Composite Cements of Low Water Demand. Possibilities and Prospects of Application in Building Materials

The possibilities of composite cements of low water demand for solving environmental problems, resource conservation and energy consumption in the construction industry are revealed. It is shown that they can be made with a low content of clinker – the main source of carbon dioxide, which leads to a greenhouse effect on the planet. Binders meet the criteria of the best available production technologies with minimal negative impact on the environment. At the same time, in terms of technological and operational-technical indicators, cements of low water demand are significantly superior to ordinary general-construction Portland cements of both Russian and European manufacturers. Depending on the type and hardness of mineral components, chemical additives and grinding procedure, the types of composite cements of low water demand based on carbonate rocks, fly ash and ash slag waste, blast furnace and electrothermophosphoric slags have been expanded. A number of building materials are presented in which they manifest themselves most effectively, such as low-clinker, sand and high-strength concrete, injection and self-leveling dry mixes for repair work. In general, it is shown that in the near future this type of binders should become the main product of the cement industry in Russia and abroad.

O.V. KHOKHRYAKOV, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)

Kazan State University of Architecture and Civil Engineering (1, Zelenaya Street, Kazan, 420043, Russian Federation)

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