BioCycle, April 1992 v33 n4 p40(3) 
                New uses for old tires. David Riggle. 
            Abstract: The US discards about 242 million used tires annually, and 
            less than 7% is recycled. The rest are either stockpiled, dumped 
            illegally or landfilled. Fortunately, technology is providing 
            possibilities for lesser tire disposal. Modifying the surface of 
            tires and combining them with commercial polymers produces composite 
            materials. Combining recycled rubber granules with resins produces 
            flooring material. Varied recycling approaches produce artificial 
            tire reefs, tire derived fuel chips, chips for gardening 
            applications, doormats and rubber modified asphalt. 
             
             Article A12509310