An improver for improving the performance of asphalt mixtures used on road surfaces

摘要

Among them: (a) the weight percentage of natural rubber, ethylene vinyl acetate copolymer, ethylene copolymer and propylene, n (a-b) n-a (a-b) n-a (a-b) n-a copolymer is 10% to 75%, A is equivalent to polystyrene chain, B is equivalent to polystyrene or polyisopropene chain, which may be linear or radial structure, block structure, partial or random, hydrogenated or non hydrogenated, and any supply of mixtures of such polymers; (b) varies from 10% to 75% by weight, resulting from Oil refining, which may be a unit of betun distillation air,Neutral and neutral medium and heavy, the bright stock of the discharge unit, the heavy metal and bright stock extract in the furfur unit, and a mixture of such ingredients in any ingredient; (c) 1% to 75% by weight selected from any grade of Portland cement group, a. Ore powder from limestone, industrial calcium carbonate, basalt, tetrafluorocyanide, fly ash, lime and any form of such load mixture; and (d) an optional binder;