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*Sand manufactured from crushed recycled glass is available locally, and is a viable alternative.
*The pH of the sand shall be ≤ 7.0.
*The pH of the sand shall be ≤ 7.0.
*Manufactured sand from limestone or dolostone parent material is not acceptable.
*Manufactured sand from limestone or dolostone parent material is not acceptable.
−*The coarse sand shall have a fineness modulus index between 2.8 and 3.1 according to [https://www.astm.org/Standards/C33 ASTM C33/C33M], or otherwise meet the gradation below.
*The coarse sand shall have a fineness modulus index between 2.8 and 3.1 according to [https://www.astm.org/Standards/C33 ASTM C33/C33M], or otherwise meet the gradation below.