Characterization of thermally damaged concrete using a nonlinear ultrasonic method

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dc.contributor.authorYim, Hong-Jaeko
dc.contributor.authorKim, Jae Hongko
dc.contributor.authorPark, Sun-Jongko
dc.contributor.authorKwak, Hyo-Gyoungko
dc.date.accessioned2013-03-12T10:55:20Z-
dc.date.available2013-03-12T10:55:20Z-
dc.date.created2012-10-24-
dc.date.created2012-10-24-
dc.date.issued2012-11-
dc.identifier.citationCEMENT AND CONCRETE RESEARCH, v.42, no.11, pp.1438 - 1446-
dc.identifier.issn0008-8846-
dc.identifier.urihttp://hdl.handle.net/10203/102083-
dc.description.abstractThermal damage in concrete usually induces contact-type defects, which result in degradation of the concrete's performance. This paper attempts to visualize the thermal damage in a multiscale, and characterizes the thermally damaged concrete using a nonlinear ultrasonic method. An impact-modulation method is used to obtain nonlinearity parameters, as a quantitative measure of contact-type defects, and shows better sensitivity than phase velocity variation as a linear ultrasonic method for thermally damaged concrete. The measured nonlinearity parameter is compared with the permeable pores, which reflect the occurrence of opening and pores in thermally damaged concrete. Degradation of concrete strength due to thermal damage is also assessed via the measurement. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.-
dc.languageEnglish-
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD-
dc.subjectNONDESTRUCTIVE EVALUATION-
dc.subjectINTERFACES-
dc.subjectWAVES-
dc.titleCharacterization of thermally damaged concrete using a nonlinear ultrasonic method-
dc.typeArticle-
dc.identifier.wosid000311471500005-
dc.identifier.scopusid2-s2.0-84867882508-
dc.type.rimsART-
dc.citation.volume42-
dc.citation.issue11-
dc.citation.beginningpage1438-
dc.citation.endingpage1446-
dc.citation.publicationnameCEMENT AND CONCRETE RESEARCH-
dc.identifier.doi10.1016/j.cemconres.2012.08.006-
dc.embargo.liftdate9999-12-31-
dc.embargo.terms9999-12-31-
dc.contributor.localauthorKim, Jae Hong-
dc.contributor.localauthorKwak, Hyo-Gyoung-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorConcrete-
dc.subject.keywordAuthorTemperature-
dc.subject.keywordAuthorMicrostructure-
dc.subject.keywordAuthorDegradation-
dc.subject.keywordAuthorSEM-
dc.subject.keywordPlusNONDESTRUCTIVE EVALUATION-
dc.subject.keywordPlusINTERFACES-
dc.subject.keywordPlusWAVES-
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CE-Journal Papers(저널논문)
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