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논문 기본 정보

자료유형
학술저널
저자정보
G. M. Kim (Korea Advanced Institute of Science and Technology) J. G. Jang (Korea Advanced Institute of Science and Technology) Faizan Naeem (Korea Advanced Institute of Science and Technology) H. K. Lee (Korea Advanced Institute of Science and Technology)
저널정보
한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.9 No.3
발행연도
2015.9
수록면
283 - 294 (12page)

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초록· 키워드

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In the present study, a porous concrete with alkali activated slag (AAS) and coal bottom ash was developed and the effect of carbonation on the physical property, microstructural characteristic, and heavy metal leaching behavior of the porous concrete were investigated. Independent variables, such as the type of the alkali activator and binder, the amount of paste, and CO₂ concentration, were considered. The experimental test results showed that the measured void ratio and compressive strength of the carbonated porous concrete exceeded minimum level stated in ACI 522 for general porous concrete. A new quantitative TG analysis for evaluating CO₂ uptake in AAS was proposed, and the result showed that the CO₂ uptake in AAS paste was approximately twice as high as that in OPC paste. The leached concentrations of heavy metals from carbonated porous concrete were below the relevant environmental criteria.

목차

Abstract
1. Introduction
2. Experimental Program
3. Results and Discussion
4. Concluding Remarks
References

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