http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
폴리프로필렌 섬유의 혼입률 변화에 따른 고성능 콘크리트의 특성 및 폭열방지에 관한 연구
황인성 ( Hwang Yin-seong ),김기철 ( Kim Gi-cheol ),한민철 ( Han Min-cheol ),양성환 ( Yang Seong-hwan ),한천구 ( Han Cheon-goo ) 한국구조물진단유지관리공학회 1998 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.2 No.2
The purpose of this study is to investigate spalling resistance of high performance concrete with polypropylene(PP) fiber contents. Experimental results show that flowability and placeability in fresh concrete decrease, whereas air contents keep constant with the increase of PP fiber contents. PP fibers don't influence on the properties of hardened concrete, except for slight increase in compressive strength. When 0.1% of PP fiber are applied in concrete mixture, no spalling is found. Optimum addtion range of PP fiber for spalling resistance and keeping flowability is shown to be 0.1%(vl.).
PP섬유 혼입 및 횡구속재 변화에 따른 고성능 콘크리트의 폭열방지에 관한 실험적 연구
황인성 ( Hwang¸ Yin-seong ),이백수 ( Li¸ Bai-shou ),이병열 ( Lee¸ Byung-yul ),양성환 ( Yang¸ Seong-hwan ),한천구 ( Han¸ Cheon-goo ) 한국구조물진단유지관리공학회 2002 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.6 No.1
This study is an experimental study on the spalling resistance of high performance concrete with PP fiber contents and material for lateral confinement. According to the results, spalling occurs to all specimens that do not contain PP fiber and it is prevented in the specimens containing PP fiber by more than 0.05% after heating, so it shows good effect on the spalling resistance. Variation of material kind for lateral confinement, metal lath shows the best effect on spalling resistance, and glass fiber and carbon fiber do not show good effect on the spalling resistance due to reduction of bond strength by high temperature. While the residual compressive strength shows about 80% of its original strength in the specimen confined laterally by PP fiber contents and metal lath, it decreases a bit in the range of 50~60% of its original strength because of reduction of the bond strength.
폴리프로필렌 섬유의 혼입률 변화에 따른 철근콘크리트 기둥부재의 내화 특성
황인성 ( Hwang Yin-seong ),전선천 ( Jeon Seon-cheon ),이병열 ( Lee Byung-yul ),양성환 ( Yang Seong-hwan ),한천구 ( Han Cheon-goo ) 한국구조물진단유지관리공학회 2000 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.4 No.1
This paper is intended to present the properties of fire resistance of concrete column containing polypropylene fiber, According to the test results, as contents of PP fiber increase, spalled areas and depth of concrete column decrease. As for the effects of W/C, concrete column with 55% of W/C does not show spalling, while takes place in the force of spalling with 35% of W/C. After heating, residual strength of concrete column with 55% of W/C 40% of its original strength regardless of PP fiber contents, in case of 35% of W/C, residual strength after heating is shown to be improved.
W/C 및 폴리프로필렌 섬유의 혼입률 변화에 따른 콘크리트의 폭열 특성
황인성 ( Hwang Yin-seong ),한민철 ( Han Min-cheol ),이병렬 ( Lee Byimg-yul ),양성환 ( Yang Seong-hwan ),한천구 ( Han Cheon-goo ) 한국구조물진단유지관리공학회 1999 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.3 No.1
This paper is intended to investigate the spalling properties of concrete with W/C and polypropylene(PP) fiber contents. According to the experimental results, high strength concrete with W/C 35% and 45% contained no PP fiber take place the surface spalling and the failure of specimens after fire test, while concrete with W/C 55% and 65% does not take place the spalling. Also, concrete contained 0.10% PP fiber does not take place the spalling, regardless of W/C, therefore PP fiber is considered to be played importance roles on the spalling resistance.