When to Use Pervious Concrete

Association of Construction and Development
September 28, 2012 — 1,284 views  

Pervious concrete is a very useful form of concrete. It is a very porous mixture of concrete used for many different applications such as driveways, parking lots, streets, sidewalks, patios and much more. However, pervious concrete should be used in places where its porous features can be made useful.

When a material is very porous, it means the materials can absorb and release large amounts of water. Pervious concrete is very porous, which means that when it rains much of the water will absorbed by the concrete and released back into the ground instead of having most of it run off of the surface of the concrete. This is beneficial to the environment because the rainwater will be directly fed back into the soil underneath the concrete, which will allow the soil, as well as nearby streams, rivers, ponds and lakes, to stay healthier and free of pollutants. It also helps slow down flooding and reduces the chance of hydroplaning in a car if used for streets. 

Pervious concrete is usually most useful in places that get copious amounts of rain, but not every area that gets a good rain season will have great use of pervious concrete. The northern United States, for example, usually gets quite a bit of rain and would probably find use for pervious concrete. However, using it for streets or driveways may prove to be troublesome. The northern United States also tends to have a decent amount of snow in winter. Plows end up digging up the pervious concrete and sanding and salting the roads ends up clogging the tiny holes in pervious concrete that make it so porous. 

The western United States have found great use for pervious concrete in their roads, sidewalks, driveways and more. It is a great environment to use pervious concrete in because the west gets a lot of rain, but little to no snow in winter. This is especially useful in the west due to their problems with soil and water pollution. 

Though pervious concrete finds more frequent use in areas with heavy rainfall, it is also very useful in areas with low rainfall. When you live in an area with low rainfall, you need to make good use of every raindrop. Implementing pervious concrete into the streets can make good use of every last drop of rain that falls upon the area.

Pervious concrete can be very beneficial as long as you use it in the right areas. Make sure you plan ahead and research exactly how well your area would use pervious concrete before making the decision to use it.

Association of Construction and Development