Influence of Polyester Fiber on High-temperature Performance of Permeable Asphalt Mixture
To investigate the influence of polyester fibers on the high-temperature performance of permeable asphalt mixtures,the high-temperature performance of permeable asphalt mixtures with different polyester fiber additions[0%,0.2%,0.3%,0.4%,0.5%(mass fraction)]was evaluated using Marshall stability and rutting dynamic stability.Adding different amounts of polyester fibers to the permeable asphalt mixture to prepare polyester fiber permeable asphalt mixture,Marshall stability test and rutting dynamic stability test were conducted on the permea-ble asphalt mixture specimens.By analyzing and comparing the experimental results,it can be concluded that:adding an appropriate amount of polyester fiber can effectively improve the Marshall stability and rutting stability of permeable asphalt mixtures;the polyester fiber with a 0.4%content has a significant improvement in the high-tem-perature performance of permeable asphalt mixtures,and it is not advisable to add more than 0.4%polyester fiber.
permeable asphalt mixturehigh temperature performancepolyester fiberMarshall stabilitydynamic stability
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