Performance of Cracked Ultra-High-Performance Fiber-Reinforced Concrete Exposed to Dry-Wet Cycles of Chlorides
This paper presents an experimental study on the performance of cracked ultra-high-performance fiber-reinforced concrete (UHPC) exposed to dry-wet cycles of 3.5% NaCl solution under the temperature of 60°C. The results show that the wider the crack, the higher the corrosion degree of steel fibers em...
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| description | This paper presents an experimental study on the performance of cracked ultra-high-performance fiber-reinforced concrete (UHPC) exposed to dry-wet cycles of 3.5% NaCl solution under the temperature of 60°C. The results show that the wider the crack, the higher the corrosion degree of steel fibers embedded in UHPC, and the deeper the chloride ion diffusion on both sides of the crack. With the increase of dry-wet cycles, the flexural strength of precracked UHPC first decreases and then increases, and the lowest flexural strength was observed in 60 dry-wet cycles. Although self-healing is hard to cease the corrosion of steel fibers, it can relieve the corrosion of steel fibers and improve the flexural strength exposed to 100 dry-wet cycles. |
| doi_str_mv | 10.1155/2021/4625972 |
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The results show that the wider the crack, the higher the corrosion degree of steel fibers embedded in UHPC, and the deeper the chloride ion diffusion on both sides of the crack. With the increase of dry-wet cycles, the flexural strength of precracked UHPC first decreases and then increases, and the lowest flexural strength was observed in 60 dry-wet cycles. Although self-healing is hard to cease the corrosion of steel fibers, it can relieve the corrosion of steel fibers and improve the flexural strength exposed to 100 dry-wet cycles.</description><identifier>ISSN: 1687-8434</identifier><identifier>EISSN: 1687-8442</identifier><identifier>DOI: 10.1155/2021/4625972</identifier><language>eng</language><publisher>LONDON: Hindawi</publisher><subject>Cement ; Chloride ions ; Concrete ; Corrosion ; Cracks ; Curing ; Epoxy resins ; Fiber reinforced concretes ; Flexural strength ; Ion diffusion ; Materials Science ; Materials Science, Multidisciplinary ; Mechanical properties ; Performance evaluation ; Permeability ; Physical properties ; Reinforced concrete ; Reinforcing steels ; Science & Technology ; Steel fibers ; Technology ; Tensile strength</subject><ispartof>Advances in materials science and engineering, 2021, Vol.2021 (1), Article 4625972</ispartof><rights>Copyright © 2021 Longlong Niu and Shiping Zhang.</rights><rights>Copyright © 2021 Longlong Niu and Shiping Zhang. This is an open access article distributed under the Creative Commons Attribution License (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. https://creativecommons.org/licenses/by/4.0</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>true</woscitedreferencessubscribed><woscitedreferencescount>3</woscitedreferencescount><woscitedreferencesoriginalsourcerecordid>wos000775603400001</woscitedreferencesoriginalsourcerecordid><cites>FETCH-LOGICAL-c360t-cd39b4b836e52aea4d30c512c0bae1a41d90f44fe1a3e245fbd0c6bf910fc9c33</cites><orcidid>0000-0003-2006-6931 ; 0000-0003-2589-0743</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,778,782,862,875,2098,2110,4012,27910,27911,27912</link.rule.ids></links><search><contributor>Evangelista, Luís</contributor><contributor>Luís Evangelista</contributor><creatorcontrib>Niu, Longlong</creatorcontrib><creatorcontrib>Zhang, Shiping</creatorcontrib><title>Performance of Cracked Ultra-High-Performance Fiber-Reinforced Concrete Exposed to Dry-Wet Cycles of Chlorides</title><title>Advances in materials science and engineering</title><addtitle>ADV MATER SCI ENG</addtitle><description>This paper presents an