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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Betelu, Stéphanie
Bureau de Recherches Géologiques et Minières
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (28/28 displayed)
- 2024Optimization of experimental conditions of PFOA defluorination using DMSO/NaOH mixture
- 2024Over a year follow-up of parameters of a cemento-bentonitic filling material (CBFM) and of the corrosion potential of a carbon steel lining submerged by the CBFM, in an underground gallery cell
- 2024Long term monitoring of physical and chemical parameters of a cemento-bentonitic filling material (CBFM) and of corrosion potential ofa horizontal pipe made of carbon steel, submerged by the CBFM intoa sealed cell of underground gallery
- 2024Influence of microstructure and pore saturation in measuring corrosion rates of a carbon steel API 5L X65 in contact with cement grout in future nuclear waste disposal program
- 2023Numerical Insights into the Ability of Indirect Galvanostatic Pulse in Wenner Configuration to Locate Corroding Areas in Macrocell Corrosion of Steel in Concrete
- 2023Corrosion and inhibition of carbon steel XC38 in a standardized reconstituted geothermal water (SRGW) at 100°C and 120 bars of pressure in the absence or presence of biosourced inhibitors
- 2023Inversion of non-invasive resistivity measurements in fourelectrodes configuration for corrosion characterization in reinforced concrete samples
- 2023Corrosion control of ruthenium oxy-hydroxide coating for the development of robust pH sensors: observation and monitoring of the near field of a nuclear waste disposal site
- 2023Influence of polysulfide radicals on the mechanisms and intensity of corrosion of a carbon steel API 5L X65 in contact with cement grout in future nuclear waste disposal program ; Influence des radicaux de polysulfures sur les mécanismes et l'intensité de la corrosion d'un acier au carbone API 5L X65 en contact avec un coulis de ciment dans un futur programme de stockage de déchets nucléaires
- 2023Corrosion Current Density of API 5L X65 Carbon Steel in Contact with Natural Callovian-Oxfordian Clay Pore Water, Assessed by Various Electrochemical Methods over 180 Dayscitations
- 2023Influence of polysulfide radicals on the mechanisms and intensity of corrosion of a carbon steel API 5L X65 in contact with cement grout in future nuclear waste disposal program
- 2022Comparative study of the effectiveness of organic petro-or biosourced surfactants in inhibiting carbon steel corrosion in a standardized reconstituted geothermal water (RGW)
- 2022Assessement of electrochemical behaviour and of corrosion current density of the carbon steel API 5L X65 in contact with cement grout in a nuclear waste disposal program
- 2022Corrosion current density evolution of the carbon steel API 5L X65 in contact with natural callovo-oxfordian water assessed by various electrochemical methods
- 2022Corrosion current density evolution of the carbon steel API 5L X65 in contact with natural callovo-oxfordian water assessed by various electrochemical methods
- 2022Assessement of electrochemical behaviour and of corrosion current density of the carbon steel API 5L X65 in contact with cement grout in a nuclear waste disposal program
- 2022Comparative study of the effectiveness of organic petro-or biosourced surfactants in inhibiting carbon steel corrosion in a standardized reconstituted geothermal water (RGW)
- 2022Mechanism and kinetics of reductive dechlorination of hexachlorobutadiene and hexachloroethane by bimetallic Pd/Fe microparticles using an indirect and continuous monitoring of iron corrosion
- 2022CORROSION DENSITY OF THE CARBON STEEL API 5L X65 IN CONTACT WITH CALLOVO-OXFORDIAN CLAY PORE WATER ASSESSED BY USING VARIOUS ELECTROCHEMICAL METHODS
- 2022CORROSION DENSITY OF THE CARBON STEEL API 5L X65 IN CONTACT WITH CALLOVO-OXFORDIAN CLAY PORE WATER ASSESSED BY USING VARIOUS ELECTROCHEMICAL METHODS
- 2022Mechanisms and kinetics of carbon steel corrosion/scaling and inhibition in actual or reconstituted and treated geothermal waters
- 2021Mechanisms and kinetics of carbon steel corrosion/scaling and inhibition in actual or reconstituted and treated geothermal waters
- 2018Exploration into the ionic exchanges in the Ni/Fe Lamellar Double Hydroxide by in-situ techniques under polarization
- 2017Intercomparison of Ta and Ti solid-electrodes for pH measurements under oxic and anoxic conditions in reconstituted waters of a future nuclear waste disposal
- 2013Improved monitoring of the reductive dechlorination of PCE in polluted soils by using geophysical and electrochemical measurements carried out in columns
- 2012Mechanistic and kinetic study of pyrite (FeS2)-hydrogen (H2) interaction at 25°C using electrochemical techniques
- 2012Mechanistic study of pyrite reduction by hydrogen in NaCl 0.1 M at 90°C using electrochemical techniques
- 2012H-terminated polycrystalline boron doped diamond electrode for geochemical sensing into underground components of nuclear repositories
Places of action
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conferencepaper
Inversion of non-invasive resistivity measurements in fourelectrodes configuration for corrosion characterization in reinforced concrete samples
Abstract
International audience ; In the context of corrosion diagnosis in reinforced concrete (RC), non-invasive four point electrical measurements represent, by many aspects, an interesting alternative to classical three-point characterization with rebar connection. As a matter of fact, the four-point surface measurement without connection to the rebar, is known to be sensitive to the rebar corrosion. Yet, this rebar effect was first seen as a drawback to the method, initially meant to provide a reliable estimation of the structure durability by assessing the concrete resistivity. The first advantage of this method, namely its absence of rebar connection, comes with a complexification of the current paths within the RC structure. Part of the current diffuses only in the concrete while a residual part will penetrate in the rebar depending on its corrosion current density jcorr. The determination of the rebar corrosion through that kind of measurement is therefore less straightforward than for three-point measurements. However, by multiplying the acquisition points and running an Electrical Resistivity Tomography (ERT), it becomes conceivable to spatially image the RC structure. The four-point resistivity data may be inverted in order to recover both the instantaneous corrosion rate of the rebar as well as the matrix electrical properties and heterogeneities. We developed a laboratory ERT experiment (CorImager®-device from IRIS Instruments) designed to sequentially run multiple four-point measurements on prismatic reinforced mortar specimens of dimensions 10 x 10 x 40 cm3 . The device, composed on the one hand of 96 electrodes distributed over the 4 faces of a corset like antenna (see Fig.1), and on the other hand of an acquisition central enabling multi- channel measurement and switching, provides us with a 3D investigation of our probe. Our samples collection gathers about thirty specimens, most of them armed, differing in the mix or in the rebar preparation. Some have been specifically designed to test the widely ...