Paving Contractors Present Pervious Concrete
Posted by Jesse Willoughby on Wed, Jan 28, 2009 @ 10:18 AM
What is Pervious?
Pervious Pavement is a unique cement-based concrete product that has a porous structure that allows rainwater to pass directly through the pavement and into the soil naturally. This is achieved without compromising the strength, durability, or integrity of the concrete structure itself.
The pavement is comprised of a special blend of Portland Cement coarse aggregate rock, and water. Once dried, the pavement has a prous texture that allows water to drain through it at the rate of 3 to 5 gallons per minute, per square foot. That's impressive considering tests conclude that a square foot of bahia sod drains at the rate of 2.5 to 3 gallons per minute. This remarkable flow through ratio inspired the phrase "...The pavement that drinks water".
ADVANTAGES:
- Meets Storm Water Management & First Flush Pollution Prevention Criteria (Infiltration BMP)
- Reduce or eliminate storm sewer tie-ins
- Reduced grading reduceds engineering and construction time and expense
- Durable: 30 year + life
- Little to no maintenance
- Doesn't pollute
- No extra SWPP devices
- Light colored surfaces are cooler, safer, energy efficient
- Available in many color choices
http://www.perviouspavement.org/
Pervious Concrete is provided through Graniterock