SBS Waterproof Asphalt Concrete Composition Which Comprising SBS and Aggregate-powder of Improved Grain Size for Improving Waterproof and Constructing Methods Using Thereof

摘要

The present invention relates to a waterproof asphalt concrete composition with enhanced waterproof performance and to a construction method thereof, wherein the waterproof asphalt concrete composition comprises: 3-25 parts by weight of styrene butadiene styrene; 5-15 parts by weight of a petroleum resin; 500-2,000 parts by weight of aggregate; 30-150 parts by weight of fine powder aggregate; and 0.1-2 parts by weight of cellulose fibers based on 100 parts by weight of asphalt. The waterproof asphalt concrete composition with enhanced waterproof performance by comprising SBS and fine powder aggregate having an improved aggregate grain size according to the present invention is excellent in waterproof performance, durability, and has no occurrence of plastic deformation, aging, and/or peeling by having high cohesion and high binding power. Also, the composition has a level of PG 82-34, prevents penetrating water and port holes, and facilitates the casting process at low cost.