Electrical resistivity tomography results analyzed with two inversion methods to determine chloride profiles on BFS concrete having very high electrical resistivity - Université Gustave Eiffel Access content directly
Journal Articles Construction and Building Materials Year : 2023

Electrical resistivity tomography results analyzed with two inversion methods to determine chloride profiles on BFS concrete having very high electrical resistivity

Abstract

Non-destructive evaluation techniques are increasingly used for the investigation of reinforced concrete structures in marine environment. In this paper, the possibility of evaluating chloride profiles by Electrical Resistivity Tomography (ERT) on Blast furnace slag (BFS) concrete at a long curing period so having high electrical resistivity was studied. This was carried out by monitoring the chloride profile for two 6years old concretes (with and without slag) during a diffusion campaign using a Non-Destructive Evaluation (NDE) methodology. The methodology is based on determining the electrical resistivity profiles by carrying out surface apparent resistivity measurements submitted to two different inversion processes. The resistivity profiles are then converted to chlorides profiles using calibration curves. The chlorides profiles were also compared by those assessed by Destructive Evaluation (DE) at three different exposure periods, which displays a high similarity between DE and NDE profiles.
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Saturday, June 1, 2024
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Saturday, June 1, 2024
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Dates and versions

hal-04310300 , version 1 (27-11-2023)

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Attribution - NonCommercial - NoDerivatives

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Mohamad Khodor El Achrafi, Stéphanie Bonnet, Géraldine Villain. Electrical resistivity tomography results analyzed with two inversion methods to determine chloride profiles on BFS concrete having very high electrical resistivity. Construction and Building Materials, 2023, 407, pp.133361. ⟨10.1016/j.conbuildmat.2023.133361⟩. ⟨hal-04310300⟩
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