Mechanical Properties of Graphite-Carbon Fiber Composite Conductive Asphalt Concrete
To solve the problem of poor road performance of traditional conductive asphalt concrete,composite conductive asphalt concrete was prepared by using graphite and carbon fiber,and the mechanical properties of ordinary asphalt concrete,graphite conductive concrete,and composite conductive concrete were compared and studied through dynamic creep test,Overlay Tester test,and immersion Marshall test.The results showed that under the same load condition,the graphite-carbon fiber composite conductive concrete had the lowest cumulative creep strain ratio and the creep rate in the dynamic stable stage,and did not enter the failure stage within the loading times,indicating that it had excellent high-temperature stability.The number of anti-cracking cycles and total fracture energy of the graphite-carbon fiber composite conductive concrete were higher than those of graphite conductive concrete and ordinary asphalt concrete,meaning the composite conductive concrete had the optimal anti-cracking performance and could effectively delay the expansion of reflection cracks.The graphite hurt the water stability of the asphalt concrete,while the residual stability ratio and freeze-thaw splitting strength ratio of graphite-carbon fiber composite conductive concrete were similar to those of ordinary asphalt concrete,which could meet the technical requirements of the industry specification.
万方数据
维普
