Application of Modified Asphalt SMA-13 Asphalt Mixture in Reconstruction and Expansion Highway Construction
In order to study the application effect of rubber modified asphalt SMA-13 asphalt mixture in highway reconstruction and expansion projects,this paper takes a high-speed reconstruction and expansion project in Beijing as an example to design the mix ratio of the project modified asphalt SMA-13 asphalt mixture and test the road performance.The results show that the rubber modified asphalt SMA-13 asphalt pavement has good skid resistance,the construction depth is 3 times of the standard value 0.55,the random test points of the compaction degree are higher than 98%,and the longitudinal elevation standard deviation of the flatness is less than 1 mm,and the overall road performance is good.
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