Hydration Kinetics of Aluminate Cement Containing Magnesium Aluminate Spinel

Abstract:

The hydration heat of aluminate cement containing magnesium aluminate spinel (MA-spinel) and Commercial Lafarge cement are studied. The results show that five stages exist in the hydration processes of both cements, e.g. pre-induction, induction, acceleration, deceleration and stabilization stage. The N values of the two cements are both lower than 1 in acceleration stage, on the contary higher than 1 in stabilization stage. As a result, the hydration is mainly controlled by nucleation reaction and diffusion process in acceleration stage and stabilization stage respectively. The hydration heat of aluminate cement containing MA-spinel is lower than Lafarge cement. Accordingly, the hydration rate of aluminate cement containing MA-spinel is slower than that of Lafarge cement.

• Periodical: Advanced Materials Research (Volumes 295-297)
• Pages: 945-948
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.295-297.945
• Online since: July 2011
• Authors: Bi Ya Cai, Jin Hong Li, Hong Wen Ma, Xiao Qian Jiang
• Keywords: Aluminate Cement Containing Ma-Spinel, Commercial Lafarge Cement, Hydration Heat, Hydration Kinetics

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