As concrete structures age deterioration processes may become a serious source for structural degradation. For marine concrete structures such as bridges, quays and offshore structures, corrosion is usually the most predominant deterioration process and in most cases, ingress of chlorides is the main contributor to corrosion. The objective of the project is to identify an inspection and maintenance strategy, which in the most cost efficient way will ensure that requirements put on the structure are fulfilled and can be documented. Features The project focuses on the description of a methodology for risk based inspection and maintenance planning for concrete structures subject to chloride induced corrosion. The methodology can, however, be adapted to other types of deterioration processes to the extent it is possible to establish a hypothesis for the prediction of the considered deterioration as function of time.
Risk is defined as the product of the probability and the consequence of a considered event.
Risk based planning of inspection and maintenance activities aims to minimise the costs of service life inspection and maintenance costs and at the same time aims to ensure that requirements to operation and safety of the structure are fulfilled. This is an internal project aimed at developing a service for concrete structures based on knowledge and competence in Det Norske Veritas.