Physico-Chemical Modelling of Chloride Migration in Cement-Based Materials Considering Electrode Processes
A multispecies model for chloride migration in cementitious materials was proposed. The model is applied to simulate chloride migration in the concrete submitted to the chloride migration test, considering the electrode processes. These processes are very rarely integrated into the literature, despi...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Materials Proceedings |
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| Online Access: | https://www.mdpi.com/2673-4605/13/1/37 |
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| author | Zine-Eddine Kribes Rachid Cherif Abdelkarim Aït-Mokhtar |
| author_facet | Zine-Eddine Kribes Rachid Cherif Abdelkarim Aït-Mokhtar |
| author_sort | Zine-Eddine Kribes |
| collection | DOAJ |
| description | A multispecies model for chloride migration in cementitious materials was proposed. The model is applied to simulate chloride migration in the concrete submitted to the chloride migration test, considering the electrode processes. These processes are very rarely integrated into the literature, despite their impact on the chloride migration and the electroneutrality in the pore solution of the material. The generation of OH<sup>−</sup> in the cathode and H<sup>+</sup> in the anode allows for the monitoring of the electroneutrality. The modelling considers all the ions of the pore solution. Ion fluxes are calculated using Nernst–Planck equation. The Langmuir model is used to simulate the chloride isotherms. The thermodynamic equilibrium in the material is considered, which reflects the liquid–solid interactions during the migration. The ion profiles with and without considering the electrode processes are presented. |
| first_indexed | 2024-03-11T06:14:08Z |
| format | Article |
| id | doaj.art-5569cbd7c3534a72ad5020128984392b |
| institution | Directory Open Access Journal |
| issn | 2673-4605 |
| language | English |
| last_indexed | 2024-03-11T06:14:08Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials Proceedings |
| spelling | doaj.art-5569cbd7c3534a72ad5020128984392b2023-11-17T12:26:13ZengMDPI AGMaterials Proceedings2673-46052023-02-011313710.3390/materproc2023013037Physico-Chemical Modelling of Chloride Migration in Cement-Based Materials Considering Electrode ProcessesZine-Eddine Kribes0Rachid Cherif1Abdelkarim Aït-Mokhtar2LaSIE, UMR, CNRS 7356, La Rochelle University, 17000 La Rochelle, FranceLaSIE, UMR, CNRS 7356, La Rochelle University, 17000 La Rochelle, FranceLaSIE, UMR, CNRS 7356, La Rochelle University, 17000 La Rochelle, FranceA multispecies model for chloride migration in cementitious materials was proposed. The model is applied to simulate chloride migration in the concrete submitted to the chloride migration test, considering the electrode processes. These processes are very rarely integrated into the literature, despite their impact on the chloride migration and the electroneutrality in the pore solution of the material. The generation of OH<sup>−</sup> in the cathode and H<sup>+</sup> in the anode allows for the monitoring of the electroneutrality. The modelling considers all the ions of the pore solution. Ion fluxes are calculated using Nernst–Planck equation. The Langmuir model is used to simulate the chloride isotherms. The thermodynamic equilibrium in the material is considered, which reflects the liquid–solid interactions during the migration. The ion profiles with and without considering the electrode processes are presented.https://www.mdpi.com/2673-4605/13/1/37durabilitychloride migrationmodellingmultispecies interactionselectrode processes |
| spellingShingle | Zine-Eddine Kribes Rachid Cherif Abdelkarim Aït-Mokhtar Physico-Chemical Modelling of Chloride Migration in Cement-Based Materials Considering Electrode Processes Materials Proceedings durability chloride migration modelling multispecies interactions electrode processes |
| title | Physico-Chemical Modelling of Chloride Migration in Cement-Based Materials Considering Electrode Processes |
| title_full | Physico-Chemical Modelling of Chloride Migration in Cement-Based Materials Considering Electrode Processes |
| title_fullStr | Physico-Chemical Modelling of Chloride Migration in Cement-Based Materials Considering Electrode Processes |
| title_full_unstemmed | Physico-Chemical Modelling of Chloride Migration in Cement-Based Materials Considering Electrode Processes |
| title_short | Physico-Chemical Modelling of Chloride Migration in Cement-Based Materials Considering Electrode Processes |
| title_sort | physico chemical modelling of chloride migration in cement based materials considering electrode processes |
| topic | durability chloride migration modelling multispecies interactions electrode processes |
| url | https://www.mdpi.com/2673-4605/13/1/37 |
| work_keys_str_mv | AT zineeddinekribes physicochemicalmodellingofchloridemigrationincementbasedmaterialsconsideringelectrodeprocesses AT rachidcherif physicochemicalmodellingofchloridemigrationincementbasedmaterialsconsideringelectrodeprocesses AT abdelkarimaitmokhtar physicochemicalmodellingofchloridemigrationincementbasedmaterialsconsideringelectrodeprocesses |