Rheological Properties of Cement Pastes Containing Metakaoline

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doi:2003.40.12.1229

J. Korean Ceram. Soc. > Volume 40(12); 2003 > Article

Journal of the Korean Ceramic Society 2003;40(12): 1229.
doi: https://doi.org/10.4191/kcers.2003.40.12.1229

메타카올린을 혼합한 시멘트 페이스트의 유동특성

송종택, 최해영

단국대학교 신소재공학과

Rheological Properties of Cement Pastes Containing Metakaoline

ABSTRACT

The utilization of metakaoline as a mineral admixture for cement has received considerable attention in recent years. This paper investigates the rheological properties of cement pastes containing metakaoline in view of fluidity. The rheology of the paste is assessed by using a BROOKFIELD RVDV II + viscometer (SC4-21, 29) having cylindrical spindle. The results show the fluidity of cement pastes with metakaoline is increased by increasing W/S ratio and the dosage of superplastcizer. And also cement pastes with metakaoline as a partial replacement of cement show a dilatant behavior. Dilatancy is heavily influenced by W/S ratio and by the amount of metakaoline. However the thixotropy of the pastes is increased by silica fume.

Key words: Metakaoline, Rheologioal properties, Cement paste, Dilatancy, Superplasticizer