| 초미분말 고로슬래그를 혼합한 시멘트 페이스트의 유동특성 |
| 유창달, 변승호, 송종택 |
| 단국대학교 신소재공학과 |
| Rheological Properties of Cement Paste Containing Ultrafine Blastfurnace Slag |
| Chang-Dal You, Seung-Ho Byun, Jong-Taek Song |
| Department of Materials Science and Engineering, Dankook University |
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| ABSTRACT |
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Rheological properties of cement paste containing ultrafine blastfurnace slag (UBS, $9600cm^2/g$) were investigated by mini-slump test, pH meter, conduction calorimeter and coaxial cylinder viscometer. In order to improve rheological properties of the cement paste, granulated blastfurnace slag (GBS, $3500cm^2/g$) and polycarboxylate type superplasticizer (PC) were also used in this experiment. The fluidity of cement paste containing UBS was decreased. The yield stress and plastic viscosity of cement paste was increased with increasing UBS. But the rheological properties were improved when GBS and PC were added to UBS blended cement paste. In the relationship between the yield stress and the plastic viscosity or the mini-slump value, the yield stress of the cement paste was proportional to the plastic viscosity of it. However the cement paste mini-slump value was in inverse proportional to the yield stress. |
| Key words:
Rheological Property, Yield stress, Shear stress |
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