Permeable material
Geofoam SP enables the production of pervious cellular lightweight concrete from 20 to 40 lbs./cu.-ft. A permeable, open-cell material, Geofoam SP reduces hydraulic pressure and dead load, stabilizes soil, and filters contaminants from the soil. Applications include sports fields, golf courses, backfill, parking lots, void filling, landscaping, and pavement subbase. Cellular Concrete. 888-235-5015. www.cellular-concrete.com