COMPOSITION OF WARM ASPHALT MODIFIERS OR WARM MODIFIED ASPHALTS FOR WARM MIX ASPHALT CONCRETES

摘要

PURPOSE: A composition for a warm asphalt modifier or a warm modified asphalt is provided to prevent the generation of toxic gas by lowering the production temperature of warm ascon by about 20 deg.C compared with that of the already-existing ascon. CONSTITUTION: A composition for a warm asphalt modifier or a warm modified asphalt for the preparation of a warm asphalt concrete mixture comprises 3-100 parts by weight of a viscosity reducing agent which comprises one, two or three selected from the group consisting of paraffin wax, microcrystalline wax carnauba wax, PE wax, PP wax, rosin, rosin salt, EVA wax, ethylene bisstearamide wax, petroleum resin, and starch; and 5-500 parts by weight of an asphalt binder.