Property of Water-Reducing and Crystallization on Superplasticize of the Concrete

Abstract:

In this paper, the effects of the water-reducing agent on the hydration property and the formation of the ettringite crystal of the concrete C3A were studied. Based on the thermometry analysis, the experiments of the effection of the hydration temperature on such concrete with both naphthalene- and polycarboxylate-type superplasticizers were conducted. The results could be drawn that the additives could prevent the slurry being hydrated in 1h, and decrease the hydration temperature. With the increasing of the additives, the hydration-inhibitory action of the additives was improved, too. The effect of the naphthalene- and polycarboxylate-type superplasticizers on the solubility property of C3A was also studied with EDTA titration, and the results showed that they can suppress the crystallization of the ettringite.

• Periodical: Applied Mechanics and Materials (Volumes 357-360)
• Pages: 1171-1175
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.357-360.1171
• Online since: August 2013
• Authors: Zhong Jun Fu, Feng Song, Lu Shan Yu, Hong Wang
• Keywords: Crystallization, Ettringite, Hydration, Superplasticizer

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