Microstructural examination of concrete exposed to elevated temperature by using plane polarized transmitted light method

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dc.authorid0000-0002-4448-2393
dc.contributor.authorAkcaozoglu, Kubilay
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2013
dc.departmentNiğde ÖHÜ
dc.description.abstractIn this study, the influence of elevated temperature on the residual compressive strength and ultrasonic wave velocity of the concrete specimens has been investigated. In addition, the effect of elevated temperature on the aggregate-cement paste interface and aggregate microstructure of the concrete specimens was also has been examined by plane polarized transmitted light (PPTL) method. Investigation was carried out by using one concrete mixture which was produced by normal Portland cement (PC), quartzitic natural sand and crushed basaltic coarse aggregate. The water-cement (w/c) ratio used in the mixtures was 0.50. The produced concrete specimens were exposed to 200, 400, 600, 800 and 1000 C. Test results indicated that the residual compressive strength and ultrasonic wave velocity values of the concrete specimens decreased depending on increase in elevated temperature. In addition PPTL examinations showed that, increasing temperature caused weakening of the adherence of aggregate and cement matrix. Film layers and discontinuities observed in the aggregate-cement matrix depend on increasing temperature. Fast cooling (FC) method resulted in strength losses when compared to slow cooling (SC) method.
dc.identifier.doi10.1016/j.conbuildmat.2013.06.059
dc.identifier.endpage779
dc.identifier.issn0950-0618
dc.identifier.issn1879-0526
dc.identifier.scopus2-s2.0-84883111377
dc.identifier.scopusqualityQ1
dc.identifier.startpage772
dc.identifier.urihttps://dx.doi.org/10.1016/j.conbuildmat.2013.06.059
dc.identifier.urihttps://hdl.handle.net/11480/4330
dc.identifier.volume48
dc.identifier.wosWOS:000327561200093
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorAkcaozoglu, Kubilay
dc.language.isoen
dc.publisherELSEVIER SCI LTD
dc.relation.ispartofCONSTRUCTION AND BUILDING MATERIALS
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectElevated temperature
dc.subjectResidual compressive strength
dc.subjectUltrasonic wave velocity
dc.subjectPlane polarized light
dc.subjectAggregate-matrix interface
dc.subjectMicrostructure
dc.titleMicrostructural examination of concrete exposed to elevated temperature by using plane polarized transmitted light method
dc.typeArticle

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