BICOMPONENT SYNTHETIC FIBER FOR HOT-MIX ASPHALT, FIBER REINFORCED HOT-MIX ASPHALT MIXTURE AND PRODUCTION METHOD OF THE ASPHALT MIXTURE

摘要

PURPOSE: Bicomponent synthetic fiber for hot-mix asphalt, a fiber reinforced hot-mix asphalt mixture and a production method of the asphalt mixture are provided to produce economical efficiency and good physical property of the mixture. CONSTITUTION: Bicomponent synthetic fiber(10) for hot-mix asphalt is molded by mixing thermoplastic first resin having a melting point of 160~170°C and thermoplastic second resin having the melting point of 250~260°C. The bicomponent synthetic fiber has the tensile strength of 2,500~10,000 kgf/cm^2, tensile elongation of 10~20%, an elastic coefficient of 30,000~300,000 kgf/cm^2, specific gravity of 0.80~0.95, thickness of 0.3~0.5 mm, length of 20~60 mm etc. The bicomponent synthetic fiber has an embossed pattern(12) by pressing the top and the bottom surfaces.