| 摘要 |
PROBLEM TO BE SOLVED: To provide a soundproof body, which is manufactured by using scrapped-car shredder dust, the cost of which is reduced and which has excellent soundproofness. SOLUTION: A sound-insulating wall 1 is installed along the shoulder of an expressway or the like. A recycled soundproof material 3 formed in a fixed shape, nonwoven fabrics arranged on both surfaces of the recycled soundproof material 3 and a metal plate arranged outside a noncombustible material 4 such as a perforated plate 5 and a nonporous plate 6 or the like are housed into a housing 2 for the sound-insulating wall 1 in the wall 1. A molded form obtained by conducting the molding of melting and solidification or the like to a raw material containing a resin acquired by crushing scrapped-car shredder dust and removing metals, a urethane foam, fibers and a rubber as main components is used as the recycled soundproof material 3. Since the scrapped-car shredder dust differs from normal resins and has soundproofness, noise pollution on a road or the like can be relaxed, and the dust can be recycled.
|
