Journal of the Architectural Institute of Korea Structure & Construction (대한건축학회논문집:구조계)

Architectural Institute of Korea (대한건축학회)
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Life Cycle Assessment for Carbon Emission Impact Analysis of Concrete Mixing Ground Granulated Blast-furnace Slag(GGBS)

고로슬래그미분말의 콘크리트 혼입시 탄소배출영향도 분석을 위한 LCA

  • 김태형 (한양대학교 일반대학원 건축 및 도시환경공학과) ;
  • 태성호 (한양대학교 건축학부) ;
  • 노승준 (한양대학교 일반대학원 건축 및 도시환경공학과) ;
  • 김낙현 (한양대학교 일반대학원 건축 및 도시환경공학과)
  • Received : 2013.07.29
  • Published : 2013.10.25
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Abstract

Concrete produced with admixtures, such as ground granulated blast-furnace slag(GGBS), which has a low $CO_2$ emission base unit, is frequently used in Korea for active studies on the decrease of $CO_2$ emissions in the cement/concrete industry. However, the $CO_2$ emission base unit for admixtures such as GGBS and fly ash(FA) has not yet been developed in Korea. Therefore, this study developed a $CO_2$ emission to meet the domestic situation base unit for GGBS in accordance with the LCA technique in ISO 14044 regulation. Also, GGBS production company was selected in Korea and assessed life cycle $CO_2$ emission. As a result, life cycle $CO_2$ emission of GGBS has been assessed as 0.0418kg-$CO_2/kg$. In total $CO_2$ emission, manufacturing step was the highest percentage and the electric power of the manufacturing step accounted about 43% of the total $CO_2$ emission. And raw material step and transportation step has been 17%, 8% of the total $CO_2$ emission. Also, $CO_2$ emission of GGBS concrete mixture according to increased strength showed a tendency to increase.

Keywords

Acknowledgement

Supported by : 국토교통부

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