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J. Korean Ceram. Soc. > Volume 41(2); 2004 > Article
Journal of the Korean Ceramic Society 2004;41(2): 176.
doi: https://doi.org/10.4191/kcers.2004.41.2.176
다공체 소지의 기공 특성 분석-경량골재에서의 기공지수 Ic와 Is에 대하여
권영진, 이기강
경기대학교 첨단산업공학부
Analysis of Pore Characteristics on the Porous Body-Porosity Index of Ic and Is in Light Weight Aggregate
ABSTRACT
EAF (Electric Arc Furnace) dust is classified as special wastes containing heavy metal contaminants may cause to damage an environment such as underground water contamination if they were not treated properly. For reutilizing the EAF dust, the porous body was made from EAF dust/clay composition system, and analyzed pore characteristics. It was found that a light-aggregate body was made up two different microstructures. One was non-black and dense microstructure which located near surface, and the other was black and porous microstructure (black coring) which located inner part. For systematizing the relationship of the black-coring area and the bloating degree, we defined the Ic(core index) and Is(shell index). It was found that the optimal bloating conditions of artificial light-weight aggregate were more than 0.5 of Ic and 0.4 of Is.
Key words: EAF dust, Black coring, Core index, Shell index
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