Reference : GPR Limits for Thin Layers in Concrete Detection: Numerical and Experimental Evaluation
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Civil engineering
Engineering, computing & technology : Electrical & electronics engineering
http://hdl.handle.net/2268/86487
GPR Limits for Thin Layers in Concrete Detection: Numerical and Experimental Evaluation
English
Van der Wielen, Audrey mailto [Université de Liège - ULg > Département Argenco : Secteur GeMMe > Matériaux de construction non métalliques du génie civil >]
Courard, Luc mailto [Université de Liège - ULg > Département Argenco : Secteur GeMMe > Matériaux de construction non métalliques du génie civil >]
Nguyen, Frédéric mailto [Université de Liège - ULg > Département Argenco : Secteur GEO3 > Géophysique appliquée >]
Mar-2011
Progress In Electromagnetics Research Symposium Proceedings, Marrakesh, Morocco, March 20-23, 2011
The Electromagnetics Academy
1804-1807
Yes
No
International
978-1-934142-16-5
Cambridge
MA
29th Progress In Electromagnetics Research Symposium
du 20 mars 2011 au 23 mars 2011
PIERS
Marrakech
Maroc
[en] GPR ; Thin bed ; FDTD simulation
[en] The Ground Penetrating Radar (GPR) is a nondestructive technique increasingly
used in civil structures inspection. In those structures, thin layers, presenting a relatively small thickness compared to their area, are common and induce a complex multiple reflection scheme of the GPR waves on the two interfaces limiting the layer. The theoretical relationships predicting the reflected amplitude are based on multiple simplifying assumptions that are not matched by most commercial GPR impulse machines. In the first part of this study, we confronted the theoretical curves with numerical finite difference simulations performed with GprMax2D, with both a continuous sine wave and a realistic pulse derived from measurements. In the second part, we performed experiments on two concrete slabs, separated with an air space of variable thickness. The measured amplitude appeared to be different from the predictions, probably due to surface noise.
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/86487
http://piers.org/piersproceedings/piers2011MarrakeshProc.php

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Restricted access
PIERSarticle.pdfAuthor preprint459.74 kBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.