Against the background of huge costs for maintenance and repair it would be helpful to have a tool to assess the remaining life time of concrete structures. Deterioration is often caused by reinforcement corrosion and research projects have been carried out to develop models for the time-dependent progress of the degradation. Although these projects have resulted in several steps forward, further work is still needed. This paper presents two actual research activities which deal with modeling of reinforcement corrosion: the first one is the RILEM Technical Committee MAI, the second is a German joint research project.
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