한국건축시공학회:학술대회논문집 (Proceedings of the Korean Institute of Building Construction Conference)
- 한국건축시공학회 2019년도 춘계 학술논문 발표대회
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- Pages.17-18
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- 2019
석고 혼입이 석탄가스화 슬래그의 활성화에 미치는 영향
Effect of Gypsum Mixture on Activation of Coal Gasification Slag
- 발행 : 2019.05.15
초록
In this study, the initial strength reduction of coal gasification slag fine powders was confirmed through previous studies when used in cement formulations. It is also confirmed that the blast furnace slag is mixed with cementitious coal blast furnace slag, which is similar to coal gasification slag, to incorporate gypsum in order to prevent initial strength deterioration. In order to analyze the reactivity of coal gasification slag by desulfurization gypsum, the formation of hydrates and their reactivity at early ages were confirmed by electron microscope. In order to confirm the reactivity, the gypsum samples were prepared with unincorporated type and 2% mixed type. Experimental results showed that 2% of the desulfurized gypsum specimens reacted more actively than the uninjured ones.
키워드