Experimental and numerical simulation of carbonation-induced corrosion in reinforced concretes
Despite the extensive research on carbonation-induced corrosion (CIC), there is still no consensus on the carbonation front location and the reinforcement corrosion onset. In addition, a reliable diffusion-reaction numerical simulation for quantitative prediction of carbonation depth seems to be lac...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-07-01
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| Series: | Case Studies in Construction Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509525002621 |
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| author | Rasoul Banar Faramarz Moodi Ali Akbar Ramezanianpour Amir Mohammad Ramezanianpour Pooria Dashti |
| author_facet | Rasoul Banar Faramarz Moodi Ali Akbar Ramezanianpour Amir Mohammad Ramezanianpour Pooria Dashti |
| author_sort | Rasoul Banar |
| collection | DOAJ |
| description | Despite the extensive research on carbonation-induced corrosion (CIC), there is still no consensus on the carbonation front location and the reinforcement corrosion onset. In addition, a reliable diffusion-reaction numerical simulation for quantitative prediction of carbonation depth seems to be lacking. In this study, normal and pozzolanic concretes, both with and without reinforcing, were exposed to 5 % CO2, 30 ℃, and 65 % RH for up to 12 months. A novel finite element method-based model was simulated using COMSOL Multiphysics software and validated by carbonation depth results of experimental data. Regarding half-cell potential results, consideration of the criterion of significant potential drop instead of the threshold values specified in ASTM C876 allows for determining the onset time of CIC. Among the surveyed approaches for corrosion onset, considering the critical carbonation depth led to a conservative prediction with an average error of about 41 %. However, the presented theoretical models provided a more reliable prediction with an average error of 18 %. By increasing the concrete cover thickness on the reinforcement bars from 1.5 to 2.5 cm, the average initiation time of CIC increased by approximately three times. The section loss rate of reinforcements in 8 % SF and 20 % GGBFS mixtures increased by about 49 % and 86 %, respectively, compared to the control mixture without SCMs. |
| format | Article |
| id | doaj-art-ab66f2f5bcbd485fb0c18e6161cac862 |
| institution | DOAJ |
| issn | 2214-5095 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj-art-ab66f2f5bcbd485fb0c18e6161cac8622025-08-20T02:47:27ZengElsevierCase Studies in Construction Materials2214-50952025-07-0122e0446410.1016/j.cscm.2025.e04464Experimental and numerical simulation of carbonation-induced corrosion in reinforced concretesRasoul Banar0Faramarz Moodi1Ali Akbar Ramezanianpour2Amir Mohammad Ramezanianpour3Pooria Dashti4Department of Civil and Environmental Engineering, Amirkabir University of Technology, Tehran, IranDepartment of Civil and Environmental Engineering, Amirkabir University of Technology, Tehran, Iran; Corresponding author.Department of Civil and Environmental Engineering, Amirkabir University of Technology, Tehran, IranSchool of Civil Engineering, College of Engineering, University of Tehran, Tehran, IranDepartment of Civil and Environmental Engineering, Amirkabir University of Technology, Tehran, IranDespite the extensive research on carbonation-induced corrosion (CIC), there is still no consensus on the carbonation front location and the reinforcement corrosion onset. In addition, a reliable diffusion-reaction numerical simulation for quantitative prediction of carbonation depth seems to be lacking. In this study, normal and pozzolanic concretes, both with and without reinforcing, were exposed to 5 % CO2, 30 ℃, and 65 % RH for up to 12 months. A novel finite element method-based model was simulated using COMSOL Multiphysics software and validated by carbonation depth results of experimental data. Regarding half-cell potential results, consideration of the criterion of significant potential drop instead of the threshold values specified in ASTM C876 allows for determining the onset time of CIC. Among the surveyed approaches for corrosion onset, considering the critical carbonation depth led to a conservative prediction with an average error of about 41 %. However, the presented theoretical models provided a more reliable prediction with an average error of 18 %. By increasing the concrete cover thickness on the reinforcement bars from 1.5 to 2.5 cm, the average initiation time of CIC increased by approximately three times. The section loss rate of reinforcements in 8 % SF and 20 % GGBFS mixtures increased by about 49 % and 86 %, respectively, compared to the control mixture without SCMs.http://www.sciencedirect.com/science/article/pii/S2214509525002621Carbonation depthHalf-cell potentialCorrosion onsetComsol MultiphysicsFinite element methodReinforced concrete |
| spellingShingle | Rasoul Banar Faramarz Moodi Ali Akbar Ramezanianpour Amir Mohammad Ramezanianpour Pooria Dashti Experimental and numerical simulation of carbonation-induced corrosion in reinforced concretes Case Studies in Construction Materials Carbonation depth Half-cell potential Corrosion onset Comsol Multiphysics Finite element method Reinforced concrete |
| title | Experimental and numerical simulation of carbonation-induced corrosion in reinforced concretes |
| title_full | Experimental and numerical simulation of carbonation-induced corrosion in reinforced concretes |
| title_fullStr | Experimental and numerical simulation of carbonation-induced corrosion in reinforced concretes |
| title_full_unstemmed | Experimental and numerical simulation of carbonation-induced corrosion in reinforced concretes |
| title_short | Experimental and numerical simulation of carbonation-induced corrosion in reinforced concretes |
| title_sort | experimental and numerical simulation of carbonation induced corrosion in reinforced concretes |
| topic | Carbonation depth Half-cell potential Corrosion onset Comsol Multiphysics Finite element method Reinforced concrete |
| url | http://www.sciencedirect.com/science/article/pii/S2214509525002621 |
| work_keys_str_mv | AT rasoulbanar experimentalandnumericalsimulationofcarbonationinducedcorrosioninreinforcedconcretes AT faramarzmoodi experimentalandnumericalsimulationofcarbonationinducedcorrosioninreinforcedconcretes AT aliakbarramezanianpour experimentalandnumericalsimulationofcarbonationinducedcorrosioninreinforcedconcretes AT amirmohammadramezanianpour experimentalandnumericalsimulationofcarbonationinducedcorrosioninreinforcedconcretes AT pooriadashti experimentalandnumericalsimulationofcarbonationinducedcorrosioninreinforcedconcretes |