In this paper a coupled hygrothermal, electrochemical, and mechanical modelling
approach for the deterioration prediction in cementitious materials is briefly outlined.
Deterioration prediction is thereby based on coupled modelling of (i) chemical processes
including among others transport of heat and matter as well as phase assemblage on the nano and
micro scale, (ii) corrosion of steel including electrochemical processes at the
reinforcement surface, and (iii) material performance including corrosion- and load-induced damages
on the meso and macro scale. The individual FEM models are fully coupled, i.e.
information, such as such as corrosion current density, damage state of concrete cover, etc.,
are constantly exchanged between the models.