Imaging of voids in concrete by impact-echo and ultrasonic-echo methods [Betondaki boşlukların darbe-eko ve ultrasonik-eko yöntemleri ile görüntülenmesi]

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dc.contributor.authorTayfur S.
dc.contributor.authorAlver N.
dc.date.accessioned2019-10-27T08:02:38Z
dc.date.available2019-10-27T08:02:38Z
dc.date.issued2018
dc.departmentEge Üniversitesien_US
dc.description.abstractImpact-echo (IE) and ultrasonic-echo (UE) are widely used elastic wave methods to determine voids in concrete and have successful applications in the field. However, because in most cases it is difficult to interpret the results, researchers have been studying on to develop imaging algorithms. In this study, SIBIE (Stack Imaging of Spectral Amplitudes Based on IE) and SAFT (Synthetic Aperture Focusing Technique) algorithms were used in order to evaluate voids within concrete blocks. For this purpose, concrete blocks containing post-tensioning ducts that include voids were produced and IE and UE tests were carried out to locate the voids. Moreover, apart from the other studies in literature, effect of thickness of the metal ducts on phase change of the ultrasonic signal was determined. As a result of the study, along with successful void visualization, material characterization by means of acoustic impedance characteristics of air and steel was made. © 2018 Gazi Universitesi Muhendislik-Mimarlik. All rights reserved.en_US
dc.identifier.doi10.17341/gazimmfd.406789
dc.identifier.endpage176en_US
dc.identifier.issn1300-1884
dc.identifier.issn1300-1884en_US
dc.identifier.issue1en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage167en_US
dc.identifier.urihttps://doi.org/10.17341/gazimmfd.406789
dc.identifier.urihttps://hdl.handle.net/11454/25221
dc.identifier.volume33en_US
dc.indekslendigikaynakScopusen_US
dc.language.isotren_US
dc.publisherGazi Universitesi Muhendislik-Mimarliken_US
dc.relation.ispartofJournal of the Faculty of Engineering and Architecture of Gazi Universityen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectElastic waveen_US
dc.subjectImpact-echoen_US
dc.subjectUltrasonic-echoen_US
dc.subjectVoid detectionen_US
dc.titleImaging of voids in concrete by impact-echo and ultrasonic-echo methods [Betondaki boşlukların darbe-eko ve ultrasonik-eko yöntemleri ile görüntülenmesi]en_US
dc.typeArticleen_US

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