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. | Evgeniy A. Vdovin, candidate of technical sciences, associate professor, Kazan State University of Architecture and Engineering, Kazan, Russian Federation E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it , ORCID: 0000-0002-0649-4342 Victor F. Stroganov, doctor of chemical sciences, professor, Kazan State University of Architecture and Engineering, Kazan, Russian Federation E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it , ORCID: 0000-0001-9680-6698 Pavel E. Bulanov, candidate of technical sciences, associate professor, Kazan State University of Architecture and Engineering, Kazan, Russian Federation E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it , ORCID: 0000-0002-0149-8854 Daniil R. Vybornov, Master’s student, Kazan State University of Architecture and Engineering, Kazan, Russian Federation E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it , ORCID: 0009-0006-5388-7698 |
| Title of the article | Changes in the ion-exchange complex of stabilized soils in road pavement layers |
| Abstract. | Increasing traffic loads and road traffic intensity, the lack of durable aggregates, and the high cost of transporting them to various regions of the country necessitate the improvement of clay soil stabilization technologies in road construction. One promising approach to improving the efficiency of clay soil stabilization technologies is the use of electrolytes to modify the ion-exchange complex based on the interaction of clay minerals with alkalis and alter the coagulation and sedimentation processes of the colloidal phase of soils, thereby reducing the optimal moisture content and increasing the strength and frost resistance of pavement layer materials. In this regard, the development of a method for modifying stabilized clay soils in pavement layers by altering the ion-exchange complex is relevant. The aim of this work is to study the influence of the “Changes in the Ion-Exchange Complex” modification method on the physical and mechanical properties of stabilized soils in pavement layers. The tasks are to establish the degree of influence of the “Changes in the Ion-Exchange Complex” modification method on the physical and mechanical properties of stabilized clay soils using electrolytes of varying valence; to determine the optimal electrolyte content; to study the effect of the modification method on the pH level of stabilized clay soils; to establish the dependences of the influence of the content of the most effective modifier on the levels of the physical and mechanical properties of stabilized soils. Results. The effective impact of modifying stabilized clay soils on their physical and mechanical properties has been established. The use of electrolytes with lower cationic valence within a single anionic group provides the greatest increase in the alkalinity of the medium and creates more favorable conditions for the interaction of soils with binders. Sodium hydroxide is the most effective of the electrolytes studied. Conclusions. The possibility of using the effective modification method “Changes in the Ion-Exchange Complex” of stabilized clay soils is demonstrated to ensure the required levels of strength and frost resistance for stabilized soils in pavement layers. In road climate zones with frequent seasonal and daily temperature fluctuations, including transitions through 0°C, this method is effective as part of a comprehensive modification program. |
| Keywords. | stabilized soil, clay soil, road pavement, modification method, ion-exchange complex, physical and mechanical properties |
| For citations: | Vdovin E.A., Stroganov V.F., Bulanov P.E., Vybornov D.R. Changes in the ion-exchange complex of stabilized soils in road pavement layers // News of KSUAE, 2025, № 4 (74), p. 278-288, DOI: 10.48612/NewsKSUAE/74.24, EDN: VCGQEM |
