Reference : Detection of thin layers into concrete with static and CMP measurements
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Civil engineering
http://hdl.handle.net/2268/126234
Detection of thin layers into concrete with static and CMP measurements
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 >]
Jun-2012
2012 14th International Conference on Ground Penetrating Radar (GPR)
IEEE
534-539
Yes
No
International
978-1-4673-2663-6
978-1-4673-2661-2
978-1-4673-2660-5
The 14th International Conference on Ground Penetrating Radar
du 4 au 8 juin 2012
Tongji University
Shanghai
China
[en] Ground penetrating radar ; thin layers ; concrete ; reflection coefficient
[en] Most concrete bridge decks contain a thin waterproofing layer, whose complex GPR signature can affect the detection of disorders or delaminations into the slab. In this study, we characterized the detection limits of our 2.3 GHz antenna for the detection of thin layers, with static and CMP
measurements. In this last configuration, we showed that the radiation pattern and the reflection coefficient estimation are key parameters to use the inversion of the amplitude versus offset (AVO) curves for the estimation of the layer parameters. The theoretical results were compared to the results of FDTD simulations, performed with GprMax2D, and to laboratory measurements, performed on concrete slabs or sand containing thin layers.
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/126234

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