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Pervious concrete pavement is a unique cement-based product whose porous structure permits a free passage of water through the pavement into the soil without compromising the pavement’s durability or integrity. This concrete also goes by other names including “permeable” and “enhanced porosity.”
As a generic material, all have been recognized by the U.S. Environmental Protection Agency as a storm water pollution prevention (SWPP) Best Management Practice device.

Pervious Concrete is a zero-slump, no-fines, open-graded material consisting of Portland cement, coarse aggregate, admixtures, and water. The combination of these materials will produce a product that will allow water to pass through it. The void structure is normally between 18-to 25%. Compressive strength designs are in the range of 3000 to 4000 psi.

Drainage rate will vary with aggregate size and density of the mix, but will commonly fall into the range of 12 to 18 gallons per minute, per SF.

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Watsonville, CA 95076
 

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