ABSTRACT
For the operation of most existing concrete structures, the typical situation is that maintenance and repairs are mostly reactive, and the need for taking appropriate measures is mostly realized at a very advanced stage of deterioration (Chapter 2). For chloride-induced corrosion, repairs at such a stage are then both technically difficult and disproportionately costly compared to that of carrying out regular condition assessments and preventive maintenance during operation of the structures. Therefore, for all major concrete infrastructures where high safety, performance, and service life are of special importance, regular condition assessment and preventive maintenance should be carried out. Not only is this important from a technical and economical point of view, but also this has shown to be a very good strategy from a sustainability point of view (Chapter 11).
