密级配胶粉改性沥青混合料路用性能研究

Research on Pavement Performance of Modified Asphalt Mixture of Close-graded Rubber Powder

完成了AC-13胶粉改性沥青混合料、AC-13基质沥青混合料以及SBS改性沥青混合料的级配设计。通过沥青混合料室内试验对比分析了胶粉改性沥青混合料与基质沥青混合料和SBS改性沥青混合料的性能。结果表明:胶粉改性沥青混合料具有良好的路用性能,能显著改善沥青混合料的高、低温性能和抗水损害性能。

The grading design of modified asphalt mixture of AC - 13 rubber powder, asphalt mixture of AC - 13 matrix asphalt and SBS modified asphalt mixture is finished. Through the laboratory test of asphalt mixture, the contrastive analyses are made on the performance of modified asphalt mixture of rubber powder, mixture of matrix asphalt and SBS modified asphalt mixture. The results show that, the modified asphalt mixture of rubber powder has good pavement performance, which can remarkably improve the high and low temperature performance and water - resistant damage property of asphalt mixture.