Study on the Applicability of Pavement Materials Under High-frequency Canalized Traffic Conditions
Under the heavy and channelized traffic conditions,pavement materials are required to have higher anti rutted performance and excellent road performance.In response to the high-frequency heavy traffic and channelized traffic conditions of Autonomous rail Rapid Transit,comparing many anti-rutting technologies.Represented by high-content anti-rutting agent,high-modulus additive,epoxy asphalt and semi-flexible asphalt mixture,comprehensive evaluation of the anti-rutted and road performance of each materials,then selected the epoxy asphalt and semi-flexible asphalt mixture through the test.Compared with other anti-rutting technologies,the semi-flexible asphalt mixture has excellent performance,with the Dynamic stability reaches 45 000 times/mm,while combine the water stability and low temperature performance.On the basis of excellent high-temperature anti-rutted performance,epoxy asphalt has more advantages of low-temperature performance.Under constant strain control conditions,semi-flexible asphalt mixture has excellent fatigue resistance.