4. Ageing management of civil engineering structures in nuclear power plants

4.1 For normal structures: conventional maintenance

An ageing management program is a set of integrated engineering, operating and maintenance actions designed to control the degradation of systems, structures and components due to ageing within acceptable limits. Ageing management of concrete structures in nuclear power plants is ensured by periodic inspections of accessible areas; other techniques are used to monitor ageing in areas that are not easily accessible. This program identifies the actions and measures to be implemented at the right time to manage ageing. It should provide performance indicators to measure the effectiveness of current practices, based on assessments of the ageing and condition of concrete structures. It can include condition monitoring, periodic inspections...