Experimental Study on Interface Characteristics of Concrete Pavement Based on the Ordinary Maintenance Technology

Based on the current conventional technology in airport concrete pavement maintenance, we researched interface characteristics of concrete pavement, which handled the boundary with brushing and manual chiseling, bonded with cement paste, cement mortar and cement paste with 10% fly ash in room temperature or freeze-thaw condition. We have got the results which are: (1) In room temperature, roughness and the type of interface binder have an obvious impact on bond performance; (2) In freeze-thaw condition, freeze-thaw resistance of maintenance interface is poor, and interface binder with cement paste is better than which with fly ash.