A new way to check corrosion of steel in concrete
For infrastructure built in reinforced concrete, the corrosion of the steel in the concrete is a major challenge. How do in-service environmental conditions like CO2 influence the stability and failure (corrosion) of the passive layer on steel rebar embedded within concretes? The EU-funded PERFoRM project will answer this question. It will apply non-destructive techniques to perform in situ diagnosis of steel-reinforced concretes and in situ tracing of aggressive ions. PERFoRM will also apply innovative electrochemical approaches to determine corrosion rates narrowly resembling in-service concrete structures. The project will use environmental x-ray photoelectron spectroscopy (XPS) to perform advanced characterisation of the passive layer formation mechanisms.