West Coast Rubber Recycling processes whole scrap tires to produce tire derived aggregate (TDA), a size specific tire derived material that replaces conventional aggregates, soils and other lightweight fill material in road construction, landfill construction, building construction and industrial site construction projects. Our GroundRubber TDA is produced from 100 percent California scrap tires and meets ASTM D 6270 Standard Practice for Use of Scrap Tires in Civil Engineering.