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- Publisher Website: 10.1016/j.conbuildmat.2023.132469
- Scopus: eid_2-s2.0-85165319441
- WOS: WOS:001042335900001
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Article: Residual mechanical performance and rust characterization of self-prestressing UHPM subjected to chloride-induced corrosion
Title | Residual mechanical performance and rust characterization of self-prestressing UHPM subjected to chloride-induced corrosion |
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Authors | |
Keywords | Expansive agent Linear polarization resistance Residual compressive strength Self-prestressing Steel fibre X-ray diffractometry |
Issue Date | 17-Jul-2023 |
Publisher | Elsevier |
Citation | Construction and Building Materials, 2023, v. 398 How to Cite? |
Abstract | Chloride-induced corrosion poses extreme vulnerabilities to the strength degradation and delamination of reinforced concrete structures in the oceanic environment. For this reason, the self-prestressing effect produced from the synergy of the combined addition of expansive agent (EA) and steel fibre (SF) into the concrete is suggested to enhance the corrosion performance (cracking and degradation) of concrete-steel tubular columns (CSTCs). Four mortar mixtures were prepared with the no EA and SF, individual use of EA or SF and combined use. The corrosion rate was measured by the linear polarization resistance (LPR) method, while crack-width and pit-depth were measured with scanning electron microscopy (SEM). Test results revealed that the self-prestressing ultra-high-performance mortar (UHPM) prepared by the combined use of EA and SF reduced the corrosion rate, pit depth, and crack width up to 87.3%, 55.8%, and 68.3%, respectively. Furthermore, it also results in the highest residual compressive strength. The corrosion products characterized by using an energy-dispersive x-ray detector (EDX) and x-ray diffractometry (XRD) for self-prestressing UHPM were oxides with a volume ratio to parent iron of approximately 2, which is the lowest amongst all and justifies its superior performance. |
Persistent Identifier | http://hdl.handle.net/10722/338188 |
ISSN | 2023 Impact Factor: 7.4 2023 SCImago Journal Rankings: 1.999 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Khan, Mahram | - |
dc.contributor.author | Chen, Lijie | - |
dc.contributor.author | Deng, Xiaowei | - |
dc.contributor.author | Su, Ray KL | - |
dc.date.accessioned | 2024-03-11T10:26:56Z | - |
dc.date.available | 2024-03-11T10:26:56Z | - |
dc.date.issued | 2023-07-17 | - |
dc.identifier.citation | Construction and Building Materials, 2023, v. 398 | - |
dc.identifier.issn | 0950-0618 | - |
dc.identifier.uri | http://hdl.handle.net/10722/338188 | - |
dc.description.abstract | <p>Chloride-induced corrosion poses extreme vulnerabilities to the strength degradation and delamination of reinforced concrete structures in the oceanic environment. For this reason, the self-prestressing effect produced from the synergy of the combined addition of expansive agent (EA) and steel fibre (SF) into the concrete is suggested to enhance the corrosion performance (cracking and degradation) of concrete-steel tubular columns (CSTCs). Four mortar mixtures were prepared with the no EA and SF, individual use of EA or SF and combined use. The <a href="https://www.sciencedirect.com/topics/engineering/corrosion-rate" title="Learn more about corrosion rate from ScienceDirect's AI-generated Topic Pages">corrosion rate</a> was measured by the linear polarization resistance (LPR) method, while crack-width and pit-depth were measured with scanning electron microscopy (SEM). Test results revealed that the self-prestressing ultra-high-performance mortar (UHPM) prepared by the combined use of EA and SF reduced the corrosion rate, pit depth, and crack width up to 87.3%, 55.8%, and 68.3%, respectively. Furthermore, it also results in the highest residual <a href="https://www.sciencedirect.com/topics/materials-science/compressive-strength" title="Learn more about compressive strength from ScienceDirect's AI-generated Topic Pages">compressive strength</a>. The corrosion products characterized by using an energy-dispersive x-ray detector (EDX) and x-ray diffractometry (XRD) for self-prestressing UHPM were oxides with a volume ratio to parent iron of approximately 2, which is the lowest amongst all and justifies its superior performance.<br></p> | - |
dc.language | eng | - |
dc.publisher | Elsevier | - |
dc.relation.ispartof | Construction and Building Materials | - |
dc.subject | Expansive agent | - |
dc.subject | Linear polarization resistance | - |
dc.subject | Residual compressive strength | - |
dc.subject | Self-prestressing | - |
dc.subject | Steel fibre | - |
dc.subject | X-ray diffractometry | - |
dc.title | Residual mechanical performance and rust characterization of self-prestressing UHPM subjected to chloride-induced corrosion | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.conbuildmat.2023.132469 | - |
dc.identifier.scopus | eid_2-s2.0-85165319441 | - |
dc.identifier.volume | 398 | - |
dc.identifier.eissn | 1879-0526 | - |
dc.identifier.isi | WOS:001042335900001 | - |
dc.identifier.issnl | 0950-0618 | - |