橡胶沥青应力吸收层性能试验研究

Study on Performance of Stress Absorbing Layer of Rubber Asphalt

为延缓复合式路面沥青面层产生反射裂缝,通常会在沥青加铺层和水泥混凝土路面之间设置应力吸收层。通过复合试件的直接剪切与疲劳试验,对橡胶沥青应力吸收层与其它工程中常用应力吸收层的力学和疲劳性能进行比较和研究,揭示橡胶沥青应力吸收层的性能优势。

In order to reduce reflection crack when applying asphalt pavement on old cement concrete road, a stress absorbing layer is included between asphalt pavement and cement concrete road surface. Via direct shearing and fatigue test of composite specimen, this paper carries out comparison and study on mechanical property and fatigue property between asphalt stress absorbing layer and other common engineering stress absorbing layers, so to demonstrate the performance advantages of rubber asphalt stress absorbing layer.