The Effects of Water-Reducer on Early-Age Plastic Shrinkage of Concrete

Abstract:

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Water-reducer is one of the dispensable components in modern concrete, can improve the workability and mechanical performance of concrete, and also has an important influence on the plastic cracking resistance of concrete. In this paper, the flat cracking test was used to evaluate the effect of water reducer on the plastic cracking resistance of concrete, meanwhile, capillary pressure; plastic settlement and evaporation rate were also tested. The results showed that water-reducer could improve the plastic cracking resistance of concrete significantly, and the effectiveness of polycarboxylate water reducer were o better than that of wood calcium and naphthalene water reducer.

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Periodical:

Edited by:

Yongbo Shao, Shuguang Hao, Yuping Luo, Jibo Xing and Zhiyong Liu

Pages:

1113-1118

DOI:

10.4028/www.scientific.net/AMM.174-177.1113

Citation:

H. G. Qin et al., "The Effects of Water-Reducer on Early-Age Plastic Shrinkage of Concrete", Applied Mechanics and Materials, Vols. 174-177, pp. 1113-1118, 2012

Online since:

May 2012

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$35.00

[1] Q. Tian. Research for the contraction and its mechanism of low water-binder ratio cement-based materials with high-content mineral admixtures, Nanjing, Southeast University, (2005).

[2] L. Li, W. Sun, Z.Y. Liu. Concrete 12 (2003), pp.33-36.

[3] ASTM C l579-06, ASTM International, United States.

[4] C.W. Miao, Q. Tian, J.P. Liu, W. Sun. Journal of the Chinese Ceramic Society, Vol. 35-4(2007) pp.509-516.

[5] Q. Tian, Y.J. Wang, J.P. Liu, C.W. Miao. An Initial Curing Procedure Based on Pore Water Under Pressure Measurement of Cementitious Materials, in Proceedings for the 13th fiber reinforced concrete and the second conference cross-straits three concrete technology seminar, Oct. 28-29, 2010, pp.659-667.

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