Study of Calcium Acrylate on Compressive Strength and Hydration Process of Cement

Abstract:

In this paper, the hydration process and strength of calcium acrylate (CA) modified cement under the effects of different additives, such as, initiator-hydrogen peroxide, accelerator-triethanolamine, and cross-linking agent-butyl acrylate, were studied. Through comprehensive analysis, the optimal content of additives of initiator, cross-linking agent, and accelerator is ascertained 3%, 10% and 3%, respectively. On the condition of optimal content of additives and CA, it can be obtained that CA can increase the exothermic rate of cement within one hour and accelerate the exothermic rate in the induction period, shorten the time of the induction period, and speed up the initial setting time of cement. Besides, CA can inhibit the transformation of AFm from AFt, improve the dispersion of cement paste, make later hydration more fully, and promote later strength.

• Periodical: Advanced Materials Research (Volumes 816-817)
• Pages: 161-165
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.816-817.161
• Online since: September 2013
• Authors: Fu Lan Wang, Qi Wang, Peng Song, Zhong Xi Yang, Lei Tian
• Keywords: Additive, Calcium Acrylate, Compressive Strength, Modified Cement

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