Statement Evaluation And Reconstruction Design Research Of Old Cement Concrete Pavement

Based on pavement structure determination characterization and determination degree, the old cement concrete pavements were evaluated in this papery the evaluating standard and way was studied. At the same time, the identifying specifications of cement concrete pavement damage were discussed in detail. According to the investigation of part of cement concrete pavements in Heibei province, the causes of every kinds of determination of cement concrete pavement were analyses Consequently, modulus of resilience of basement of old cement concrete pavement were identified. The old cement concrete pavement抯 bending strength fcm was converted by splitting tensile strength. Finally reconstruction design of old cement concrete pavement was studied, limited solution of double course pavement load stress of three type of added structure course, dividing, coupling and directing, were derived. Accordingly, thickness of every type of reconstruction course were arrived.