Abstract: The waste old road concrete can be crashed as recycled aggregate by taking rational techniques. The authors researched the physical and mechanical properties of recycled aggregate in detail through experiments, and based on it, study the its application on base course and the surface course in road pavement. According to the experiments, the conclusions can be easily drawn that recycled concrete aggregate can be used as aggregate in road pavement construction.

Key words: old pavement concrete, recycled aggregate, recycled aggregate cement concrete, recycled aggregate asphalt concrete

摘要： 采用合理的技术将回收的道路废旧砼破碎形成再生集料,可以作为一种再生资源加以利用.作者通过试验详细研究了再生集料的物理性质和力学性质,并对旧砼再生集料在路面基层和面层中的应用进行了研究.试验证明:道路旧水泥砼再生集料能够在道路的改建和新建中应用.

关键词: 道路旧砼, 再生集料, 再生集料水泥砼, 再生集料沥青砼