Application Research on PVA-ECC in Repairing Airport Pavement

Repair effect by traditional concrete was unsatisfactory on airport pavement due to the weak bonding of old and new concrete pavement and poor crack defects. In this study, which fiber PVA were used as a reinforcing material, it analyzed the repair effect of PVA-ECC with different fiber content in concrete pavement comparatively, established the relationship between the bond strength and fiber content by the linear regression method. It showed that PVA ECC could meet the requirements of airport pavement repair, bond strength of fiber PVA and cement is the major factor in determining the bond strength of new and old concrete, the established formula could be used as reference for the future construction and test for its higher correlation.