Studying Radiation-Induced Degradation of Reinforced Concrete Structures: Review and Numerical Analysis of Reinforcement Corrosion Processes in Concrete
This study addresses the operational degradation of reinforced concrete structures of buildings and facilities where radioactive materials and waste are handled, if degradation is caused by the joint effect of ionizing radiation from materials (substances) handled and factors affecting the overall a...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-12-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/14/24/11856 |
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| author | Rustem Omarov Vyacheslav Belov Andrey Morozenko |
| author_facet | Rustem Omarov Vyacheslav Belov Andrey Morozenko |
| author_sort | Rustem Omarov |
| collection | DOAJ |
| description | This study addresses the operational degradation of reinforced concrete structures of buildings and facilities where radioactive materials and waste are handled, if degradation is caused by the joint effect of ionizing radiation from materials (substances) handled and factors affecting the overall aging of concrete, reinforcement bars, and their combination. The research focuses on gamma radiation and its physical, chemical, and mechanical effects, triggering corrosion processes in reinforcement bars during the operation of reinforced concrete structures. Changes in the structural behavior of existing and newly built facilities, where radioactive materials and waste (with a focus on highly and moderately radioactive waste) are handled, must be predictable during the extended period of operation. Prognostication methods and assessment models must be accessible to various specialists, including design engineers. Available software packages and numerical analysis tools are used to devise these methods and models. This research project demonstrates the numerical modeling of electrochemical corrosion triggered by oxygen diffusion in concrete. The COMSOL Multiphysics software package was used to develop a model of a reinforced concrete wall segment. This model was used to analyze and prognosticate electrochemical processes in a structure during its future operation. Results of numerical modeling show that corrosion-triggered changes in the original diameter of reinforcement do not exceed tenths (11.2–12.4%) for the predicted service life of 100 years. Studies should be continued in this direction because such factors as radiolysis, carbonization, radiation heating, and changes in the aggregate can have an adverse effect on structures during their operation. |
| format | Article |
| id | doaj-art-db07a839a04647b79106fffec0050628 |
| institution | DOAJ |
| issn | 2076-3417 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-db07a839a04647b79106fffec00506282025-08-20T02:55:35ZengMDPI AGApplied Sciences2076-34172024-12-0114241185610.3390/app142411856Studying Radiation-Induced Degradation of Reinforced Concrete Structures: Review and Numerical Analysis of Reinforcement Corrosion Processes in ConcreteRustem Omarov0Vyacheslav Belov1Andrey Morozenko2Institute of Hydraulic Engineering and Power Plant Construction, Department of Construction of Thermal and Atomic Power Stations, National Research Moscow State University of Civil Engineering, 26 Yaroslavskoye Shosse, Moscow 129337, RussiaInstitute of Hydraulic Engineering and Power Plant Construction, Department of Construction of Thermal and Atomic Power Stations, National Research Moscow State University of Civil Engineering, 26 Yaroslavskoye Shosse, Moscow 129337, RussiaInstitute of Hydraulic Engineering and Power Plant Construction, Department of Construction of Thermal and Atomic Power Stations, National Research Moscow State University of Civil Engineering, 26 Yaroslavskoye Shosse, Moscow 129337, RussiaThis study addresses the operational degradation of reinforced concrete structures of buildings and facilities where radioactive materials and waste are handled, if degradation is caused by the joint effect of ionizing radiation from materials (substances) handled and factors affecting the overall aging of concrete, reinforcement bars, and their combination. The research focuses on gamma radiation and its physical, chemical, and mechanical effects, triggering corrosion processes in reinforcement bars during the operation of reinforced concrete structures. Changes in the structural behavior of existing and newly built facilities, where radioactive materials and waste (with a focus on highly and moderately radioactive waste) are handled, must be predictable during the extended period of operation. Prognostication methods and assessment models must be accessible to various specialists, including design engineers. Available software packages and numerical analysis tools are used to devise these methods and models. This research project demonstrates the numerical modeling of electrochemical corrosion triggered by oxygen diffusion in concrete. The COMSOL Multiphysics software package was used to develop a model of a reinforced concrete wall segment. This model was used to analyze and prognosticate electrochemical processes in a structure during its future operation. Results of numerical modeling show that corrosion-triggered changes in the original diameter of reinforcement do not exceed tenths (11.2–12.4%) for the predicted service life of 100 years. Studies should be continued in this direction because such factors as radiolysis, carbonization, radiation heating, and changes in the aggregate can have an adverse effect on structures during their operation.https://www.mdpi.com/2076-3417/14/24/11856radiation-induced corrosion of reinforced concreteradiolysiscarbonizationeffect of gamma radiation on reinforced concretenumerical evaluation of radiation-induced corrosion of reinforcement bars in concretefinite element modeling of corrosion |
| spellingShingle | Rustem Omarov Vyacheslav Belov Andrey Morozenko Studying Radiation-Induced Degradation of Reinforced Concrete Structures: Review and Numerical Analysis of Reinforcement Corrosion Processes in Concrete Applied Sciences radiation-induced corrosion of reinforced concrete radiolysis carbonization effect of gamma radiation on reinforced concrete numerical evaluation of radiation-induced corrosion of reinforcement bars in concrete finite element modeling of corrosion |
| title | Studying Radiation-Induced Degradation of Reinforced Concrete Structures: Review and Numerical Analysis of Reinforcement Corrosion Processes in Concrete |
| title_full | Studying Radiation-Induced Degradation of Reinforced Concrete Structures: Review and Numerical Analysis of Reinforcement Corrosion Processes in Concrete |
| title_fullStr | Studying Radiation-Induced Degradation of Reinforced Concrete Structures: Review and Numerical Analysis of Reinforcement Corrosion Processes in Concrete |
| title_full_unstemmed | Studying Radiation-Induced Degradation of Reinforced Concrete Structures: Review and Numerical Analysis of Reinforcement Corrosion Processes in Concrete |
| title_short | Studying Radiation-Induced Degradation of Reinforced Concrete Structures: Review and Numerical Analysis of Reinforcement Corrosion Processes in Concrete |
| title_sort | studying radiation induced degradation of reinforced concrete structures review and numerical analysis of reinforcement corrosion processes in concrete |
| topic | radiation-induced corrosion of reinforced concrete radiolysis carbonization effect of gamma radiation on reinforced concrete numerical evaluation of radiation-induced corrosion of reinforcement bars in concrete finite element modeling of corrosion |
| url | https://www.mdpi.com/2076-3417/14/24/11856 |
| work_keys_str_mv | AT rustemomarov studyingradiationinduceddegradationofreinforcedconcretestructuresreviewandnumericalanalysisofreinforcementcorrosionprocessesinconcrete AT vyacheslavbelov studyingradiationinduceddegradationofreinforcedconcretestructuresreviewandnumericalanalysisofreinforcementcorrosionprocessesinconcrete AT andreymorozenko studyingradiationinduceddegradationofreinforcedconcretestructuresreviewandnumericalanalysisofreinforcementcorrosionprocessesinconcrete |