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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.