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논문 기본 정보

자료유형
학술저널
저자정보
양근혁 (경기대) 최동욱 (국립한경대학교)
저널정보
대한건축학회 대한건축학회 논문집 - 구조계 大韓建築學會論文集 構造系 第30卷 第3號
발행연도
2014.3
수록면
57 - 64 (8page)

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초록· 키워드

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The present study established a CO₂ performance evaluation table to assess the lifecycle CO₂ amount of reinforced concrete(RC) structures. As input data necessary for the performance evaluation table, data collected from actual domestic surveys conducted in 2012 were used, which included data on the surrounding environments, lifecycle inventory database, life expectancy of structures, recycling activity scenario, and CO₂ concentration. The performance evaluation table embodies CO₂ emissions (from materials, concrete production, casting, demolition of structures, crushing of waste concrete, and transportation) and CO₂ uptake by concrete carbonation during lifetime of structures and recycled aggregates produced from the demolished concrete. For the case study using the performance evaluation table, structural design was conducted for an RC column and beam in office building with a rahmen system according to the variation of concrete compressive strength, and then lifecycle CO₂ amount was assessed for the determined section size and reinforcing details of the members. Furthermore, the lifecycle CO₂ amount of RC members was examined according to the replacement level of ground granulated blast-furnace slag(GGBS) and fly ash(FA), but at the same compressive strength. The present lifecycle CO₂ assessment for RC member reveals that at the same life expectancy of structures high-strength concrete on the CO₂ reduction is favorable to RC columns, but unfavorable to RC beams. The CO₂ reduction according to the replacement of GGBS and FA is greater in RC columns than in RC beams.

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Abstract
1. 서론
2. 구조물의 전과정 CO₂ 평가절차
3. RC 구조물의 전과정 CO₂ 배출양의 변수연구
4. 결론
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