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 Bulat K. Khusaenov, lead engineer, LLC “Spetsdorproekt”, Kazan, Russian Federation E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it , ORCID: 0009-0005-3992-8505 Emil I. Zagidullin, production and technical department engineer, LLC “STROIDORTEKHNOLOGIYA”, Kazan, Russian Federation E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it , ORCID: 0009-0003-1245-0789 |
| Title of the article | Geopolymer binder based on steel production waste for road construction |
| Abstract. | Problem statement. Due to increasing regulatory requirements for soils in the working layer of highway subgrades, the use of soil stabilization technology in road construction is expanding. However, the production of the main binders (lime, Portland cement) used in this technology is characterized by excessive consumption of energy and resources, as well as negative impact on the environment. It is relevant to develop technologies for stabilizing and strengthening soils using steel production waste, developed on the basis of alkaline modification as a binder. The purpose of the work is to develop a geopolymer binder based on steel production waste for road construction. To achieve the goal, the following tasks were solved: study of the influence of sodium and potassium alkalis on the strength properties of geopolymer materials using binders based on steel production waste; determination of the optimal content of potassium and sodium alkalis for waste activation; study of the influence of hardening time on the strength properties of geopolymer materials. Results. It has been established that the activation of steel production waste with sodium hydroxide affects the maximum increase in strength by 3.5 times at an optimal ratio of 96/4 binder/activator, due to the creation under aggressive conditions of highly alkaline synthesis of gel-like products N-A-S-H, N-S-H, K-A-S-H with the binding characteristics of a three-dimensional frame. The results obtained are a prerequisite for further research of geopolymer binders, including in the composition of clay soils for road construction Conclusions: The significance for the road construction industry lies in increasing the technical and economic efficiency of highway construction through the search for and development of new environmentally friendly, economical types of clinker-free binders, especially based on the recycling of industrial waste. |
| Keywords. | geopolymer, activator, binder, steel production waste, compressive strength |
| For citations: | Vdovin E.A., Stroganov V.F., Bulanov P.E., Khusaenov B.K, Zagidullin E.I. Geopolymer binder based on steel production waste for road construction // News of KSUAE, 2024, № 4(70), p. 275-284, DOI: 10.48612/NewsKSUAE/70.24, EDN: STQCKD |
