Abstract:Aluminum alloy plate has the advantages of high strength, good ductility, good corrosion resistance, which can be used to strengthen concrete structures in damp, cold and harsh environments. However, the interface performance of aluminum alloy plate-concrete is the key factor which affect the effect of concrete reinforced by aluminum alloy plate. Based on this, the interfacial double shear tests of 48 aluminum alloy plate-concrete specimens were completed. The influence of bond thickness of aluminum alloy plate, bond length of aluminum alloy plate and structural adhesive type on the interface failure mechanism, interfacial peeling bearing capacity, bond shear stress and the slip evolution were analyzed. The results show that the peeling capacity of the interface can be effectively improved by increasing the thickness of the aluminum alloy plate, the bonding length of the aluminum alloy plate and using the structural adhesive with low elastic modulus, but the bonding length of the aluminum alloy plate should be controlled within the range of the limited bonding length. At the same time, with the increase of bond length, the slip of specimen increases, and the thicker the bond thickness of aluminum plate, the lower the slip of the specimen. Use double-line model, hyperbolic model, Nakaba model and test results for comparative analysis. The results show that the aluminum alloy plate-concrete bond slip is in good agreement with the curve of the Nakaba model.