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블리딩저감용 AE감수제를 사용한 콘크리트의 블리딩 저감 특성
김기훈 ( Ki Hoon Kim ),황인성 ( Yin Seong Hwang ),나운 ( Woon La ),임주혁 ( Ju Hyeuk Im ),한천구 ( Cheon Goo Han ) 한국건축시공학회 2003 한국건축시공학회 학술발표대회 논문집 Vol.3 No.2
This study is intended to investigate the fundamental properties of concrete which AE water reducing agent for reduction of bleeding is used, and the properties of bleeding reduction. According to the results, when the adding ratio of AE water reducing agent for reduction of bleeding increases, a range of normal fluidity and aimed air content are satisfied, setting time is faster than that of normal AE water reducing agent. And bleeding amount decreases, bleeding speed is highest between 60 and 90 min, and sinking depth increases drastically in 60 min. When AE water reducing agent for reduction of bleeding is added, compressive strength shows a slight variation by air content, but there is not a large influence by addition of AE water reducing agent for reduction of bleeding. Synthetically, it proves that AE water reducing agent for reduction of bleeding satisfies aimed air content in the range of normal slump and can reduce only bleeding without quality variation of compressive strength.