Density is our Destiny

摘要

Pervious concrete is a mix with 15 percent to 30 percent voids. Our industry has accepted that these values strike a balance between the hydrological and engineering properties of the concrete. When voids are less than 15 percent, the slab will not drain rapidly, but is durable; when greater than 25 percent, the slab will drain rapidly, but will lose some of the critical properties essential for long term durability.