Year: 2023
Type: conference-paper
Abstract: Reinforced concrete is the most widely used building material but its durability in terms of concrete cover performance and corrosion of steel rebar is still a key point to be studied. To address this topic, within the frame of the national project PERFDUB, two series of eleven reinforced concrete specimens (with metric dimensions) were cast with innovative concrete mixes representative of the French experience, two shapes of rebar and two concrete covers. Then, these specimens were exposed in two natural exposure sites, one in Epernon for carbonation (XC4) and a second one in La Rochelle in the Atlantic Ocean in a tidal zone for chloride ions (XS3m). Their corrosion was carried out using non-destructive testing. In addition, in order to follow the corrosion evolution more accurately in a continuous way, two series of three specimens were casted with embedded sensors and were exposed in two other outdoor sites in Marne-la-Vallée (XC4) and in Eqiom facility (XS3e). The first results of this 20-year project in terms of corrosion of these reinforced concrete specimens obtained with laboratory and field equipment and with monitoring are presented in this paper.
Institutions: Université Gustave Eiffel, Centre National de la Recherche Scientifique, Ministère de la Culture, Laboratoire de Recherche des Monuments Historiques, Muséum national d'Histoire naturelle, Centre de Recherche sur la Conservation, Centre d'Études et de Recherches de l'Industrie du Béton, Laboratoire des Sciences de l'Ingénieur pour l'Environnement, La Rochelle Université, Eiffage (France)
Language: English
Subfield: Civil and Structural Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W4387399696