(A) Fine aggregate shall be clean, hard, durable sand; shall range in size from fine to coarse; shall be from an established source approved by the engineer; and shall conform to ASTM Specification C-33 for “Concrete Aggregate” and IDOT Specification § 4110. Sand shall not contain more than 2%, by weight, of shale, coal and soft particles, nor more than 2.5%, by weight, of silt and clay and shall be free from injurious amounts of deleterious substances. Fine aggregate shall be IDOT Gradation 1.
(B) Samples of the fine aggregate shall be submitted to the engineer for approval prior to use if requested.