Three-dimensional characterization of steel corrosion embedded in cement paste

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dc.contributor.authorSun, Hongfang
dc.contributor.authorZhao, Diandian
dc.contributor.authorGu, Yang
dc.contributor.authorMemon, Shazim Ali
dc.contributor.authorRen, Zhili
dc.contributor.authorLiu, Bing
dc.contributor.authorZhang, Xiaogang
dc.contributor.authorXing, Feng
dc.contributor.authorLi, Dawang
dc.creatorHongfang, Sun
dc.date.accessioned2017-12-21T05:47:59Z
dc.date.available2017-12-21T05:47:59Z
dc.date.issued2017-07-15
dc.description.abstractAbstract In this research, a micro X-ray computed tomography (μCT) technique was used to investigate the distribution of steel corrosion embedded in cement paste non-destructively. An electrochemical method was used to accelerate the corrosion of steels for two designed levels of corrosion (2% and 18%). For μCT observations, two camera lenses (0.4× and 4× camera lenses) were used to globally and locally investigate the tomography of un-corroded steels, corrosion products as well as cracks. The factors affecting the corrosion distribution, such as the immersion depth in NaCl electrolyte as well as the arrangement of cathode position were also investigated. Test results showed that corrosion started at a certain direction by forming pits. For both corrosion levels, the distribution of corrosion products is not significantly related to the position of cathode electrode but related to the distribution of cracks. More corrosion products accumulated at the steel surface where penetrating cracks occurred; whereas in the occluded cracks, the corrosion product was insignificant. Furthermore, the actual corrosion level was found to be related to the immersion depth in NaCl electrolyte. i.e., with the increase in the depth of immersion, the steel corrosion level increased.en_US
dc.identifierDOI:10.1016/j.conbuildmat.2017.03.106
dc.identifier.citationHongfang Sun, Diandian Zhao, Yang Gu, Shazim Ali Memon, Zhili Ren, Bing Liu, Xiaogang Zhang, Feng Xing, Dawang Li, Three-dimensional characterization of steel corrosion embedded in cement paste, In Construction and Building Materials, Volume 143, 2017, Pages 24-32en_US
dc.identifier.issn09500618
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0950061817304828
dc.identifier.urihttp://nur.nu.edu.kz/handle/123456789/2998
dc.language.isoenen_US
dc.publisherConstruction and Building Materialsen_US
dc.relation.ispartofConstruction and Building Materials
dc.rights.license© 2017 Elsevier Ltd. All rights reserved.
dc.subjectμCTen_US
dc.subjectSteel corrosionen_US
dc.subjectCracksen_US
dc.subjectThree-dimensional reconstructionen_US
dc.subjectNon-destructiveen_US
dc.titleThree-dimensional characterization of steel corrosion embedded in cement pasteen_US
dc.typeArticleen_US
elsevier.aggregationtypeJournal
elsevier.coverdate2017-07-15
elsevier.coverdisplaydate15 July 2017
elsevier.endingpage32
elsevier.identifier.doi10.1016/j.conbuildmat.2017.03.106
elsevier.identifier.eid1-s2.0-S0950061817304828
elsevier.identifier.piiS0950-0618(17)30482-8
elsevier.identifier.scopusid85011843801
elsevier.openaccess0
elsevier.openaccessarticlefalse
elsevier.openarchivearticlefalse
elsevier.startingpage24
elsevier.teaserIn this research, a micro X-ray computed tomography (μCT) technique was used to investigate the distribution of steel corrosion embedded in cement paste non-destructively. An electrochemical method...
elsevier.volume143
workflow.import.sourcescience

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