Research on the Pavement Performance of Composite Efficiency Enhanced Asphalt Surface in High Altitude Trunk Line Roads
In order to study the anti-rutting effect of compound synergistic asphalt surface in high altitude area trunk highway,this pa-per uses high temperature anti-rutting performance test and freeze-thaw splitting test respectively to study the change of road per-formance of asphalt mixture mixed with compound synergistic agent on the basis of the mechanism of compound synergistic agent.Fi-nally,the rutting resistance of the compound synergist AC-20 asphalt mixture was analyzed by the field test in the test section.The test results show that:after the asphalt binder is incorporated with the compound synergist,the high temperature rutting resistance of the asphalt mixture is further improved by increasing the viscosity of the asphalt at 60℃;meanwhile,the high temperature viscosity of the asphalt is reduced,thus improving the construction and ease of the asphalt mixture.The high temperature rutting resistance and water damage resistance can be improved to a greater extent by incorporating the compound synergist into the asphalt mixture.
high altitudecompound efficiency enhancedtrunk line roadspavement performancemechanism of action
NETL
NSTL
万方数据
维普
