Quality Management of Old Cement Concrete Pavement Fragmentation Firmness Technology: Based on Ha-da Expressway Maintenance Project

Using the Impact Compactor to deal with the old pavement existent diseases, the old cement concrete fragmentation firmness technology can postpone largely, even avoid the reflective cracking of asphalt overlay. Based on the practical maintenance in Ha-da expressway, in this paper, discussion is made about action principle and construction focus in the old cement concrete fragmentation firmness technology. And its quality management on the maintenance project is investigated uppermost.