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. | Lev V. Kim, Candidate of Technical Sciences, associated professor, advisor of RAACS, professor of Department of Marine Arctic Technologies of Far Eastern Federal University, Vladivostok, Russian Federation. Е-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it , ORCID 0000-0002-3551-164X Sergei N. Leonovich, Doctor of Technical Sciences, professor, foreign academician of RAACS, head of Building Materials and Technology of Construction Department, Belarusian National Technical University, Minsk, Republic of Belarus Е-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it , ORCID 0000-0002-4026-820X |
| Title of the article | Durability of marine reinforced concrete structures |
| Abstract. | Problem statement. The experience of operating oil and gas drilling platforms in the Northern seas has shown that concrete is preferable to metal in terms of durability. Compared to surface structures, degradation from mechanical loadings is higher than from chemical and physical corrosion. However, research on combined corrosion of reinforced concrete in the marine environment is still insufficient. The purpose of the work is to perform a systematic analysis of the durability of marine reinforced concrete structures based on a multiphysical multiscale approach. The objectives of the research are: to assess the current state of the mechanics of reinforced concrete structures durability in the marine environment; to conduct a systematic analysis based on a multiphysical multiscale approach; to develop a general algorithm for assessing combined corrosion. Results. The article provides a brief overview of the works over the past decade on the durability of marine concrete. The system analysis of the durability of reinforced concrete structures is performed using information triads, as a conceptual basis for databases and intelligent systems for diagnosing and predicting combined corrosion. The latter includes physical, chemical and mechanical corrosion, the analysis of which is proposed on the basis of a multiphysical multiscale approach. A general algorithm for assessing combined degradation has been developed, which will allow determining the service life and remaining resource in different periods of the life cycle of structures. Potentials have been introduced for degradation processes of different nature. This makes it possible to determine the effect of combined degradation by superposition of linear potentials. Moisture exchange is the controlling process, while the other processes are subordinate. Moisture is a carrier of aggressive agents, therefore, the degree of corrosion damage can be assessed by the humidity field. Conclusions. The significance of the work lies in the fact that the research results make it possible to create a methodological basis for increasing the service life of marine reinforced concrete structures through computer modeling of concrete degradation and the implementation of regulatory measures. |
| Keywords. | reinforced concrete, sea, durability, corrosion, systematic analysis, resource |
| For citations: | Kim L.V., Leonovich S.N. Durability of marine reinforced concrete structures // News of KSUAE, 2025, № 1(71), p. 92-101, DOI: 10.48612/NewsKSUAE/71.8, EDN: IUWITN |
