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Título:	Analysis of the electromagnetic signature of reinforced concrete structures for nondestructive evaluation of corrosion damage
Autor/a:	Roqueta Crusats, Gemma; Jofre Roca, Lluís; Feng, M.Q.
Otros autores:	Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. ANTENNALAB - Grup d'Antenes i Sistemes Radio
Abstract:	This paper presents a nondestructive corrosion damage detection method for reinforced concrete structures based on the analysis of the electromagnetic signature of the steel rebar corrosion. The signature of the corrosion on the scattered field upon microwave illumination is first numerically analyzed. First-order quality factor parameters, the energy and the mean propagation delay, are proposed to quantify the corrosion amount in the structure. To validate the model, low-profile ultra-wide-band antennas (3–12 GHz) are fabricated and measured. Measurements on 12 reinforced concrete samples with induced corrosion are performed, using three different antenna setups. The experiments demonstrate a good correlation between an increase in the corrosion amount with a decrease in the energy and an increase in the time delay of the propagated signal.
Abstract:	Peer Reviewed
Materia(s):	-Àrees temàtiques de la UPC::Enginyeria electrònica::Instrumentació i mesura -Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó -Reinforced concrete -Strength of materials -Corrosion -dielectric materials -microwave antennas -microwave imaging -microwave propagation -nondestructive testing -reflection -time domain analysis -Formigó armat -Resistència de materials
Derechos:	Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Tipo de documento:	Artículo - Versión publicada Artículo
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