Pervious Concrete- Multiple Benefits
Ever wonder how big your drainage structures will be? EPA’s regulation hard to meet? We present you with Pervious Concrete. Designed for the construction industry providing multiple benefits: reducing runoff water as a BMP practice and recharging groundwater. Pervious concrete pavement is a unique and effective way to address important environmental issues and support green, sustainable growth.
This pavement technology creates more efficient land use by eliminating the need for retention ponds, swales, and other storm water management devices. In doing so, pervious concrete has the ability to lower overall project costs on a first-cost basis.
Pervious Concrete Composition
Changing the traditional amount of materials used on regular concrete, to form Pervious Concrete, little or no sand is used, allowing to create voids, but with sufficient paste to bind the aggregate particles with the cementious materials.
This material will have voids in order of 15 to 25 percent and flow rates for water will be around 480 in/hour.
Pervious concrete can attain a compressive strength ranging from 400 psi to 4000 psi (2.8 to 28 MPa), although strengths of 600 psi to 1500 psi (2.8 to 10 MPa) are the most used alternatives. Pervious concrete, however, is not specified or accepted based on its strength, as there are not yet standardized test methods.
EPA recommends that pervious concrete pavement be cleaned regularly to prevent reduction in permeability. Cleaning can be accomplished through a vacuum sweeping or pressure washing process.
Pervious Concrete Benefits
Properly managed systems will produce multiple benefits, including economic, environmental and structural. Some of the benefits that you’ll get, include lowering impact fees, reducing the needs of irrigation systems, and low life-cycle costs. Pervious concrete pavement systems provide a valuable storm water management tool under the requirements of the EPA Storm Water Phase II Final Rule. Phase II regulations provides programs and practices to help control the amount of contaminants in our waterways. Other benefits that you’ll get using this type of concrete are: reduce hydroplaning, increased traction on tires, and also presents a high durability and strength, with an estimate life of over 30 years with the proper maintenance.