The DIAMOND project aims to produce a new corrosion rate measurement device first dedicated to reinforced concrete structure. It consists on a simple geometry (no guard ring) and is based on corrosion rate measurement on a single point right under the counter electrode which is the most polarized zone. The particular point is referred as the point of interest (POI). Several corrosion assessments have been developed and are mainly employed on reinforced concrete structure: resistivity measurement, half-cell potential or linear polarization resistance (LPR) measurement. LPR method, initially applied to reinforced concrete structure, offers the advantage to provide the corrosion rate while other techniques only give a corrosion risk. The LPR value can be linked to the corrosion rate thanks to the Stern-Geary equation if hypotheses are considered.
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