Proceedings of the Korea Concrete Institute Conference (한국콘크리트학회:학술대회논문집)
- 2006.05b
- /
- Pages.405-408
- /
- 2006
Control of Shrinkage Cracking of Cement Composites with Different Length Mixture of PVA Fibers
서로 다른 길이의 PVA 섬유 혼합에 따른 시멘트 복합체의 균열제어 특성
-
Won, Jong-Pil
;
- Kim, Myung-Kyun ;
-
Park, Chan-Gi
;
-
Kim, Wan-Young
;
- Park, Kyoung-Hoon ;
- Jang, Chang-Il
-
원종필
(건국대학교 사회환경시스템공학과)
;
- 김명균 (건국대학교) ;
-
박찬기
(건국대학교)
;
-
김완영
(한국수자원공사 수자원연구원)
;
- 박경훈 (건국대학교) ;
- 장창일 (한국수자원공사 수자원연구원)
- Published : 2006.05.11
Abstract
The purpose of this study was to determine the optimum length distribution of hybrid PVA(Poly vinyl alcohol) fiber. To produce blended PVA fiber length, first the length distribution of PVA fiber in the cement composites were identified in an experimental study based on simplex lattice design. Among the different length distributions investigated, fiber length was found to have statistically significant effect on plastic shrinkage cracking of cement composites. Subsequently, Complex analysis techniques were used to devise an experimental program that helped determine the optimum combinations of the selected fiber length distribution based on plastic shrinkage crack. The optimum blended PVA length ratio was 0.0146% 4mm fiber, 0.0060% 6-mm fiber, 0.0285% 8-mm fiber, and 0.0209% 12-mm fiber.