Effect of γ-C2S Addition on the Properties of GGBFS Containing Mortar in Accelerated Carbonation Curing

가속 탄화 조건에서 γ-C2S 첨가가 모르타르 함유 GGBFS의 특성에 미치는 영향

  • Published : 2020.11.12

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. The compressive strength of 𝛾-C2S added GGBFS cement mortar is higher compared to without 𝛾-C2S in accelerated carbonation (AC) up to 14 days of curing but once the curing duration is increased, there is no significant improvement in compressive strength. This study suggests that 𝛾-C2S can capture the atmospheric CO2 (mostly generated from cement and metallurgy industries) and utilized in construction.

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Acknowledgement

This research was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (No. 2015R1A5A1037548).