Study On Properties of Asphalt Mixture Modified by High Dosage Rubber Powder
In order to strengthen the construction of permanent pavement and improve the performance of asphalt pavement and extend the service life of pavement,30%rubber powder modified asphalt mixture(ARHM20)was studied.The best oil-stone ratio was determined by Marshall test to be 4.8%,and the Marshall stability was 9.61kN,void fraction was 3.3%,and gross volume density was 2.436g/cm3.Through the rut test,the dynamic stability was 6683 times/mm.The maximum flexural tensile strain was 4456,the flexural tensile strength was 13.45MPa,and the bending stiffness modulus was 3089MPa.Based on the ac-tual project,the high content of rubber powder modified asphalt mixture has good pavement performance,and the research results can be popularized in the industry.
high dosagerubber powderroad performancemodification mechanism
万方数据
维普
