Centre National De La Recherche Scientifique

Université De Nantes

Universidad De Los Andes

Centre National De La Recherche Scientifique-cnrs

Franck Schoefs

Emilio Bastidas Arteaga

Johann Faccelo Osma Cruz

Magda Marcela Torres Luque

Mauricio Sanchez Silva

Hamed Ameryoun

Some embodiments are directed to a system for assessing chloride concentration at one predetermined area of a porous or composite material, such as a reinforced concrete structure, including a sensor embedded in the predetermined area of the material, an analyzer connected to the sensor, and a processing module connected to the analyzer. The sensor includes two facing or coplanar electrodes, an intermediate layer arranged between the electrodes, the intermediate layer being in contact with the material of the predetermined area of the structure and including calcium aluminates. The analyzer is configured to apply an alternate current between the electrodes and output an impedance value or capacitance value of the intermediate layer. The processing module is configured to compute a chloride concentration assessment in the predetermined area of the material based on the impedance value or capacitance value outputted by the analyser.

System for assessing chloride concentration and corresponding method and sensor

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Sucé sur Erdre, France

Franck Schoefs