New issues - Известия Казанского государственного архитектурно-строительного университета.

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First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Kalabina Daria Alekseevna post-graduate student Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Yakovlev Grigoriy Ivanovich doctor of technical sciences, professor Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kuzmina Natalia Vilorevna chief engineer Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kalashnikov Izhevsk State Technical University The organization address: 426069, Russia, Izhevsk, Studencheskaya str., 7
Title of the articleNon-shrinking fluoroanhydrite compositions for flooring
Abstract.Problem statement. The main purpose of the research is to determine the deformative and adhesion properties of fluoroanhydrite compositions, to study the effect of polycarboxylate ethers on the shrinkage characteristics of the compositions during hardening and creep under load. The relevance of the study is associated with the need to increase the use of man-made materials replacing traditional binders based on Portland cement, which contributes to the improvement of the environmental situation in the storage sites of man-made waste and a significant reduction in the cost of the finished product based on fluoroanhydrite. Results. The main results of the study are to determine the shrinkage during hardening and creep under load of fluoroanhydrite compositions; determining the effect of the polycarboxylate plasticizer on their deformation properties; determination of the physical and technical characteristics of the developed formulations. It is shown that the introduction of a polycarboxylate plasticizer improves the physicomechanical and deformative properties of the developed compositions: increasing the strength to 42,5 MPa and 17,5 MPa, reducing the shrinkage deformations of the composition by 10 times, increasing the water resistance of materials by 28 % due to the compaction of the structure. Conclusions. The significance of the results for construction industry consists in the development of non-shrinking compositions for flooring based on fluoroanhydrite binder, which can be used as a heat-insulating layer and a self-leveling fast-setting screed.
Keywords.fluoroanhydrite, perlite, sodium phosphate, polycarboxylate, shrinkage, creep.
For citations:Kalabina D. A., Yakovlev G. I., Kuzmina N. V. fluoroanhydrite, perlite, sodium phosphate, polycarboxylate, shrinkage, creep // Izvestija KGASU. 2021. № 1 (55). Р. 24–38. DOI: 10.52409/20731523_ 2021_1_24.


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