【作者】 周英武； 王苏岩； 李宏男； 刘贵；

【Author】 Zhou Yingwu,Wang Suyan,Li Hongnan,Liu Gui(State Key Laboratory of Coastal and Offshore Engineering,School of Civil and Hydraulic Engineering of DalianUniversity of Technology,Dalian 116024,China)

【机构】 大连理工大学土木水利学院海岸和近海工程国家重点实验室；

【摘要】 进行了纤维增强复合材料(FRP)关键技术之一——环氧树脂粘结胶的试验研究。首先介绍了粘结胶的发展现状,并通过FRP-高强混凝土界面粘结试验,发现底胶在强化混凝土表面的同时能明显地改善FRP-高强混凝土的粘结性能,指出涂刷底胶与浸渍胶的时间应具有一定的间隔,但不应超出一定的范围;不同粘结胶对温度具有不同程度的敏感性。鉴于国内一些粘结胶产品质量的不稳定性,建议建立一套积极有效的质量监督管理体系,以保证FRP加固混凝土结构的安全投入使用。更多还原

【Abstract】 Research is carried out on the epoxy resin adhesive for FRP which is one of most pivotal technique in the area.The paper has firstly introduced the development of adhesive,and the bond behavior between FRP and high strength concrete through simple face shear type bond test is carried out subsequently.The results indicate that the primer can strengthen the surface of concrete and thus improve the bond behavior between FRP and high strength concrete.The time interval between the primer and the adhesive being gelatinized is of great importance and should not go beyond a certain range.According to the distinct properties of different adhesives,temperature has different influences on the bond strength of the adhesives.Since the quality of some adhesive in the nation during different time is unstable,an effective supervising and managing system is proposed to establish to ensure that the structures strengthened with FRP are safe.更多还原