中文摘要：

使用三种胶黏剂,分别在干燥的混凝土表面粘贴纤维增强复合材料（FRP）后放入室温环境（平均温度22℃、湿度40%~70%）养护或在潮湿的混凝土表面粘贴FRP后放入潮湿环境（（20±1）℃、湿度（95±3）%）养护,对6组共计30个试件做了碳纤维（CFRP）与混凝土的正拉黏结试验。结果表明：室温环境中粘贴FRP并养护后,不同种类的胶黏剂对CFRP与混凝土的黏结强度影响较小;涂刷胶黏剂时,混凝土表面含水会影响胶黏剂的有效黏结;潮湿养护后,胶黏剂层与混凝土的界面受到不利的影响,各种胶对应试件的正拉黏结强度均有不同程度的下降,破坏形式由混凝土内聚破坏多转变为黏附破坏或者混合破坏;由此可知,在潮湿环境下使用CFRP加固时必须考虑树脂胶强度的折减。

英文摘要：

For a total of 30 specimens（ 6 groups）,three different epoxy resins were used to paste FRP on dry and wet concrete surface and then cured under ambient temperature（ average temperature 22 ℃,40% ~ 70% humidity）or moisture condition（（ 20 ± 1） ℃,（ 95 ± 3） % humidity）, respectively. Portable pull-out test using the standardized procedure was carried out to quantify the residual strength of carbon fibre reinforced polymer（ CFRP）-concrete bonding. The results showed that： the type of epoxy resins rarely affected the bonding strength at ambient temperature; water on concrete surface had negative impact on the bonding between adhesive and concrete when brushing adhesive; after moisture-curing,the interface between adhesive and concrete was further affected by moisture,the pull-off strength degraded in different degrees,and there was a shift in the failure mode from cohesive failure to adhesive-concrete interface separation or a mixed one. Therefore,resin adhesive strength reduction when using CFRP reinforcement in wet environment must be considered.