Influence of the method of cooling the thermally activated mixture for composite cement on the composition of hydration products of its cement stone
Problem statement. The aim of the study is to determine the effect of fast and slow methods of cooling the artificial mixture after thermal activation on the composition of hydration products of blended cement stone with complex additives of thermally activated mixtures of clays and carbonates. Results. The main results of the study are that the composition of hydration products of blended cement stone with complex additives of thermally activated mixtures was studied depending on the method of cooling the mixture. Conclusions. The significance of the obtained results for the construction industry is that the results allow to determine the conditions for obtaining effective complex additives based on thermally activated mixtures of ubiquitous clays and carbonate rocks for their application in blended Portland cement, and thus to expand the range of the latter. It is found that the preferred method is the fast cooling of the resulting mixture, which contributes to obtain a complex additive with higher pozzolanic properties, compared with the additive obtained by the slow cooling method.