Concrete Sand is a non-pumpable sand produced at our Santa Cruz Sand Plant. It is surface mined at our Santa Cruz location on Highway 1. Once excavated, the sand is fed to a triple deck screen, with the last screen being ⁷⁄₁₆", and is then delivered to a water classification system. The sand passes through 10 stations where particles are separated by their specific gravity. The water classification system also strips away silt and clay which produces a very clean product.

Concrete sand leaves the water classification system and works its way through a screw conveyor to remove water prior to being dropped onto a stockpile. Finished product is then moved to a nearby site for easy truck access.

Concrete Sand is designed for non-pump concrete applications where concrete is delivered to the job site and tailgated or is used in pre-cast applications including masonry blocks, pipes, panels, fountains and statues. This sand may have a slightly higher water demand than some other sands.

Concrete Sand is readily available and is produced daily. The data below are in percent passing.

	Sieve Size		ASTM Spec. No. C-33		Santa Cruz Concrete Sand
	No. 4 (4.75 mm)		95–100		100
	No. 8 (2.36 mm)		80–100		97
	No. 16 (2.36 mm)		63–98		89
	No. 30 (600 um)		50–85		70
	No. 50 (300 um)		10–30		25
	No. 100 (150 um)		2–10		4
	No. 200		0–5		2.3

For additional information, please contact Mike Munn at 408.487.3112 or mmunn@graniterock.com.