Effect of Triethanolamine Maleate on Cement Hydration

Abstract

Abstract: In order to overcome the negative effect of triethanolamine on the flexural strength and later strength of cement, triethanolamine maleate was synthesized, and the hydration degree, the amount of C-S-H and the 28 d fractal dimension of cement hydration products were studied through BSE and BET analysis. The results show that triethanolamine maleate promotes the hydration of cement, especially the silicate phase in cement. The addition of triethanolamine maleate and polycarboxylic acid water reducer significantly increases the amount of C-S-H in cement hydration products. Triethanolamine decreases the fractal dimension of cement stone at the age of 28 d.The effect of mixing triethanolamine maleate alone and mixing triethanolamine maleate and polycarboxylic acid water reducer together increase the fractal dimension of cement stone at the age of 28 d. It can be seen that triethanolamine maleate has broad application prospects as an enhanced cement early strength agent.

Key words: cement hydration, triethanolamine, triethanolamine maleate, early strength agent, microstructure

CLC Number:

TQ172

JI Xuping, JIANG Yaqing, ZHANG Fengchen, PAN Tinghong. Effect of Triethanolamine Maleate on Cement Hydration[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2020, 39(12): 3770-3774.

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