纤维沥青混凝土动态模量与路用性能研究

采用动态模量试验、间接拉伸疲劳试验和车辙试验研究了掺加木质素纤维、聚酯纤维和玄武岩矿物纤维的沥青混合料的路用性能。结果表明,各种纤维掺入后能增大纤维沥青混合料的动态模量,其中聚酯纤维的增强作用最为显著;同时,掺加各种纤维后沥青混合料的疲劳性能和高温抗车辙性能也得到明显改善。

Study on Dynamic Modulus and Road Properties of Fiber Reinforced Asphalt Concrete

This parper reseached the mixing lignin fibers,polyester fibers and basalt mineral fiber asphalt pavement performance by dynamic modulus test,indirect tensile fatigue test and track test.The results show that,after incorporation of a variety of fibers can increase the fiber asphalt mixture dynamic modulus,which polyester fibers to enhance the most significant role;the same time,after mixing a variety of fiber fatigue performance of asphalt mixture rutting resistance and high temperature performance has also been significantly improved.