Browse > Article

Pot Life of Structural Adhesives for FRP Composite Used in Strengthening RC Members  

Choi, Ki-Sun (한국건설기술연구원 건축구조.재료연구실)
You, Young-Chan (한국건설기술연구원 건축구조.재료연구실)
Kim, Keung-Hwan (한국건설기술연구원 건축구조.재료연구실)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.12, no.3, 2008 , pp. 191-198 More about this Journal
Abstract
Pot life of two-component adhesives such as epoxy resin used in saturating FRP composite is defined as a certain time periods which can guarantee the bond performance and workability of epoxy resin. Therefore, adhesion procedure in strengthening RC members should be completed before chemical hardening is going on at job site. It has been known that there are two types of test method to evaluate the pot life of structural adhesive based on apparent viscosity or temperature change. This study is to verify the test methods how to assess pot life of structural adhesive for FRP composites by means of changing in apparent viscosity and means of exothermic reaction temperature proposed in existing test standards. Results of each test method were compared and analyzed, and reasonable test and evaluation method were suggested.
Keywords
Adhesive; Epoxy resin; FRP composite; Pot life; Saturating;
Citations & Related Records
연도 인용수 순위
  • Reference
1 일본토목학회, '連續纖維しシ一トを用いたコンクリ一ト' 構造物の補修補强指針, 2001
2 유영찬 외, '건축구조물 보수.보강 공법의 성능평가에 관한 연구', 한국건설기술연구원/건설교통부, 2001
3 ACI 440. 2R-02 'Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures', ACI Committee 440
4 유영찬 외, '시설물 보강공법 성능인증을 위한 시험항목 방법 및 평가기준 설정 연구', 건설교통부/한국건설교통기술평가원, 2006
5 首都高速道路公團, '補修用エポクシ樹脂施工基準', 1982, pp. 65
6 유영찬, 최기선, 김긍환, '구조보강용 FRP 함침.접착수지의 사용가능시간 시험방법 비교 연구,' 한국콘크리트학회봄학술발표대회논문집, 제25권 1호, 2006, pp. 297-300
7 EN 14022 'Structural adhesives-Determination of the pot life(working life) of multi-component adhesives'