Technology transfer

摘要

At least one state has figured out how to preserve deteriorated pavement to provide a smooth, safe, long-lasting surface that reduces traffic noise and tire wear-all while putting millions of scrap tires to good use. It sounds almost too good to be true, but proponents say asphalt rubber allows agencies to do just that. And judging from the Arizona DOT's (ADOT) more than 20 years of experience overlaying asphalt rubber on concrete and asphalt pavements, those proponents are right. One of the main advantages of an asphalt rubber friction course, or ARFC, is its thinness. Just 1 inch needs to be applied over portland cement concrete pavement, and just 'A inch is needed over existing asphalt.