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J. Korean Ceram. Soc. > Volume 44(9); 2007 > Article
Journal of the Korean Ceramic Society 2007;44(9): 489.
doi: https://doi.org/10.4191/kcers.2007.44.9.489
초미분말 애시를 혼합한 시멘트의 물성
유동우, 변승호, 송종택
단국대학교 신소재공학과
Physical Properties of Ultrafine Ash Blended Cement
Dong-Woo Yoo, Seung-Ho Byun, Jong-Taek Song
Department of New Materials Science and Engineering, Dankook University
Effects of ultrafinely ground ash on the rheological properties of cement paste were investigated. Also compressive strength development and setting time of ultrafine ash blended cement mortar were investigated in the study. A sample with silica fume was included for comparison. According to the results of ultra fine ash blended cement paste in the lower W/B ratio, the fluidity were high, and the setting time was a little retarded. And the compressive strength of ultrafine ash blended mortar was increased in the long term. In the case of hardened cement paste at 28 days, $Ca(OH)_2$ contents was decreased in order of control, ultrafine ash, silica fume blended cement due to difference of the pozzolanic reaction.
Key words: Rheology, Grinding ash, Blended Cement
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