INFLUENCE OF WATER IMMERSION ON THE BOND BEHAVIOR BETWEEN CFRP AND CONCRETE SUBSTRATE

摘要：

　　This paper presents an experimental study on the effect of water immersion on the behavior of bond between a CFRP plate and concrete substrate.The results show that the fracture energy was reduced significantly after 6 months immersion in water but it remained close to constant when the immersion time further increased.They also show that the higher the concrete compressive strength,the more significant the deterioration.The failure mode of the CFRP-to-concrete bonded joint in a single shear pull-off test shifted from a concrete cohesion failure to debonding at the primer/concrete interface.Under the microscope,the failure mode in the aged specimens was a combination of mortar cohesion failure and primer-mortar de-bonding failure.

关键词： Water immersion CFRP Concrete Interface

作者: Yunfeng Pan Guijun Xian Jian-Fei Chen Hui Li

作者单位: School of Civil Engineering,Harbin Institute of Technology,Harbin,150090,China School of Natural and Built Environment,Queens University Belfast,UK

会议类型: 国际会议

会议名称: the Sixth Asia-Pacific Conference on FRP in Structures (APFIS2017)(第六届亚太纤维增强复合材料结构工程国际会议暨第十届全国建设工程FRP应用学术交流会)

会议地点: 新加坡

会议语种:英文

页码: 1-5

在线出版日期: 2017-07-19（万方平台首次上网日期，不代表论文的发表时间）