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通过对旧水泥混凝土路面沥青混凝土加铺层反射裂缝形成机理分析,在旧水泥混凝土路面与沥青混凝土加铺层之间设置了薄沥青混凝土应力吸收层。经工程实例应用,设置应力吸收层的沥青混凝土加铺层,在温度及荷载周期性反复作用下具有较强的抗反射裂缝能力,为旧水泥混凝土路面改造工程提供参考。
Through the analysis of formation mechanism of reflective cracks in asphalt concrete overlay on old cement concrete pavement, a thin asphalt concrete stress absorption layer is set between the old cement concrete pavement and asphalt concrete overlay. Through the application of the engineering example, the asphalt concrete overlay with stress absorption layer is set up, which has strong anti-reflective cracking ability under the repeated action of temperature and load. It provides a reference for the reconstruction of old cement concrete pavement.