沥青路面反复荷载作用面层材料产生疲劳,低温收缩使路面引起缩裂。本文对国产沥青细粒式混凝土材料,进行疲劳和收缩性能试验,以抗力与应力对比关系分析材料受反复荷载作用下动态模量和抗拉强度衰减及其缩裂温度上升的规律。并提出实际行车累积交通量与室内疲劳试验反复弯拉次数二者的关系。 Asphalt pavement fatigue caused by repeated loading of materials, shrinkage caused by low temperature contraction. In this paper, fatigue tests and shrinkage tests were carried out on domestic asphalt fine particle concrete materials. The dynamic modulus and tensile strength decay and the rupture temperature rise of the material under repeated load were analyzed by contrasting the resistance and stress. And put forward the relationship between the accumulated traffic volume of actual traffic and the number of repeated bending and bending in indoor fatigue test.