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J. Korean Ceram. Soc. > Volume 44(2); 2007 > Article
Journal of the Korean Ceramic Society 2007;44(2): 103.
doi: https://doi.org/10.4191/kcers.2007.44.2.103
고로슬래그 분말도가 시멘트 페이스트의 유동특성에 미치는 영향
송종택, 유창달, 변승호1
단국대학교 신소재공학과
1성신양회 기술연구소
Effect of Blastfurnace Slag Fineness on the Rheological Properties of Cement Pastes
Jong-Taek Song, Chang-Dal You, Seung-Ho Byun1
Department of Materials Science and Engineering, Dankook University
1R&D Center, Sung Shin Cement Co. Ltd.
ABSTRACT
In this study, the rheological properties of cement pastes containing blastfurnace slag of different fineness were investigated. The fluidity of cement pastes with low Blaine value blastfurnace slag was increased with decreasing the plastic viscosity and the yield stress of pastes. And the optimum dosage of polycarboxylate type superplasticizer to the cement pastes was confirmed according to the fineness and the replacement ratio of blastfurnace slag. All cement pastes showed the thixotropy behavior. And also it was formed that the segregation range of cement pastes was occurred below $10D/cm^2$ of the yield stress and below 350 cPs of the plastic viscosity by the coaxial cylinder viscometer.
Key words: Rheological properties, Polycarboxylate superplasticizer, Plastic viscosity, Yield stress
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