ABSTRACT
Corrosion monitoring systems is still relatively new. The first steps were taken in the late 80ties where build-in sensors for new reinforced concrete structures were developed.
In the late 90ties the principle from the build-in sensors were transferred to post-mounted corrosion sensors for existing structures. With these sensors the ingress of the “corrosion front” into the concrete cover is measured. This is especially useful for large marine bridges, where the operation and maintenance costs can be reduced significantly by applying a preventive repair strategy before deterioration commences. In contrary to conventional visual inspection, a corrosion monitoring system will provide the owner with detailed information about the current state of deterioration inside the structure. The corrosion monitoring technique will ensure detection of the critical initial stages of deterioration and unacceptable rates of deterioration can be detected at an early stage, allowing the owner to make cost-optimal maintenance decisions.
