Rubber-Plastic Alloy For Warm Mix Asphalt Mixture and Method for Manufacturing The Same

摘要

The present invention disclosed a rubber-plastic alloy for a warm mix asphalt mixture and a method for manufacturing the same. The warm mix rubber-plastic alloy is consisted of 5%-30% plastic, 70%-95% crumb rubber, and cracked wax and rubber oil, the summed amount of which comprises 10%-50% of the summed amount of the plastic and the crumb rubber. The manufacturing method comprises extruding the plastic, the crumb rubber, the cracked wax, and the rubber oil at suitable ratio via a single screw extruder, and pelleting via a water-cooled die-face cutter. The use comprises mixing the rubber-plastic alloy with a hot mineral material in an asphalt mixture mixer, and then liquid asphalt matrix is pumped into the mixer via an asphalt pump to provide a warm mix rubber-plastic modified asphalt mixture having excellent performance. The warm mix rubber-plastic alloy is applied for modifying an asphalt mixture to an effect equivalent to that can be achieved by a wet method, and has the advantages of simple production process, low energy consumption, continuous production, direct use, and free of the defects of high energy consumption and smoke pollution existing in a wet rubber asphalt method.