A SIMPLE MODEL FOR THE CHLORIDE DIFFUSION COEFFICIENT OF STEEL FIBRE REINFORCED CONCRETE
The chloride diffusion coefficient is the most important parameter when describing the chloride ingress in concrete. This paper proposes a simple model to predict the chloride diffusion coefficient of steel fibre reinforced concrete (SFRC). The chloride diffusion coefficients of a cement paste and a...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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University of Chemistry and Technology, Prague
2021-03-01
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| Series: | Ceramics-Silikáty |
| Subjects: | |
| Online Access: |
http://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=1392
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| _version_ | 1827811807680528384 |
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| author | Mwila Chitakwa Qiannan Wang Peng Yuxiang Gao Zesu Zhang Weibin Yang Lixia Gu Chunping |
| author_facet | Mwila Chitakwa Qiannan Wang Peng Yuxiang Gao Zesu Zhang Weibin Yang Lixia Gu Chunping |
| author_sort | Mwila Chitakwa |
| collection | DOAJ |
| description | The chloride diffusion coefficient is the most important parameter when describing the chloride ingress in concrete. This paper proposes a simple model to predict the chloride diffusion coefficient of steel fibre reinforced concrete (SFRC). The chloride diffusion coefficients of a cement paste and an interfacial transition zone (ITZ) were calculated with their porosities, respectively. The ITZ porosity was obtained with a w/b ratio based on a porosity model. The chloride diffusion coefficient of the matrix was then determined according to the general self-consistent scheme, and the influence of the steel fibre was simplified with its volume fraction. The calculated chloride diffusion coefficient of the SFRC was verified with the results from the bulk diffusion tests and the accuracy was acceptable. |
| first_indexed | 2024-03-11T23:10:59Z |
| format | Article |
| id | doaj.art-e1a1289aa67f46bf837a96e7c377cf3a |
| institution | Directory Open Access Journal |
| issn | 0862-5468 1804-5847 |
| language | English |
| last_indexed | 2024-03-11T23:10:59Z |
| publishDate | 2021-03-01 |
| publisher | University of Chemistry and Technology, Prague |
| record_format | Article |
| series | Ceramics-Silikáty |
| spelling | doaj.art-e1a1289aa67f46bf837a96e7c377cf3a2023-09-21T11:32:06ZengUniversity of Chemistry and Technology, PragueCeramics-Silikáty0862-54681804-58472021-03-01651697610.13168/cs.2021.000310.13168/cs.2021.0003.20230921113050A SIMPLE MODEL FOR THE CHLORIDE DIFFUSION COEFFICIENT OF STEEL FIBRE REINFORCED CONCRETEMwila Chitakwa0Qiannan Wang1Peng Yuxiang2Gao Zesu3Zhang Weibin4Yang Lixia5Gu Chunping School of Civil Engineering and Architecture, Zhejiang University of Science and Technology, Hangzhou 310023, China School of Civil Engineering and Architecture, Zhejiang University of Science and Technology, Hangzhou 310023, China School of Civil Engineering and Architecture, Zhejiang University of Science and Technology, Hangzhou 310023, China School of Civil Engineering and Architecture, Zhejiang University of Science and Technology, Hangzhou 310023, China School of Civil Engineering and Architecture, Zhejiang University of Science and Technology, Hangzhou 310023, China School of Civil Engineering and Architecture, Zhejiang University of Science and Technology, Hangzhou 310023, China The chloride diffusion coefficient is the most important parameter when describing the chloride ingress in concrete. This paper proposes a simple model to predict the chloride diffusion coefficient of steel fibre reinforced concrete (SFRC). The chloride diffusion coefficients of a cement paste and an interfacial transition zone (ITZ) were calculated with their porosities, respectively. The ITZ porosity was obtained with a w/b ratio based on a porosity model. The chloride diffusion coefficient of the matrix was then determined according to the general self-consistent scheme, and the influence of the steel fibre was simplified with its volume fraction. The calculated chloride diffusion coefficient of the SFRC was verified with the results from the bulk diffusion tests and the accuracy was acceptable. http://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=1392 chloride porosity paste interfacial transition zone general self-consistent scheme |
| spellingShingle | Mwila Chitakwa Qiannan Wang Peng Yuxiang Gao Zesu Zhang Weibin Yang Lixia Gu Chunping A SIMPLE MODEL FOR THE CHLORIDE DIFFUSION COEFFICIENT OF STEEL FIBRE REINFORCED CONCRETE Ceramics-Silikáty chloride porosity paste interfacial transition zone general self-consistent scheme |
| title | A SIMPLE MODEL FOR THE CHLORIDE DIFFUSION COEFFICIENT OF STEEL FIBRE REINFORCED CONCRETE |
| title_full | A SIMPLE MODEL FOR THE CHLORIDE DIFFUSION COEFFICIENT OF STEEL FIBRE REINFORCED CONCRETE |
| title_fullStr | A SIMPLE MODEL FOR THE CHLORIDE DIFFUSION COEFFICIENT OF STEEL FIBRE REINFORCED CONCRETE |
| title_full_unstemmed | A SIMPLE MODEL FOR THE CHLORIDE DIFFUSION COEFFICIENT OF STEEL FIBRE REINFORCED CONCRETE |
| title_short | A SIMPLE MODEL FOR THE CHLORIDE DIFFUSION COEFFICIENT OF STEEL FIBRE REINFORCED CONCRETE |
| title_sort | simple model for the chloride diffusion coefficient of steel fibre reinforced concrete |
| topic | chloride porosity paste interfacial transition zone general self-consistent scheme |
| url |
http://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=1392
|
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