The effect of reinforcement corrosion on the structural behaviour of prestressed bridges in the Norwegian coastal regions

Abstract

Prestressed concrete (PC) is one of the main structural materials used in Norway for bridge structures. Prestressed and precast concrete beams were even used for building the historical Atlantic Road, which has the status of a National Tourist Route and is of strategic importance for the infrastructure. Bridges located along the Norwegian coast are exposed to an aggressive marine environment, containing chlorides, which can be the cause of reinforcement corrosion. Severe deterioration of prestressed concrete structures may lead to serious consequences, including sudden and brittle failure. Reliable assessment of existing damages, as well as prediction of residual behaviour and service life is crucial for PC.