User:Sosutherland

Pervious Concrete
Pervious concrete is a mixture of hydraulic cement, coarse aggregates (stone), water and admixtures. Pervious concrete contains little or no sand, and is sometimes referred to as a no-fines concrete.

Stormwater Management is increasingly on people’s minds and Pervious Concrete Pavement is a terrific solution. Pervious Concrete is a product that has 15 to 25% void ratio, made of mostly coarse aggregate, cement and water, and some sand. It drains the water straight through, which replenishes aquifers and diverts water from storm water systems so that it does not have to be collected and treated. Many municipalities’ water treatment systems are at capacity; therefore water diversion is a real cost benefit. It may allow more development in that area or reduce tax burdens. Large retention or detention ponds do not have to be created in any kind of development where Pervious Pavement is used for parking, so all the valuable land is able to be used.

Pervious Concrete is the only permeable paving material that forms a rigid pavement surface, while allowing the passage of stormwater directly through the pavement. By allowing rainfall to pass through the surface, and into the soil below, the entire pavement area can be used as a detention system, which is why the need for separate drainage structures can be eliminated.