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dc.contributor.authorYao, J.
dc.contributor.authorChen, J.
dc.contributor.authorLu, Chunsheng
dc.date.accessioned2019-09-05T08:03:25Z
dc.date.available2019-09-05T08:03:25Z
dc.date.issued2019
dc.identifier.citationYao, J. and Chen, J. and Lu, C. 2019. Fractal cracking patterns in concretes exposed to sulfate attack. Materials. 12 (14).
dc.identifier.urihttp://hdl.handle.net/20.500.11937/76236
dc.identifier.doi10.3390/ma12142338
dc.description.abstract

© 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.

dc.languageeng
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectconcrete
dc.subjectdigital image processing
dc.subjectfractal dimension
dc.subjectmicro-crack propagation
dc.subjectsulfate attack
dc.titleFractal cracking patterns in concretes exposed to sulfate attack
dc.typeJournal Article
dcterms.source.volume12
dcterms.source.number14
dcterms.source.issn1996-1944
dcterms.source.titleMaterials
dc.date.updated2019-09-05T08:03:14Z
curtin.departmentSchool of Civil and Mechanical Engineering
curtin.accessStatusOpen access
curtin.facultyFaculty of Science and Engineering
curtin.contributor.orcidLu, Chunsheng [0000-0002-7368-8104]
dcterms.source.eissn1996-1944
curtin.contributor.scopusauthoridLu, Chunsheng [57061177000]


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