纤维沥青混凝土疲劳性能对比试验

Contrast Test for Fatigue Property of Fiber Asphalt Concrete

纤维沥青混凝土性能良好,应用广泛。由于路用纤维类型众多,因此选定三点弯曲疲劳试验来评价木质素纤维、矿物纤维、改性纤维和复合改性纤维等四种纤维对AC13沥青混凝土疲劳性能的影响。结果证明,加入纤维可提高沥青混凝土路面疲劳性能,同时为不同条件下纤维沥青混凝土路面的应用和纤维选择提供了研究依据。

Fiber asphalt concrete has good performance and it is widely used.For there are so many kinds of road fibers,this paper uses three-point bending fatigue test to evaluate the influence of lignin fibers,mineral fibers,modified fiber and composite modified fiber on the fatigue property of AC13 asphalt concrete.The result shows that the addition of fiber can improve the fatigue performance of asphalt concrete pavement.At the same time,it can provide reference for application of fiber asphalt concrete pavement under different condition and the selection of fiber.