| 논문명 |
박리제에 오염된 철근과 콘크리트의 부착 감소 요인 분석을 위한 실험적 연구 / The Analysis on Cause of Decreased Bond Strength by Form Release Agents between Rebar and Concrete |
| 저자명 |
오동욱(Oh Dong-Uk) ; 김백중(Kim Baek-Joong) ; 최희복(Choi Hee-Bok) ; 이종구(Yi Chong-Ku) ; 강경인(Kang Kyung-In) |
| 발행사 |
대한건축학회 |
| 수록사항 |
대한건축학회논문집 구조계, v.26 n.07 (2010-07) |
| 페이지 |
시작페이지(77) 총페이지(8) |
| ISSN |
12269107 |
| 주제분류 |
재료 |
| 주제어 |
박리제 ; 부착 ; 철근 콘크리트//Form Release Agents(FRA) ; Bond ; Reinforced Concrete |
| 요약2 |
In reinforced concrete work, form release agents(FRA) are used to facilitate removal of forms from hardened concrete. However, it has been reported that FRA accidentally come into contact with rebar, during construction. That may lead to reduction in bond strength between rebar and concrete. Previous study demonstrated reduction in bond strength when steel reinforcement is coated with FRA. In this study mechanism behind the bond strength reduction is investigated using compressive test, x-ray diffractometer(XRD), scanning electron microscope(SEM) for finding the solution of reduction in bond strength. As concrete defiled by aqueous form release agents make weak interface and oily form release agents make oil film and space between rebar and concrete, FRA decreased the bond between rebar and concrete. Therefore, the rebar contaminated by FRA has need to consider anchorage length like epoxy coating rebar. |
| 소장처 |
대한건축학회 |