square Mesh Sieve % Passing By Weight 1/2" 100 3/8" 98 - 100 #4 70 - 100 #50 0 - 40 #100 0 - 15 Material finer than #200 5 max If washed sand is supplied, it shall be stockpiled at least twenty-four (24) hours before use.