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- Publisher Website: 10.1016/j.conbuildmat.2019.04.096
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Article: A novel elastic-body-rotation model for concrete cover spalling caused by non-uniform corrosion of reinforcement
| Title | A novel elastic-body-rotation model for concrete cover spalling caused by non-uniform corrosion of reinforcement |
|---|---|
| Authors | |
| Keywords | Concrete cover Non-uniform corrosion Cover spalling Analytical model |
| Issue Date | 2019 |
| Publisher | Elsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/conbuildmat |
| Citation | Construction and Building Materials, 2019, v. 213, p. 549-560 How to Cite? |
| Abstract | A novel elastic-body-rotation model is proposed to analyze the mechanism and the process of cover cracking and spalling caused by the non-uniform corrosion of widely spaced reinforcements. The width of the cover surface cracks, bulging of the concrete surface and maximum thickness of the corroded steel can be predicted by using the proposed model. The predicted bulging of the concrete cover has been validated by the experimental and numerical results. Using the validated model, the effects of the diagonal crack angle, tensile strength of concrete and cover thickness on the bulging of the cover surface and the thickness of the corroded steel for initiating and widening cracks are investigated with a parametric study. It is found that the diagonal cracking angle has a major influence on the cover surface crack width. In addition, the degree of corrosion in rebars and the width of internal diagonal cracks can be evaluated by simply measuring the width of surface cracks or the bulging of cover surface. |
| Persistent Identifier | http://hdl.handle.net/10722/272148 |
| ISSN | 2021 Impact Factor: 7.693 2020 SCImago Journal Rankings: 1.662 |
| ISI Accession Number ID |
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Su, RKL | - |
| dc.contributor.author | Zhang, Y | - |
| dc.date.accessioned | 2019-07-20T10:36:36Z | - |
| dc.date.available | 2019-07-20T10:36:36Z | - |
| dc.date.issued | 2019 | - |
| dc.identifier.citation | Construction and Building Materials, 2019, v. 213, p. 549-560 | - |
| dc.identifier.issn | 0950-0618 | - |
| dc.identifier.uri | http://hdl.handle.net/10722/272148 | - |
| dc.description.abstract | A novel elastic-body-rotation model is proposed to analyze the mechanism and the process of cover cracking and spalling caused by the non-uniform corrosion of widely spaced reinforcements. The width of the cover surface cracks, bulging of the concrete surface and maximum thickness of the corroded steel can be predicted by using the proposed model. The predicted bulging of the concrete cover has been validated by the experimental and numerical results. Using the validated model, the effects of the diagonal crack angle, tensile strength of concrete and cover thickness on the bulging of the cover surface and the thickness of the corroded steel for initiating and widening cracks are investigated with a parametric study. It is found that the diagonal cracking angle has a major influence on the cover surface crack width. In addition, the degree of corrosion in rebars and the width of internal diagonal cracks can be evaluated by simply measuring the width of surface cracks or the bulging of cover surface. | - |
| dc.language | eng | - |
| dc.publisher | Elsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/conbuildmat | - |
| dc.relation.ispartof | Construction and Building Materials | - |
| dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
| dc.subject | Concrete cover | - |
| dc.subject | Non-uniform corrosion | - |
| dc.subject | Cover spalling | - |
| dc.subject | Analytical model | - |
| dc.title | A novel elastic-body-rotation model for concrete cover spalling caused by non-uniform corrosion of reinforcement | - |
| dc.type | Article | - |
| dc.identifier.email | Su, RKL: klsu@hkucc.hku.hk | - |
| dc.identifier.authority | Su, RKL=rp00072 | - |
| dc.description.nature | postprint | - |
| dc.identifier.doi | 10.1016/j.conbuildmat.2019.04.096 | - |
| dc.identifier.scopus | eid_2-s2.0-85064222822 | - |
| dc.identifier.hkuros | 299116 | - |
| dc.identifier.volume | 213 | - |
| dc.identifier.spage | 549 | - |
| dc.identifier.epage | 560 | - |
| dc.identifier.isi | WOS:000471084500049 | - |
| dc.publisher.place | Netherlands | - |
| dc.identifier.issnl | 0950-0618 | - |