FRP(Fiber Reinforced Polymer) reinforced lightweight concrete structures can offer corrosion resistance and weight reduction effect simultaneously, so practical use of the structures may be expected afterwards. During that time, a lot of studies for bond behaviors of FRP bar in normal concrete were conducted, but studies for bond behavior of the FRP bar in lightweight concrete are very limited to date. So, bond characteristic between lightweight concrete and helically deformed GFRP bar was investigated in the former study by the authors. In this study, re-consideration of the bond capacity were performed by using results of the former study, results from additional experiment considering variation of the concrete compressive strength, and results from literature survey.

• 장희석(부경대학교 토목공학과 교수, 공학박사) | Jang, Heui-Suk 교신저자
• 김충호(경성대학교 건설환경도시공학부 토목공학 전공 교수, 공학박사) | Kim, Chung-Ho