Proceedings of the Korean Institute of Building Construction Conference (한국건축시공학회:학술대회논문집)

The Korean Institute of Building Construction (한국건축시공학회)
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Carbonation of GGBFS paste and mortar: Effect of γ-Dicalcium Silicate Replacement to Mechanical Properties and Microstructure Characteristics

GGBFS 페이스트 및 모르타르의 탄산 : γ-Dicalcium 규산염 대체가 기계적 특성 및 미세 구조 특성에 미치는 영향

  • Tran, Duc Thanh (Hanyang University, Department of Architectural Engineering) ;
  • Lee, Yun-su (Hanyang University, Department of Architectural Engineering) ;
  • Yan, Sirui (Hanyang University, Department of Architectural Engineering) ;
  • Lee, Han-seung (Hanyang University, Department of Architectural Engineering)
  • Published : 2020.06.12
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Abstract

γ-dicalcium silicate (γ-C2S) is characterized by its strong carbonation reactivity and has the prospect to be utilized as a building material with the added benefit of CO2 capture. This paper aims to point out the impact of γ-C2S on the microstructure characteristics and mechanical properties of GGBFS paste, and mortar samples. Three curing conditions including un-carbonation, natural carbonation, and accelerated carbonation were applied to the research. Besides, hydration products after the carbonation process are also detected. What's more, the carbonation treatment method also meets the requirement of capture more greenhouse gas and recycles the waste products of metallurgy.

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