混凝土路面加铺沥青混凝土面层改造技术研究

Research on the Reconstruction Technology of Adding Asphalt Concrete Surface to Municipal Concrete Pavement

为提高交通行车质量,文中分析了市政混凝土路面加铺沥青混凝土面层改造技术,调查研究区域路面的强度与厚度、弯沉、接缝传荷能力和破损状况,确定研究区域内混凝土路面的反射裂缝是最常见的问题。在断裂力学的基础上,分析反射裂缝产生的原因,并根据分析结果,设计市政混凝土路面加铺沥青混凝土面层改造方案,同时通过马歇尔试验,验证了该技术可以改善路面的使用性能。

In order to improve the quality of transportation,a renovation technology of adding asphalt concrete surface layer to municpi al concrete pavement is proposed.Investigate the strength and thickness,deflection,joint load transfer capacity,and damage status of the pavement in the research area,and determine that reflection carcks on municipal concrete pavement in the research area are teh most common problems.On the basis of fracture mechanics,analyze the causes of reflection cracks and design a municipal concrete pavemen twith asphalt concrete surface layer renovation technology based on the analysis results.The Marshall test verified that the proposed technology improved the performance of the road surface.