Fractal cracking patterns in concretes exposed to sulfate attack
© 2019 by the authors. Sulfate attack tests were performed on concrete samples with three water-to-cement ratios, and micro-crack growth patterns on concrete surfaces were recorded. The expansive stress and crack nucleation caused by delayed ettringite formation (DEF) were studied using X-ray diffra...
| Main Authors: | , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2019
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/76236 |
| _version_ | 1848763647610847232 |
|---|---|
| author | Yao, J. Chen, J. Lu, Chunsheng |
| author_facet | Yao, J. Chen, J. Lu, Chunsheng |
| author_sort | Yao, J. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2019 by the authors. Sulfate attack tests were performed on concrete samples with three water-to-cement ratios, and micro-crack growth patterns on concrete surfaces were recorded. The expansive stress and crack nucleation caused by delayed ettringite formation (DEF) were studied using X-ray diffraction and scanning electron microscopy. By means of a digital image processing technology, fractal dimensions of surface cracking patterns were determined, which monotonously increase during corrosion. Moreover, it is shown that the change of fractal dimensions is directly proportional to accumulation of DEF, and therefore, a simple theoretical model could be proposed to describe the micro-crack evolution in concretes under sulfate attack. |
| first_indexed | 2025-11-14T11:06:47Z |
| format | Journal Article |
| id | curtin-20.500.11937-76236 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | eng |
| last_indexed | 2025-11-14T11:06:47Z |
| publishDate | 2019 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-762362019-09-09T01:06:43Z Fractal cracking patterns in concretes exposed to sulfate attack Yao, J. Chen, J. Lu, Chunsheng concrete digital image processing fractal dimension micro-crack propagation sulfate attack © 2019 by the authors. Sulfate attack tests were performed on concrete samples with three water-to-cement ratios, and micro-crack growth patterns on concrete surfaces were recorded. The expansive stress and crack nucleation caused by delayed ettringite formation (DEF) were studied using X-ray diffraction and scanning electron microscopy. By means of a digital image processing technology, fractal dimensions of surface cracking patterns were determined, which monotonously increase during corrosion. Moreover, it is shown that the change of fractal dimensions is directly proportional to accumulation of DEF, and therefore, a simple theoretical model could be proposed to describe the micro-crack evolution in concretes under sulfate attack. 2019 Journal Article http://hdl.handle.net/20.500.11937/76236 10.3390/ma12142338 eng http://creativecommons.org/licenses/by/4.0/ fulltext |
| spellingShingle | concrete digital image processing fractal dimension micro-crack propagation sulfate attack Yao, J. Chen, J. Lu, Chunsheng Fractal cracking patterns in concretes exposed to sulfate attack |
| title | Fractal cracking patterns in concretes exposed to sulfate attack |
| title_full | Fractal cracking patterns in concretes exposed to sulfate attack |
| title_fullStr | Fractal cracking patterns in concretes exposed to sulfate attack |
| title_full_unstemmed | Fractal cracking patterns in concretes exposed to sulfate attack |
| title_short | Fractal cracking patterns in concretes exposed to sulfate attack |
| title_sort | fractal cracking patterns in concretes exposed to sulfate attack |
| topic | concrete digital image processing fractal dimension micro-crack propagation sulfate attack |
| url | http://hdl.handle.net/20.500.11937/76236 |