This paper presents an example of monitoring the corrosion process with NDT techniques. The
impressed current technique was used for accelerating reinforcement corrosion in a large-sized concrete slab
with chloride contamination. Periodic NDT-CE inspections were carried out making use of ground
penetrating radar (GPR), ultrasonic echo array and half-cell potential measurement. The work presents an
example of monitoring the corrosion process with NDT techniques and shows the way to the ultimate goal of
finding objective tools to evaluate the corrosion state. The work was carried out during the Initial Training
Network SmartEN, funded by the European Commission.