Distribution of Corrosion Attack in Chloride Exposed Concrete – Summary of Field Observations
Reinforcement corrosion is the main deterioration mechanism in chloride-exposed reinforced concrete (RC) structures. Depending on the moisture level, corrosion might initiate when aggressive agents like chloride ions reach the reinforcement surface. The propagation of active corrosion depends on bot...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Sciendo
2024-12-01
|
| Series: | Nordic Concrete Research |
| Subjects: | |
| Online Access: | https://doi.org/10.2478/ncr-2024-0018 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832570294688022528 |
|---|---|
| author | Baral Kedar Geiker Mette Rica Øverli Jan Arve |
| author_facet | Baral Kedar Geiker Mette Rica Øverli Jan Arve |
| author_sort | Baral Kedar |
| collection | DOAJ |
| description | Reinforcement corrosion is the main deterioration mechanism in chloride-exposed reinforced concrete (RC) structures. Depending on the moisture level, corrosion might initiate when aggressive agents like chloride ions reach the reinforcement surface. The propagation of active corrosion depends on both the moisture level and oxygen availability. Corrosion reduces the crosssectional area and ductility of reinforcement. Depending on the severity of the attack and the corrosion products at the interface, it can lead to cracking and spalling of the concrete, thereby modifying bond-slip behaviour. Knowledge of the distribution of corrosion attack is required for the structural assessment of existing marine-exposed RC structures to extend their service life. This paper summarises observations of corrosion distribution on rebars excavated from RC elements after long-term exposure. |
| format | Article |
| id | doaj-art-3674a0f8987b485daf2318bff94700b0 |
| institution | Kabale University |
| issn | 2545-2819 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Nordic Concrete Research |
| spelling | doaj-art-3674a0f8987b485daf2318bff94700b02025-02-02T15:48:41ZengSciendoNordic Concrete Research2545-28192024-12-0171212513610.2478/ncr-2024-0018Distribution of Corrosion Attack in Chloride Exposed Concrete – Summary of Field ObservationsBaral Kedar0Geiker Mette Rica1Øverli Jan Arve2MSc PhD Student, Department of Structural Engineering, Norwegian University of Science and Technology(NTNU) Richard Birkelandsvei 1A, Trondheim, NorwayPhD Professor, Department of Structural Engineering, NTNU Richard Birkelandsvei 1A, Trondheim, NorwayPhD Professor, Department of Structural Engineering, NTNU Richard Birkelandsvei 1A, Trondheim, NorwayReinforcement corrosion is the main deterioration mechanism in chloride-exposed reinforced concrete (RC) structures. Depending on the moisture level, corrosion might initiate when aggressive agents like chloride ions reach the reinforcement surface. The propagation of active corrosion depends on both the moisture level and oxygen availability. Corrosion reduces the crosssectional area and ductility of reinforcement. Depending on the severity of the attack and the corrosion products at the interface, it can lead to cracking and spalling of the concrete, thereby modifying bond-slip behaviour. Knowledge of the distribution of corrosion attack is required for the structural assessment of existing marine-exposed RC structures to extend their service life. This paper summarises observations of corrosion distribution on rebars excavated from RC elements after long-term exposure.https://doi.org/10.2478/ncr-2024-0018concretereinforcement corrosionchloride-induced corrosiondistribution of attackfield observations |
| spellingShingle | Baral Kedar Geiker Mette Rica Øverli Jan Arve Distribution of Corrosion Attack in Chloride Exposed Concrete – Summary of Field Observations Nordic Concrete Research concrete reinforcement corrosion chloride-induced corrosion distribution of attack field observations |
| title | Distribution of Corrosion Attack in Chloride Exposed Concrete – Summary of Field Observations |
| title_full | Distribution of Corrosion Attack in Chloride Exposed Concrete – Summary of Field Observations |
| title_fullStr | Distribution of Corrosion Attack in Chloride Exposed Concrete – Summary of Field Observations |
| title_full_unstemmed | Distribution of Corrosion Attack in Chloride Exposed Concrete – Summary of Field Observations |
| title_short | Distribution of Corrosion Attack in Chloride Exposed Concrete – Summary of Field Observations |
| title_sort | distribution of corrosion attack in chloride exposed concrete summary of field observations |
| topic | concrete reinforcement corrosion chloride-induced corrosion distribution of attack field observations |
| url | https://doi.org/10.2478/ncr-2024-0018 |
| work_keys_str_mv | AT baralkedar distributionofcorrosionattackinchlorideexposedconcretesummaryoffieldobservations AT geikermetterica distributionofcorrosionattackinchlorideexposedconcretesummaryoffieldobservations AT øverlijanarve distributionofcorrosionattackinchlorideexposedconcretesummaryoffieldobservations |