Comparative analysis of the properties of clays from deposits in Russia and Burundi
https://doi.org/10.20914/2310-1202-2026-2-
Abstract
Clay raw materials are fine-grained sedimentary rocks consisting mainly of clay minerals (montmorillonite, hydromica, kaolinite, etc.), which contain mineral (quartz, feldspar, carbonate, and ferrous) and organic impurities. The paper presents a comparative analysis of the physical and chemical properties of clays from Russian and Burundian deposits. Studying the mineral component of clay raw materials as the most energetically active component allows us to determine the characteristics of the material as a whole. In this work, six samples of clays were examined, and their moisture content, loss on ignition, and chemical and granulometric analyses were conducted. The clays of Burundi are similar in terms of their content of silicon and aluminum oxides, while the clays of Russian deposits differ. Three-component Okhotin diagrams "clay-dust particles-sands" and a concentration diagram Al2O3-SiO2-Fe2O3 + ΣMeO (where ΣMeO is the sum of all other oxides in the calcined state, wt.%) have been constructed. Based on the results of the tests, it has been established that the clays of the Lukoshkinskoye, Vladimirskoye, and Shulepovskoye deposits belong to clay rocks. Chibisovskaya, Rouge, and Noire clays contain a sufficient amount of dusty fractions, which are classified as dusty clays. Lukoshinskaya and Vladimirskaya clays are classified as low-melting clays with a high content of silicon and iron oxides. Shulepovskaya, Chibisovskaya, Rouge, and Noire clays are classified as refractory clays. The applications of these clays have been identified..
About the Authors
I. V. Kuznetsova
Revolution Av., 19 Voronezh, 394036, Russia
Russian Federation
Russian Federation
Cand. Sci. (Chem), assistant professor, Department of inorganic chemistry and chemical technology, Voronezh State University of Engineering Technologies, kuznetsovaiv@mail.ru
F. Butoyi
Voronezh State University of Engineering Technologies
Dr. Sci. (Chem.), master's student, faculty of Ecology and Chemical Technology, Revolution Av., 19 Voronezh, 394036, Russia
E. M. Gorbunova
Voronezh State University of Engineering Technologies
Cand. Sci. (Chem.), assistant professor , Department of inorganic chemistry and chemical technology, Revolution Av., 19 Voronezh, 394036, Russia
L. V. Lygina
Voronezh State University of Engineering Technologies
Cand. Sci. (Tech.), assistant professor, Department of inorganic chemistry and chemical technology, Revolution Av., 19 Voronezh, 394036, Russia
S. S. Shevchenko
Voronezh State University of Engineering Technologies
graduate student, faculty of Ecology and Chemical Technology, Revolution Av., 19 Voronezh, 394036, Russia
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Review
For citations:
Kuznetsova I.V., Butoyi F., Gorbunova E.M., Lygina L.V., Shevchenko S.S. Comparative analysis of the properties of clays from deposits in Russia and Burundi. Proceedings of the Voronezh State University of Engineering Technologies. 2026;88(2):327-332. (In Russ.) https://doi.org/10.20914/2310-1202-2026-2-
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