Porous Asphalt
In 2010, following the installation of pervious concrete at the WSSI office, Chemung Contracting installed 8,120 square feet of porous asphalt parking surface. The porous asphalt was installed in a 4” layer on top of a 12” gravel base course, located near the back of the site, behind the rain garden. A 6’ header curb of standard concrete separates the porous asphalt and pervious concrete parking areas.
Much like pervious concrete, porous asphalt differs from regular asphalt in that its contents include less fine material. Instead, fibers are added that act as a bridge between the large aggregates, adding strength and reducing the risk of cracking. The porous asphalt surface can be swept or plowed as necessary, and can even be salted like regular asphalt to prevent freezing in winter.
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