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Title |
A Study on the Cementitious Materials as Carbon Capture Materials-Micro-Structure Change by Carbonation Curing
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Authors |
문은진(Eun-Jin Moon) ; 김상준(Sang Jun Kim) ; 박홍기(Hong Gi Park) ; 최영철(Young Cheol Choi) |
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DOI |
https://doi.org/10.11112/jksmi.2018.22.6.123 |
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Keywords |
탄소포집 ; 고로슬래그 미분말 ; 유동층보일러애시 ; 미세구조 Carbon capture ; GGBFS ; CFBC ; Micro-structure |
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Abstract |
Recently, there has been a growing interest in the study of treatment of CO2 generated by industrial activities and resource recycling of industrial byproducts. The aim of this study is to investigate the applicability of industrial byproducts that can be used as concrete mixed materials by carbonation curing. For this purpose, the physical and chemical changes of the pastes with research cement(RC), blast furnace slag powder (GGBFS) and circulating fluidized bed combustion ashes (CFBC) were evaluated by carbonation curing. XRD and SEM analyzes were performed to investigate micro-structural changes. As a result, it was confirmed that calcium carbonate, which is a reaction product produced by carbonation curing, filled the space inside the paste and formed a dense micro-structure. Also, as the CO2 curing time increased, it was confirmed that calcium carbonate crystals were grown together to form a dense micro-structure.
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