한국건설순환자원학회논문집 (Journal of the Korean Recycled Construction Resources Institute)
- 제3권1호
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- Pages.54-64
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- 2007
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- 1975-5201(pISSN)
치환율에 따른 순환골재 콘크리트의 구조성능 분석
Evaluations of Structural Performance of Recycled Aggregate Concrete According to Replacement Ratios
- 남진원 (연세대학교 사회환경시스템공학부) ;
- 김호진 (연세대학교 사회환경시스템공학부) ;
- 김성배 (연세대학교 사회환경시스템공학부) ;
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김장호
(연세대학교 사회환경시스템공학부) ;
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변근주
(연세대학교 사회환경시스템공학부)
- Nam, Jin-Won (School of Civil and Environment Engineering, Yonsei University) ;
- Kim, Ho-Jin (School of Civil and Environment Engineering, Yonsei University) ;
- Kim, Sung-Bae (School of Civil and Environment Engineering, Yonsei University) ;
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Kim, Jang-Ho Jay
(School of Civil and Environment Engineering, Yonsei University) ;
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Byun, Keun Joo
(School of Civil and Environment Engineering, Yonsei University)
- 투고 : 2007.02.07
- 심사 : 2007.03.12
- 발행 : 2007.06.30
초록
This study is a fundamental research in order to establish the design code of recycled aggregate concrete structure. The structural properties of recycled aggregate concrete such as flexure, shear, fatigue, compression, and bond development are experimentally investigated and confirmed. In this study, laboratory-scale reinforced concrete beam, column, and pull-out test specimens using recycled coarse aggregate are manufactured. Then, the structural performances of recycled aggregate concrete according to replacement ratios of recycled coarse aggregate are evaluated. Also, finite element analysis using commercial code DIANA is carried out to predict the test results and the analysis results are compared with test results in this study. Structural test results showed that the structural performances of recycled aggregate concrete specimens with 60% replacement ratio are reduced by approximately 15-20%. These results indicated that the replacement ratio of recycled coarse aggregate within 30% is a suitable to use for structural members. The results of finite element analysis showed that the specimens with 30% replacement ratio possessed similar or more excellent structural performance than normal concrete specimens. However, recycled aggregate concrete with 60% replacement ratio of recycled coarse aggregate must be carefully considered for structural applications due to significant decrease of the failure loads.
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