Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/9189

TitlePractical implications of GPR investigation using 3D data reconstruction and transmission tomography
Author(s)Topczewski, Lukasz
Fernandes, Francisco Manuel Carvalho Pinto
Cruz, Paulo J. S.
Lourenço, Paulo B.
KeywordsNDT
GPR
3D reconstruction
Tomography
Concrete
Masonry
Maintenance
Inspection
Issue date2007
PublisherPalgrave Macmillan
JournalJournal of Building Appraisal
Citation“Journal of Building Appraisal”. ISSN 1742-8262. 3:1 (2007) 59-76.
Abstract(s)Non-destructive investigation using ground penetrating radar is becoming more popular in the inspection of civil structures. Currently, traditional 2D imaging is used as a preliminary tool to fi nd possible areas of interest for more detailed inspection, which can be accomplished by more advanced techniques like 3D image reconstruction or tomography. In this paper, a general overview of the work done at University of Minho regarding these techniques is presented, together with their limitations and advantages over typical radargrams, with implications for civil engineering applications. For this purpose, data acquisition on two large masonry walls and one large concrete specimen have been carried out, using refl ection mode, 3D reconstruction and transmission tomography. The specimens have been specially built for non-destructive inspection techniques testing, incorporating different materials and internal voids. Radar tomography and 3D image reconstruction techniques provided much more detailed information about structural integrity and shapes and location of the voids, when compared to 2D imaging originally used for potential target identification.
TypeArticle
URIhttp://hdl.handle.net/1822/9189
DOI10.1057/palgrave.jba.2950060
ISSN1742-8262
1744-9545
Publisher versionwww.palgrave-Journals.com/jba
Peer-Reviewedyes
AccessOpen access
Appears in Collections:CEC-EST - Artigos em Revistas Internacionais

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