MODIFIED ASPHALT CONCRETE COMPOSITION FOR RAILWAY AND CONSTRUCTION METHOD THEREOF

摘要

The present invention provides a modified asphalt concrete composition for railway and a construction method thereof. According to the present invention, the modified asphalt concrete composition comprises with respect to 100 parts by weight of asphalt: 1 to 25 parts by weight of styrene-isoprene-styrene; 1 to 25 parts by weight of hydrogenated petroleum resin; 500 to 2,000 parts by weight of aggregates; 10 to 90 parts by weight of fine powder aggregates; 0.5 to 10 parts by weight of a modifier; 0.5 to 25 parts by weight of ethylene-propylene copolymer; 0.1 to 2 parts by weight of cellulose fiber; and 0.1 to 2 parts by weight of an antioxidant. Accordingly, the modified asphalt concrete composition for railway provides high coagulation force and high binding force, thereby providing effects of good durability and easily performing base pavement on a railway track bed at low cost without easily generating plastic deformation, aging, and/or defoliation.;COPYRIGHT KIPO 2020