Influence of Superplasticizer Dosage on Rheological Properties of Fresh Cement Pastes and Properties of Hardened Cement Pastes

Author:

Lin Dong1,Lin Yong Quan1,Yin Su Hong1,Wen Zi Yun1

Affiliation:

1. South China University of Technology

Abstract

The strength and shrinkage properties of mortars with different superplasticizer were studied. The results indicated that the saturation point was the best dosage of superplasticizer, at which it not only helped to reach highest paste fluidity with minimum superplasticizer dosage, but also reach the highest mortar strength and comparatively lower shrinkage rate.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Reference5 articles.

1. He Yanshu: Concrete admixtures(Xi'an: Shanxi Scientific and Technology Press, 2003, p.10~21)(in Chinese).

2. Xu Haijun, Wen Ziyun: Cement 2002(10), pp.12-14 (in Chinese).

3. Wen Ziyun, Yang Yibo, in: Guideline on cracking control of reinforced concrete. ( Chemical Industry Press, Beijing 2004, pp.19-38. )(in Chinese).

4. H. Justnes, in: Proceedings of Fourth International Conference, Istanbul, 1992, Vol. II.

5. Yang Yibo, Interpretation of hydration process of concrete based on electrical resistivity measurement, PhD Thesis, South China University of Technology, Guangzhou, China, 2007. (in Chinese). Fig. 14 XRD of sample with 5% KJ-JS Fig. 13 XRD of sample with 5% KJ-JS Fig. 12 XRD of sample with 5% KJ-JS.

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