排水沥青混合料高粘沥青类型的对比和评价研究

摘要

Viscous asphalt is the core of the drainage asphalt mixture material.In this research,the high viscosity asphalt was produced using star-shaped and linear SBS respectively,on this basis,the pavement performance of OGFC-1 3 drainage asphalt mixture was tested in the laboratory.It was found that the pavement performance of asphalt mixture made by the star-shaped SBS was better than that made by the linear SBS through the wheel rutting test,beam bending test,freeze-thaw splitting test and water dispersion test.%高粘沥青是排水沥青混合料的核心材料。文中采用星型和线型 SBS改性沥青制备高粘沥青，在此基础上，室内成型 OGFC-13排水沥青混合料，并对沥青混合料的路用性能进行研究。通过往复车辙轮碾压试验、低温弯曲梁试验、冻融劈裂试验和浸水飞散试验进行对比。结果表明，采用星型 SBS制备的排水沥青混合料各项路用性能均优于线型 SBS排水沥青混合料。