About the authors
| First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address. | Nina N. Morozova, candidate of technical sciences, associate professor, Kazan State University of Architecture and Engineering, Kazan, Russian Federation. Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Evgeny G. Gulyakov, post-graduate student, engineer, Kazan State University of Architecture and Engineering, Kazan, Russian Federation. Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it |
| Title of the article | Properties of concrete based on zeolite-containing binder |
| Abstract. | The improvement of the technical properties of cements and concretes based on them, as the most widely used building materials, leads to their continuous improvement. One of the ways to improve the quality of cements is to dilute it with other materials, which at the same time allows controlling the properties and structure formation of concretes, reduce their cost, increase environmental friendliness and durability. These materials include zeolite-containing minerals. The Republic of Tatarstan has one of the largest industrially developed deposits of natural zeolite-containing rocks in Russia. Their combination with cement expands the raw material base and reduces the clinker dependence of the region. The purpose of the research is to identify and justify the effective use of natural zeolite-containing rocks as an active mineral additive in cement concrete, replacing part of the cement and positively affecting the durability and physical and mechanical properties of concrete. Results. As a result of the research, the activity of zeolite-containing rocks of the Tatarsko-Shatrashanskoye deposit and the Sokirnyanskoye deposit was determined. The specific surface of ground zeolite-containing rocks has been estimated. Tests of cement stone samples with the addition of zeolite-containing rocks for sulfate resistance were carried out, according to the results of which it was found that samples with zeolite-containing rock of the Tatarsko-Shatrashansky deposit have lower values of relative deformations than control and samples with the addition of zeolite-containing rock of the Sokirnyansky deposit. In order to identify patterns in the use of zeolite-containing rocks in the composition of cement-containing materials, it is advisable to evaluate the compositions for contraction shrinkage. As a result, concrete compositions based on a zeolite-containing cement binder were developed, the tests of which showed that the use of the zeolite-containing rock of the Tatarsko-Shatrashansky deposit is an effective way to save the main component in concrete - cement. Conclusions. The value of the revealed results lies in the justification for the use of zeolite-containing rocks as a replacement for part of the cement in the concrete composition, which contributes to the effective use of the most expensive component. At the same time, the physical and mechanical properties of the materials are preserved and the resistance to sulfate corrosion is increased. |
| Keywords. | concrete, active mineral additive, zeolite, cement, pozzolanic activity, sulfate resistance, contraction |
| For citations: | Morozova N.N., Gulyakov E.G. Properties of concrete based on zeolite-containing binder//News KSUAE, 2023 № 2 (64), p. 27-39, DOI: 10.52409/20731523_2023_2_27, EDN: LCQWVC |
