Pervious Concrete
Pervious Concrete is a fantastic environmentally green choice for those of you who need a less expensive and environmentally friendly option to manage stormwater. This porous concrete mixture has little to no sand which creates an open-cell Structure that allows rain water to filter right through to the underlying soil! According to the United States Environmental Protection Agency (EPA), stormwater runoff can send as much as 90% of the pollutants (such as oil and other hydrocarbon liquids commonly found on parking lot surfaces) directly into our rivers and streams. The Pervious Concrete filters the water giving enough time for the pollutants to break down before they meet our streams and rivers. The use of Pervious Concrete will reduce the need for large detention ponds, skimmers, pumps, drainage pipes and other stormwater management systems. Expensive irrigation systems can be downsized or even eliminated. Pervious Concrete is a durable material; parking areas properly designed and constructed will last 20-40 years with little or no maintenance. Thus, concrete, conventional or Pervious, is widely recognized as the lowest life cycle cost option available for paving.
When it rains it drains!
A close look at our Pervious Concrete home show piece. The water runs right through it!
Our Pervious Concrete certifications:
The following pictures show the different stages of placement and what the final product looks like during all four seasons.
Here we are placing pervious for a 21' wide emergency access road you can see the roller screed in action.
The surface of fresh Pervious must be covered within 20 minutes of placing it.
We always cross roll through 2 ml poly. This produces the best finish and starts the curing process more quickly. After cross rolling the white 6 ml poly is placed over the top.
The edges are hand tamped to increase duribility.
The tire tracks must be flatted out to keep a uniform pavement thickness.
We are walking right on top of the fresh pervious concrete. It is a very stiff mix.
Pervious covered up with plastic so it can properly cure for 7 days.
Curbing is usually only installed to keep people from driving off the edge of the pavement. Here is the finished product with a concrete curb.
A closer look at the final product. A garden hose at 5 gal/min is equivalent to a 470 inch rain storm. An extremly heavy rain is only 2 inches per hour!
Water run off from the asphalt parking lot disapears into the Pervious Concrete.
A closer picture of the pervious during the same rainstorm. The entire 120' x 21' wide access road pitches towards the curb and has 5' of pitch towards the road. No water remains on the surface and notice no flowing water at curb line.
Snow plows are not an issue for Pervious Concrete.
Snow melt on Pervious Concrete
Snow melt on asphalt running into the Pervious Concrete.
Pervious Concrete can handle heavy loads.
A closer view of the Pervious Concrete in our yard. 80,000 pound trucks enter our yard every day, occasionally 100,000 pound loads go across it!
"Black Ice" ice sheets form on asphalt when the temperature drops.
Extreme close up. The ground below the Pervious doesn't freeze as much as it does under asphalt. The asphalt has heaved up to 1" more than the concrete. The surface looks rough but is surprisingly smooth to the touch.
Contact us so we can assist in designing your Pervious Concrete parking lot, drveway, or side walk.
