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dc.contributor.authorSantos Assunçao, Sonia
dc.contributor.authorKrishna, Shanker
dc.contributor.authorPérez Gracia, María de la Vega
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Resistència de Materials i Estructures a l'Enginyeria
dc.identifier.citationSantos Assunçao, S., Krishna, S., Perez-Gracia, V. GPR analysis of water content in concrete specimen - laboratory test. A: European Meeting of Environmental and Engineering Geophysics. "Earthdoc - Proceedings of the 22nd European Meeting of Environmental and Engineering Geophysics - Near Surface Geosciences". Barcelona: 2017, p. 1-4.
dc.description.abstractApplications of Ground Penetrating Radar (GPR) in civil engineering context are popular and it has been widely used to characterize the media in terms of structural arrangement and pathologies. This work presents some tests carried out under laboratory conditions on a concrete slab. The aim of this study is to evaluate the moisture content in a homogeneous medium (concrete) using data obtained with a 1.6 MHz GPR centre frequency antenna. The evaluation process includes detailed analysis of the signal in both time and frequency domains. The key parameters are amplitude of surface reflection, changes in the centre frequency and attenuation of signal. The central frequency decreases in the A-scans obtained from zones with high water content. The amplitude of the first signal (reflection on the surface of the specimen) exhibits an increment. These results could be useful in the assessment of foundations and slabs, as well as in the evaluations of buried geological channels.
dc.format.extent4 p.
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil::Geotècnia
dc.subject.lcshGround penetrating radar
dc.subject.otherwater content
dc.subject.othernon-destructive testing
dc.titleGPR analysis of water content in concrete specimen - laboratory test
dc.typeConference lecture
dc.contributor.groupUniversitat Politècnica de Catalunya. GIES - Geofísica i Enginyeria Sísmica
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
local.citation.authorSantos Assunçao, S.; Krishna, S.; Perez-Gracia, V.
local.citation.contributorEuropean Meeting of Environmental and Engineering Geophysics
local.citation.publicationNameEarthdoc - Proceedings of the 22nd European Meeting of Environmental and Engineering Geophysics - Near Surface Geosciences

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