Chloride ingress in de-icing salt-exposed bridge: Numerical modeling and field investigations
This research focuses on assessing the durability of various components of an onshore section of the Original Champlain Bridge in Montreal, specifically in relation to chloride ingress from de-icing salting operations. Chloride penetration in both the original and repaired concrete are both numerica...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-12-01
|
| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509525008010 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1839637894090719232 |
|---|---|
| author | Samaneh Khani David Conciatori Luc Chouinard Benoit Fournier Mohammad Khaleghi Esfahani Abdoul S. Bah Xuande Chen |
| author_facet | Samaneh Khani David Conciatori Luc Chouinard Benoit Fournier Mohammad Khaleghi Esfahani Abdoul S. Bah Xuande Chen |
| author_sort | Samaneh Khani |
| collection | DOAJ |
| description | This research focuses on assessing the durability of various components of an onshore section of the Original Champlain Bridge in Montreal, specifically in relation to chloride ingress from de-icing salting operations. Chloride penetration in both the original and repaired concrete are both numerically modelled and measured. The transport characteristics of repaired and original parts of the concrete were determined using non-destructive air permeability tests and used in the TransChlor® to predict chloride ingress into the air-exposed repaired sections and underlying unrepaired sections over the service life of the bridge. By selecting appropriate boundary conditions, and historical climatic data, the predicted chloride profiles are shown to be a close match to core sample data from both the repaired and unrepaired sections of structural elements. This research proposes a blind a-priori prediction method for analyzing and predicting chloride ingress in ageing concrete structures as opposed to a-posteriori predictions made by matching chloride profiles obtained from cores, which is a common practice in the literature. Furthermore, it was clearly demonstrated that cathodic protection is effective in preventing chloride ingress into concrete. However, the ability to predict chloride ingress in the presence of cathodic protection was identified as a gap in current chloride ingress models such as TransChlor®, and an objective for future research. |
| format | Article |
| id | doaj-art-060d8081c5b44c719e45a54f6c6909c9 |
| institution | Matheson Library |
| issn | 2214-5095 |
| language | English |
| publishDate | 2025-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj-art-060d8081c5b44c719e45a54f6c6909c92025-07-06T04:23:28ZengElsevierCase Studies in Construction Materials2214-50952025-12-0123e05003Chloride ingress in de-icing salt-exposed bridge: Numerical modeling and field investigationsSamaneh Khani0David Conciatori1Luc Chouinard2Benoit Fournier3Mohammad Khaleghi Esfahani4Abdoul S. Bah5Xuande Chen6Department of Civil Engineering and Water Engineering, Université Laval, CanadaDepartment of Civil Engineering and Water Engineering, Université Laval, Canada; Laboratory ICube CNRS UMR 7357, Department of Civil Engineering, INSA Strasbourg, France; Corresponding author at: Department of Civil Engineering and Water Engineering, Université Laval, Canada.Department of Civil Engineering, McGill University, CanadaDepartment of Civil Engineering and Water Engineering, Université Laval, CanadaDepartment of Civil Engineering and Water Engineering, Université Laval, CanadaDepartment of Civil Engineering and Water Engineering, Université Laval, CanadaDepartment of Civil Engineering and Water Engineering, Université Laval, Canada; Université du Québec à Rimouski, Département Génie Civil, Rimouski, CanadaThis research focuses on assessing the durability of various components of an onshore section of the Original Champlain Bridge in Montreal, specifically in relation to chloride ingress from de-icing salting operations. Chloride penetration in both the original and repaired concrete are both numerically modelled and measured. The transport characteristics of repaired and original parts of the concrete were determined using non-destructive air permeability tests and used in the TransChlor® to predict chloride ingress into the air-exposed repaired sections and underlying unrepaired sections over the service life of the bridge. By selecting appropriate boundary conditions, and historical climatic data, the predicted chloride profiles are shown to be a close match to core sample data from both the repaired and unrepaired sections of structural elements. This research proposes a blind a-priori prediction method for analyzing and predicting chloride ingress in ageing concrete structures as opposed to a-posteriori predictions made by matching chloride profiles obtained from cores, which is a common practice in the literature. Furthermore, it was clearly demonstrated that cathodic protection is effective in preventing chloride ingress into concrete. However, the ability to predict chloride ingress in the presence of cathodic protection was identified as a gap in current chloride ingress models such as TransChlor®, and an objective for future research.http://www.sciencedirect.com/science/article/pii/S2214509525008010De-icing saltChloride penetrationDurabilityField exposureConcrete repair |
| spellingShingle | Samaneh Khani David Conciatori Luc Chouinard Benoit Fournier Mohammad Khaleghi Esfahani Abdoul S. Bah Xuande Chen Chloride ingress in de-icing salt-exposed bridge: Numerical modeling and field investigations Case Studies in Construction Materials De-icing salt Chloride penetration Durability Field exposure Concrete repair |
| title | Chloride ingress in de-icing salt-exposed bridge: Numerical modeling and field investigations |
| title_full | Chloride ingress in de-icing salt-exposed bridge: Numerical modeling and field investigations |
| title_fullStr | Chloride ingress in de-icing salt-exposed bridge: Numerical modeling and field investigations |
| title_full_unstemmed | Chloride ingress in de-icing salt-exposed bridge: Numerical modeling and field investigations |
| title_short | Chloride ingress in de-icing salt-exposed bridge: Numerical modeling and field investigations |
| title_sort | chloride ingress in de icing salt exposed bridge numerical modeling and field investigations |
| topic | De-icing salt Chloride penetration Durability Field exposure Concrete repair |
| url | http://www.sciencedirect.com/science/article/pii/S2214509525008010 |
| work_keys_str_mv | AT samanehkhani chlorideingressindeicingsaltexposedbridgenumericalmodelingandfieldinvestigations AT davidconciatori chlorideingressindeicingsaltexposedbridgenumericalmodelingandfieldinvestigations AT lucchouinard chlorideingressindeicingsaltexposedbridgenumericalmodelingandfieldinvestigations AT benoitfournier chlorideingressindeicingsaltexposedbridgenumericalmodelingandfieldinvestigations AT mohammadkhaleghiesfahani chlorideingressindeicingsaltexposedbridgenumericalmodelingandfieldinvestigations AT abdoulsbah chlorideingressindeicingsaltexposedbridgenumericalmodelingandfieldinvestigations AT xuandechen chlorideingressindeicingsaltexposedbridgenumericalmodelingandfieldinvestigations |