Long-term Influence of Concrete Surface and Crack Orientation on Self-healing and Ingress in Cracks – Field Observations
This paper presents results from investigations on the long-term influence of concrete surface and crack orientation on ingress in cracks. Five reinforced concrete structures from Norway exposed to either de-icing salts or seawater have been investigated. Concrete cores were taken with and without c...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Sciendo
2018-06-01
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| Series: | Nordic Concrete Research |
| Subjects: | |
| Online Access: | https://doi.org/10.2478/ncr-2018-0001 |
| _version_ | 1830210848880066560 |
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| author | Danner Tobias Geiker Mette Rica |
| author_facet | Danner Tobias Geiker Mette Rica |
| author_sort | Danner Tobias |
| collection | DOAJ |
| description | This paper presents results from investigations on the long-term influence of concrete surface and crack orientation on ingress in cracks. Five reinforced concrete structures from Norway exposed to either de-icing salts or seawater have been investigated. Concrete cores were taken with and without cracks from surfaces with vertical and horizontal orientation. Carbonation in cracks was found on all de-iced structures, and a crack on a completely horizontal surface appeared to facilitate chloride ingress. Ingress of substances from seawater was found in all cracks from marine exposure. However, the impact of cracks on chloride ingress was unclear. Horizontal cracks on vertical surfaces appeared to facilitate self-healing. |
| first_indexed | 2024-12-18T05:32:51Z |
| format | Article |
| id | doaj.art-f80b19fb82b94b6ab1f24a2c1ebd0932 |
| institution | Directory Open Access Journal |
| issn | 2545-2819 |
| language | English |
| last_indexed | 2024-12-18T05:32:51Z |
| publishDate | 2018-06-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Nordic Concrete Research |
| spelling | doaj.art-f80b19fb82b94b6ab1f24a2c1ebd09322022-12-21T21:19:25ZengSciendoNordic Concrete Research2545-28192018-06-0158111610.2478/ncr-2018-0001Long-term Influence of Concrete Surface and Crack Orientation on Self-healing and Ingress in Cracks – Field ObservationsDanner Tobias0Geiker Mette Rica1MSc, PhD, Researcher, Norwegian University of Science and Technology, Department of Structural Engineering, Richard Birkelandsvei 1a, NO-7491TrondheimMSc, PhD, Professor, Norwegian University of Science and Technology, Department of Structural Engineering, Richard Birkelandsvei 1a, NO-7491TrondheimThis paper presents results from investigations on the long-term influence of concrete surface and crack orientation on ingress in cracks. Five reinforced concrete structures from Norway exposed to either de-icing salts or seawater have been investigated. Concrete cores were taken with and without cracks from surfaces with vertical and horizontal orientation. Carbonation in cracks was found on all de-iced structures, and a crack on a completely horizontal surface appeared to facilitate chloride ingress. Ingress of substances from seawater was found in all cracks from marine exposure. However, the impact of cracks on chloride ingress was unclear. Horizontal cracks on vertical surfaces appeared to facilitate self-healing.https://doi.org/10.2478/ncr-2018-0001cracksexposureingressfield observationslong-term |
| spellingShingle | Danner Tobias Geiker Mette Rica Long-term Influence of Concrete Surface and Crack Orientation on Self-healing and Ingress in Cracks – Field Observations Nordic Concrete Research cracks exposure ingress field observations long-term |
| title | Long-term Influence of Concrete Surface and Crack Orientation on Self-healing and Ingress in Cracks – Field Observations |
| title_full | Long-term Influence of Concrete Surface and Crack Orientation on Self-healing and Ingress in Cracks – Field Observations |
| title_fullStr | Long-term Influence of Concrete Surface and Crack Orientation on Self-healing and Ingress in Cracks – Field Observations |
| title_full_unstemmed | Long-term Influence of Concrete Surface and Crack Orientation on Self-healing and Ingress in Cracks – Field Observations |
| title_short | Long-term Influence of Concrete Surface and Crack Orientation on Self-healing and Ingress in Cracks – Field Observations |
| title_sort | long term influence of concrete surface and crack orientation on self healing and ingress in cracks field observations |
| topic | cracks exposure ingress field observations long-term |
| url | https://doi.org/10.2478/ncr-2018-0001 |
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