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Study of the dielectric gradient values of reinforced concrete sample by considering radar measurements in an inverse problem

Abstract : The goal of this study is to develop a tool that will evaluate the moisture content gradient in the depth of reinforced concretes in the context of building safety. The monitoring of ageing phenomena, such as the corrosion of steel reinforcements, depends on the amount of water and on its gradient as they are directly related to the dielectric values of the concrete. In this paper, to obtain these values, we propose to solve an inverse problem for reinforced concrete. First, an experimental device based on radar measurements is proposed with its 3D numerical model. Next, we describe an inverse process to determine a dielectric profile according to the depth and validate it on measured data obtained for control samples.
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https://hal.archives-ouvertes.fr/hal-02869515
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Submitted on : Monday, June 22, 2020 - 10:08:05 AM
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Xavier Ferrieres, Gilles Klysz, Vincent Guihard, Marius Albrand. Study of the dielectric gradient values of reinforced concrete sample by considering radar measurements in an inverse problem. Inverse Problems in Science and Engineering, Taylor & Francis, 2020, pp.1-15. ⟨10.1080/17415977.2020.1763339⟩. ⟨hal-02869515⟩

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