Abstract
The effect of highly dispersed amorphous aluminum hydroxides on the hydration of Portland cement was studied by the solid-state 27Al and 29Si NMR spectroscopy. It was established that in the presence of aluminum hydroxides the decrease in the setting time of a cement paste is due to rapid formation of ettringite phase, with contribution of admixture material the main and contribution of aluminum-containing phases at this stage insignificant.
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Original Russian Text © A.S. Brykov, A.S. Vasil’ev, M.V. Mokeev, 2012, published in Zhurnal Prikladnoi Khimii, 2012, Vol. 85, No. 12, pp. 1903–1909.
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Brykov, A.S., Vasil’ev, A.S. & Mokeev, M.V. Hydration of Portland cement in the presence of high activity aluminum hydroxides. Russ J Appl Chem 85, 1793–1799 (2012). https://doi.org/10.1134/S1070427212120014
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DOI: https://doi.org/10.1134/S1070427212120014