experimental study on the performance of cracked ultra-high-performance fiber-reinforced concrete (UHPC) exposed to dry-wet cycles of 3.5% NaCl solution under the temperature of 60°C. The results show that the wider the crack, the higher the corrosion degree of steel fibers embedded in UHPC, and the deeper the chloride ion diffusion on both sides of the crack. With the increase of dry-wet cycles, the flexural strength of precracked UHPC first decreases and then increases, and the lowest flexural strength was observed in 60 dry-wet cycles. Although self-healing is hard to cease the corrosion of steel fibers, it can relieve the corrosion of steel fibers and improve the flexural strength exposed to 100 dry-wet cycles.</description><subject>Cement</subject><subject>Chloride ions</subject><subject>Concrete</subject><subject>Corrosion</subject><subject>Cracks</subject><subject>Curing</subject><subject>Epoxy resins</subject><subject>Fiber reinforced concretes</subject><subject>Flexural strength</subject><subject>Ion diffusion</subject><subject>Materials Science</subject><subject>Materials Science, Multidisciplinary</subject><subject>Mechanical properties</subject><subject>Performance evaluation</subject><subject>Permeability</subject><subject>Physical properties</subject><subject>Reinforced concrete</subject><subject>Reinforcing steels</subject><subject>Science & Technology</subject><subject>Steel fibers</subject><subject>Technology</subject><subject>Tensile strength</subject><issn>1687-8434</issn><issn>1687-8442</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>RHX</sourceid><sourceid>HGBXW</sourceid><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><sourceid>DOA</sourceid><recordid>eNqNkc1qGzEUhYfQQIyTXR9goMt2Ev2PtCzTuAkEWkpCl0KjubLl2iNHkkn99pHj4HQVqo0uh0_nHnSq6iNGlxhzfkUQwVdMEK5aclJNsJBtIxkjH44zZWfVRUpLVA5VXCg2qcafEF2IazNaqIOru2jsHxjqh1WOprnx80XzLzHzPcTmF_ixSLZwXRhthAz19d9NSEXIof4Wd81vyHW3sytIL66LVYh-gHRenTqzSnDxek-rh9n1fXfT3P34ftt9vWssFSg3dqCqZ72kAjgxYNhAkeWYWNQbwIbhQSHHmCszBcK46wdkRe8URs4qS-m0uj34DsEs9Sb6tYk7HYzXL0KIc21i9iWfJkClQrJlVEkGGCRBhoEQlHBQshXF69PBaxPD4xZS1suwjWOJr4lACnMiZVuoLwfKxpBSBHfcipHeF6T3BenXggr--YA_QR9csh7K9x6flILalgtE2b4rXGj5_3Tns8k-jF3Yjvlt0cKPg3ny78d6Bp1UrzY</recordid><startdate>2021</startdate><enddate>2021</enddate><creator>Niu, Longlong</creator><creator>Zhang, Shiping</creator><general>Hindawi</general><general>Hindawi Publishing Group</general><general>Hindawi Limited</general><scope>RHU</scope><scope>RHW</scope><scope>RHX</scope><scope>BLEPL</scope><scope>DTL</scope><scope>HGBXW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7SR</scope><scope>7XB</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>8G5</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>CWDGH</scope><scope>D1I</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>L6V</scope><scope>M2O</scope><scope>M7S</scope><scope>MBDVC</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>Q9U</scope><scope>DOA</scope><orcidid>https://orcid.org/0000-0003-2006-6931</orcidid><orcidid>https://orcid.org/0000-0003-2589-0743</orcidid></search><sort><creationdate>2021</creationdate><title>Performance of Cracked Ultra-High-Performance Fiber-Reinforced Concrete Exposed to Dry-Wet Cycles of Chlorides</title><author>Niu, Longlong ; 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| subjects | Cement Chloride ions Concrete Corrosion Cracks Curing Epoxy resins Fiber reinforced concretes Flexural strength Ion diffusion Materials Science Materials Science, Multidisciplinary Mechanical properties Performance evaluation Permeability Physical properties Reinforced concrete Reinforcing steels Science & Technology Steel fibers Technology Tensile strength |
| title | Performance of Cracked Ultra-High-Performance Fiber-Reinforced Concrete Exposed to Dry-Wet Cycles of Chlorides |
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