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. | Dmitry E. Barabash, Doctor of Technical Sciences, Military Training and Scientific Center of the Air Force " Air Force Academy named after Prof. Zhukovsky and Yuri Gagarin ", Voronezh, Russian Federation E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it , ORCID: 0000-0001-9438-8082 Nadezhda S. Perova, Candidate of Technical Sciences, Associate Professor, Military Educational and Scientific Center "Air Force Academy named after Professor N.E. Zhukovsky and Yu.A. Gagarin", Voronezh, Russian Federation. E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Regina V. Nikolaeva, 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: 0000-0002-5324-432х |
| Title of the article | Modification of cement-soil systems with water-soluble polymers |
| Abstract. | Problem statement. The construction of highways in remote territories of the Russian Federation requires the import of a huge amount of stone materials, which increases its cost. In these areas, as a rule, cement-reinforced soils are used in the construction of road pavement. The problem of using road pavement with layers of cement-reinforced soils is represented by their gradual destruction due to variable freezing and thawing. One of the ways to increase the durability of such layers of road pavement is to improve the properties of their constituent road-building materials. The aim of the work is to increase the frost resistance of cement-soil layers of highways pavement by adding modifying additives that will reduce or eliminate the negative effect of water on the aggregates of the cement-soil matrix while maintaining the achieved strength. To achieve this goal, the following tasks were formulated: to identify the effect of the Portland cement content on the physical and mechanical properties of cement-soils sealed with polyvinyl alcohol solutions of various concentrations; to conduct a pilot test of the research results during the construction of experimental sections of the highway bypassing Volgograd. Results. To increase the frost resistance of the layers of road pavement, the formulation of a modified cement-soil mixture has been determined. It has been experimentally established that the introduction of cement into the soil together with polyvinyl alcohol as mixing water reduces the water-solid ratio due to plasticization. An increase in the concentration of polyvinyl alcohol in the solution with a simultaneous increase in the amount of cement contributed to an increase in strength and frost resistance coefficient for all the samples studied. Two experimental sections have been built on the bypass of Volgograd with the use of M400 and M500 cements with the sealing of a cement-based mixture with an 8% solution of polyvinyl alcohol. The condition of the experimental sections after two years of operation is assessed as satisfactory. Conclusions. The significance of the results obtained for road construction is to confirm the possibility of using polyvinyl alcohol solutions in a cement-soil mixture in the construction of road pavements, which will increase the efficiency of highway construction in remote territories of the Russian Federation. |
| Keywords. | road pavement, cement-soil mixture, polyvinyl alcohol, frost resistance, water-solid ratio, strength. |
| For citations: | Barabash D.E., Perova N.S., Nikolaeva R.V. Modification of cement-soil systems with water-soluble polymers // News of KSUAE, 2025, No. 3(73), P. 353-363, DOI: 10.48612/NewsKSUAE/73.30, EDN: ZUMSVV |
