Journal of the Korea Institute of Building Construction (한국건축시공학회지)

The Korean Institute of Building Construction (한국건축시공학회)
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Effect of Partial Replacement of Water with Photosynthetic Bacteria on the Level of CO2 Absorption in Mortar

광합성균을 혼입한 시멘트 모르타르의 CO2 흡수성능에 관한 기초적 연구

  • Joung, Jae-Ho (Department of Architectural Engineering, Korea National University of Transportation) ;
  • Lee, Gun-Cheol (Department of Architectural Engineering, Korea National University of Transportation) ;
  • Yoon, Seung-Joe (Department of Architectural Engineering, Korea National University of Transportation) ;
  • Joe, Jae-Heung (Department of Architectural Engineering, Korea National University of Transportation) ;
  • Choi, Jung-Gu (Department of Architectural Engineering, Korea National University of Transportation)
  • Received : 2014.10.13
  • Accepted : 2014.11.13
  • Published : 2015.02.20
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Abstract

In this research, the $CO_2$ absorption performance of mortar was investigated. The level of $CO_2$ absorption in mortar with various binders including cement and nonsintered cement was examined. As a result for the mortar with photosynthetic bacteria, the compressive strength was similar to the one without the bacteria at early age but decreased at the age of 28 days. However, for the $CO_2$ absorption, with photosynthetic, the performance of the mortar with OPC, and nonsintered cement deceased to 21%(234 ppm) and 19.7%(243 ppm) respectively after 12 hours age.

본 연구에서는 $CO_2$ 흡수형 콘크리트의 개발을 목적으로 광합성균을 혼입한 모르타르의 기초적 특성 및 $CO_2$ 흡수 성능에 대하여 검토하였다. 아울러, 결합재 종류별 $CO_2$ 흡수 가능성을 판단하기 위하여 결합재로서 시멘트 및 비소성 시멘트를 사용하여 그 특성에 대하여 검토하였다. 실험결과, 강도특성은 광합성균의 혼입한 경우 혼입 모르타르에 비해 초기강도는 유사하나 장기강도발현이 저하하는 것으로 나타났다. 그러나, $CO_2$ 농도측정 결과는 광합성균을 혼입한 경우 무혼입에 비해 12시간 후 측정치가 OPC의 경우 약 21%(234 ppm), 비소성시멘트의 경우 약 19.7%(243 ppm) 감소하는 것으로 나타났다.

Keywords

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