Sand

Clean, washed, sand, free of toxic materials Coarse concrete sand, ASTM C33/C33M Fine Aggregate, with a Fines Modulus Index between 2.8 and 3.2. Sand shall be clean, sharp, free of limestone, shale and slate particles. Manufactured coarse sand shall not be permitted. (Jen: WHY?) pH: ≤ 7.0

Particle size distribution

Sieve	Percent passing
9.5 mm	100
4.75 mm (No.4)	95-100
2.36 mm (No.8)	80-100
1.18 mm (No.16)	50-85
0.60 mm (No.30)	25-85
0.30 mm (No.50)	5-30
0.15 mm (No.100)	0-10
0.75 mm (No.200)	≤ 3

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Mineral particles which are smaller than 2 mm, and which are free of appreciable quantities of clay and silt. Coarse sand usually designates sand grains with particle size between 0.2 and 0.02 mm.

A broad category of particulate material used in construction, including sand, gravel, crushed stone, slag, recycled concrete and geosynthetic aggregates, and available in various particulate size gradations.

Soil particles with a diameter less than 0.050 mm.

Mineral particles which are smaller than 2 mm, and which are free of appreciable quantities of clay and silt. Coarse sand usually designates sand grains with particle size between 0.2 and 0.02 mm.