WATERPROOF SHEET AND ITS REGENERATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a waterproof sheet and a regeneration method for it allowing easy regeneration of its waste and preventing adhesion of sand. SOLUTION: This waterproof sheet (asphalt roofing 13) is formed of an asphalt composition including asphalt and resin kneadable at a melting temperature of the asphalt. The resin is a polyolefin resin desirably. Preferably, the asphalt composition includes 30-70 pts.wt. of a resin, 15-30 wt.% of a filler is dispersed in the asphalt composition, and a rugged parts 14 are formed at least on one face of the waterproof sheet. COPYRIGHT: (C)2004,JPO