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中文摘要：
通过单面剪切试验研究冻融环境下复合板一混凝土界面的退化规律和机理。经过冻融循环（30次）后，界面的极限承载力和断裂能急剧下降，冻融循环次数增加，界面的极限承载力的下降幅度减小，断裂能保持较为稳定。复合板一混凝土体系内含水量增加将加速复合板一混凝土的界面断裂能和极限承载力下降程度。冻融循环后，复合板一混凝土的界面破坏模式由混凝土撕裂转变为混合破坏模式。
英文摘要：
Effects of freeze-thaw cycles on the behavior of bond between CFRP plates and concrete substrate were experimentally investigated by single-shear test. The ultimate bearing capacity and fracture energy of the interface dropped significantly after 30 cycles. With the increasing of freeze-thaw cycles, the ultimate bearing capacity decreased slightly and a stable value of the fracture energy was observed. The more water ingress was in the adhesive/ concrete interface, the more significantly the ultimate bearing capacity and fracture energy decrease. Freeze-thaw cycles altered the debonding mode from cohesive concrete fracture to mix failure mode.
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