Want to learn more about Permapave? Please click on the link below to download a PDF data sheet that includes some facts, and technical specs about Permapave. Installation instructions for Permapave's pavers are included as well.
Technical Data
Product Description
A Unique stone substrate specifically engineered to allow water flow through the total surface area of the pavement. Permapave porous segmental pavements are ideally suited as a practical long term alternative to porous concrete.
Sizes
- 3.5” x 8” x 2“
- 3.5” x 8” x 4”
- 8” x 8” x 2”
- 8” x 8” x 4”
- 12” x 12” x 2“
- 12” x 12” x 4”
- 16” x 16” x 2”
- 16” x 16” x 4”
Other sizes can be produced, depending on quantity.
Porosity
Permapave porous pavers have a flow through rate of up to 1.5 gallons per second per square foot, depending on the size of stone.
Manufacturing compliance
Permapave pavers are a new technology and to date there is no standard written for them. The Permapave matrix contains voids, similar to porous concrete, and therefore current standard test methods are not applicable. However, Permpave pavers will attain a confined compressive strength of between 4,000 and 6,000 lbs per square inch. Permapave pavers comply with ASTM C67 Freeze/Thaw requirements. Permapave pavers are unaffected by salt and UV.
Percentage of Impervious Pavement to Permapave
Pavements may require as little as 30% of Permapave Pavers to be classified as permeable. The exceptionally high porosity allows water captured from large areas of surrounding impervious pavements to be dispersed through smaller areas of Permapave pavers. Capture rates are generally unaffected by gradient.
Cleaning
Typically Permapave pavers may need to be cleaned periodically, by mechanical vacuum. Frequency of cleaning is dependant on the contaminant profile of the area of installation. Typically, pavers in a household installation may only require cleaning after 10 to15 years.
