EXPERIMENTAL INVESTIGATIONS ON BOND BEHAVIORS BETWEEN FRP BARS AND CONCRETE UNDER CORROSIVE ENVIRONMENT

摘要：

Experimental investigations on bond behaviours between FRP bars and concrete under the corrosive environments of wet-dry cycling of sodium chloride (NaCl) solution and sodium sulfate (NaSO4) solution,respectively,were carried out in this paper. Pull-out tests on 39 FRP bonded concrete specimens were conducted and the corresponding bond stress-slip curves of FRP bar to concrete interface were obtained. The results indicated that there were no obvious deteriorations on the bond properties between FRP and concrete corroded by NaCl solution compared with that in natural environment; however,the bond performances of specimens were heavily degraded due to the corrosion of NaSO4 solution. Different types of FRP bars lead to different bond properties,among which CFRP bars exhibited the preferable bond behaviours against the corrosive environments.

关键词： FRP bars Bond behaviour Pull-out test Bond-slip relation curves Corrosive environment Deterioration

作者: Li-Li Sui hong-Yuan Zhang Wei-Wen Li Xing Feng

作者单位: Shenzhen Durability Center for Civil Engineering,Shenzhen university,Shenzhen 518060,P.R.China Qingdao Technological University,Qingdao 266033,P.R.China

会议类型: 国际会议

会议名称: The Eleventh International Symposium on Structural Engineering(第十一届结构工程国际研讨会)

会议地点: 广州

会议语种:英文

页码: 908-912

在线出版日期: 2010-12-01（万方平台首次上网日期，不代表论文的发表时间）