Effect of barium hydrosilicates on the early hydration rate of Portland cement


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We have studied the effect of a barium hydrosilicate-based modifier on the phase composition of Portland cement hydration products. The results demonstrate that the addition of a modifier containing barium hydrosilicates, silicic acid, and calcium carbonate makes it possible to reduce the nucleation rate of crystals of new phases during the induction period of the hydration process, increase alite (3СaO · SiO2) hydration, and reduce the rate of aluminate phase (3CaO · Al2O3) hydration. The use of such a modifier increases the degree of cement hydration and the amount of calcium hydrosilicates and reduces the amount of forming portlandite and ettringite, thereby improving the mechanical properties and durability of the set cement.

作者简介

A. Grishina

Moscow State University of Civil Engineering (National Research University)

编辑信件的主要联系方式.
Email: GrishinaAN@mgsu.ru
俄罗斯联邦, Yaroslavskoe sh. 26, Moscow, 129337

A. Eremin

Moscow State University of Civil Engineering (National Research University)

Email: GrishinaAN@mgsu.ru
俄罗斯联邦, Yaroslavskoe sh. 26, Moscow, 129337

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