Abstract
Currently, the durability of concrete is normalized by indirect indicators—the quality of the materials used, reinforcement and additives, the properties of the concrete mixture and its degree of compaction when molding reinforced concrete structures, the duration and parameters of concrete care. Regulatory documents, depending on the operating environment, regulate the maximum allowable value of W/C, the minimum allowable consumption of cement and the class of concrete for compressive strength. The main structural element of concrete is cement stone, the products of cement hydration provide its adhesive and cohesive properties and form a concrete conglomerate. Low basic calcium hydrosilicates form a cement gel—the densest and most durable component of cement stone. Modification of cement stone with water-reducing additives and microsilicon contributes to the formation of hydrosilicate phases in the form of an uncrystallized gel, a weakly crystallized gel-like C-S-H (I) phase with a ratio of C/S = 1,1–1,3, and individual inclusions of calcium hydroxide are observed.
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Makhmudov, A.M., Trofimov, B.Y., Shuldyakov, K.V., Bokiev, B.R. (2022). Influence of the Quantity and Time of Hardening Ash of Thermal Power Plants Formation of the Structure and Properties of Cement Stone. In: Radionov, A.A., Ulrikh, D.V., Timofeeva, S.S., Alekhin, V.N., Gasiyarov, V.R. (eds) Proceedings of the 5th International Conference on Construction, Architecture and Technosphere Safety. Lecture Notes in Civil Engineering, vol 168. Springer, Cham. https://doi.org/10.1007/978-3-030-91145-4_12
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