摘要
采用面内剪切试验方法,研究冻融循环作用后的CFRP与混凝土的粘结性能。通过试验旨在了解冻融循环作用对界面耐久性能的影响,为寒冷地区结构加固提供理论依据。试验结果表明:冻融循环作用显著影响界面的破坏形态,并且随着冻融次数的增加,界面粘结强度和初始开裂荷载呈降低的趋势。
Inner shear test method was used to study CFRP-concrete bond behavior under freeze-thaw cycles.Through this test,the influence of freeze thaw cycle to interface durabilities was revealed,and scientific basis for structural reinforcement of cold regions was provided.The tests results indicate that freeze-thaw cycles has significant effects on the failure modes of interface between CFRP and concrete.The bond strength and crack initial load of CFRP-concrete exhibit decreasing trends with an increase in number of freeze-thaw cycles.
出处
《工业建筑》
CSCD
北大核心
2010年第6期9-11,26,共4页
Industrial Construction
基金
国家重大基础研究前期研究专项(2004CCA04100)
