Study on Road Performance of High Strength and High Toughness Composite Modified Asphalt Mixture
In this paper,asphalt mixture was prepared by SBS/graphene composite modification and mixed with cement and LDG high-tough-ness asphalt modifier.The road performance of high-strength and high-toughness composite modified asphalt mixture was tested and analyzed.The results showed that the SBS/graphene composite modified asphalt mixture significantly improved the high temperature stability,low tem-perature bending strength,residual stability and residual splitting strength after freezing-thawing,which increased by 7.31%,4.73%,4.01%and 2.17%,respectively,compared with the ordinary asphalt mixture.The addition of cement and LDG high toughness asphalt modifier fur-ther increased by 1.37%,5.18%,5.84%and 5.39%,indicating that the road performance of asphalt mixture can be significantly improved by SBS/graphene composite modification.
Road engineeringHigh-strength and high-toughness composite modified asphaltRoad performance
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