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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한양대학교 세라믹공정연구센터 Journal of Ceramic Processing Research Journal of Ceramic Processing Research 제18권 제3호
- 발행연도
- 2017.3
- 수록면
- 177 - 182 (6page)
- DOI
- http://dx.doi.org/
이용수
초록· 키워드
오류제보하기
Around 39% of domestic power is generated from coal-fired power plants, and coal ash is generated as a by-product. Whilethe amount of domestic coal fly ash is about 8.35 million tons/year, about 80% of which is reported as fly ash (6.84 milliontons) and 20% is bottom ash (1.51 million tons). Generally, fly ash is used for concrete admixture, subsidiary raw materialsof cement fabrication process, etc. However, it is not used in large scale because of its low early-term strength and the problemof lowering the alkaline of concrete. Therefore, this study aims to increase early-term reactivity of fly ash and to increasecement substitution amount by fabricating the energetically modified fly ash (EMFa) through grinding of fly ash.
Experimental results show that the EMFa is more effective in accelerating early-term hydration than when mixed with nongrindingfly ash. Also, when 20% of EMFa was substituted, it showed compressive strength equal to or higher than that ofOPC, and the carbonation resistance was also increased in comparison with that of non-grinding fly ash.
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