BONDING BEHAVIOUR AND FAILURE MECHANISM OF DAMAGED CEMENT CONCRETE REPAIRED USING EPOXY-BASED CONCRETE
In this paper, the strength grade and surface roughness of damaged concrete are used as controlling factors to explore their influence on the bonding behaviour of concrete repaired using epoxy-based concrete. Using X-ray photoelectron spectroscopy (XPS) analyses and phenomenological methods, the ess...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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University of Chemistry and Technology, Prague
2022-01-01
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| Series: | Ceramics-Silikáty |
| Subjects: | |
| Online Access: |
http://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=1449
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| _version_ | 1797676974025474048 |
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| author | Guogang Ying Chuanhui Tang Wu Jinqting Wang Yuquan Xu Yidong |
| author_facet | Guogang Ying Chuanhui Tang Wu Jinqting Wang Yuquan Xu Yidong |
| author_sort | Guogang Ying |
| collection | DOAJ |
| description | In this paper, the strength grade and surface roughness of damaged concrete are used as controlling factors to explore their influence on the bonding behaviour of concrete repaired using epoxy-based concrete. Using X-ray photoelectron spectroscopy (XPS) analyses and phenomenological methods, the essence of the bonding force and the mechanism for bonding failure between the epoxy-based concrete and damaged concrete are revealed. As shown by the results, the bonding strength of the repaired concrete increases with an increase in the average sand-filling depth and the strength grade of the damaged concrete. However, when the sand-filling depth exceeds 17 mm, the bonding strength no longer increases. The chemical bonding force between the epoxy-based concrete and damaged concrete essentially comes from coordination bonds formed at the bonding surface. Based on the experimental phenomena and test results, a bonding strength model is established for the repaired concrete, and it provides a basis for predicting the interface bond strength in practical repair engineering. |
| first_indexed | 2024-03-11T22:38:12Z |
| format | Article |
| id | doaj.art-b812745c115b4f17b2b949ba773502db |
| institution | Directory Open Access Journal |
| issn | 0862-5468 1804-5847 |
| language | English |
| last_indexed | 2024-03-11T22:38:12Z |
| publishDate | 2022-01-01 |
| publisher | University of Chemistry and Technology, Prague |
| record_format | Article |
| series | Ceramics-Silikáty |
| spelling | doaj.art-b812745c115b4f17b2b949ba773502db2023-09-22T12:06:00ZengUniversity of Chemistry and Technology, PragueCeramics-Silikáty0862-54681804-58472022-01-01661364210.13168/cs.2021.005010.13168/cs.2021.0050.20230922115640BONDING BEHAVIOUR AND FAILURE MECHANISM OF DAMAGED CEMENT CONCRETE REPAIRED USING EPOXY-BASED CONCRETEGuogang Ying0Chuanhui Tang1Wu Jinqting2Wang Yuquan3Xu Yidong4 School of Civil Engineering and Architecture, NingboTech University, Ningbo 315100, China School of Civil Engineering and Architecture, NingboTech University, Ningbo 315100, China School of Civil Engineering and Architecture, NingboTech University, Ningbo 315100, China School of Civil Engineering and Architecture, NingboTech University, Ningbo 315100, China School of Civil Engineering and Architecture, NingboTech University, Ningbo 315100, China In this paper, the strength grade and surface roughness of damaged concrete are used as controlling factors to explore their influence on the bonding behaviour of concrete repaired using epoxy-based concrete. Using X-ray photoelectron spectroscopy (XPS) analyses and phenomenological methods, the essence of the bonding force and the mechanism for bonding failure between the epoxy-based concrete and damaged concrete are revealed. As shown by the results, the bonding strength of the repaired concrete increases with an increase in the average sand-filling depth and the strength grade of the damaged concrete. However, when the sand-filling depth exceeds 17 mm, the bonding strength no longer increases. The chemical bonding force between the epoxy-based concrete and damaged concrete essentially comes from coordination bonds formed at the bonding surface. Based on the experimental phenomena and test results, a bonding strength model is established for the repaired concrete, and it provides a basis for predicting the interface bond strength in practical repair engineering. http://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=1449 epoxy-based concrete x-ray photoelectron spectroscopy mechanical occlusal force chemical adhesion force bonding mechanism |
| spellingShingle | Guogang Ying Chuanhui Tang Wu Jinqting Wang Yuquan Xu Yidong BONDING BEHAVIOUR AND FAILURE MECHANISM OF DAMAGED CEMENT CONCRETE REPAIRED USING EPOXY-BASED CONCRETE Ceramics-Silikáty epoxy-based concrete x-ray photoelectron spectroscopy mechanical occlusal force chemical adhesion force bonding mechanism |
| title | BONDING BEHAVIOUR AND FAILURE MECHANISM OF DAMAGED CEMENT CONCRETE REPAIRED USING EPOXY-BASED CONCRETE |
| title_full | BONDING BEHAVIOUR AND FAILURE MECHANISM OF DAMAGED CEMENT CONCRETE REPAIRED USING EPOXY-BASED CONCRETE |
| title_fullStr | BONDING BEHAVIOUR AND FAILURE MECHANISM OF DAMAGED CEMENT CONCRETE REPAIRED USING EPOXY-BASED CONCRETE |
| title_full_unstemmed | BONDING BEHAVIOUR AND FAILURE MECHANISM OF DAMAGED CEMENT CONCRETE REPAIRED USING EPOXY-BASED CONCRETE |
| title_short | BONDING BEHAVIOUR AND FAILURE MECHANISM OF DAMAGED CEMENT CONCRETE REPAIRED USING EPOXY-BASED CONCRETE |
| title_sort | bonding behaviour and failure mechanism of damaged cement concrete repaired using epoxy based concrete |
| topic | epoxy-based concrete x-ray photoelectron spectroscopy mechanical occlusal force chemical adhesion force bonding mechanism |
| url |
http://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=1449
|
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