Transactions, SMiRT-23 Manchester, United Kingdom - August 10-14, 2015 Division VIII, Paper ID 219 AGEING MANAGEMENT PLATFORM FOR FINNISH NPP CONCRETE INFRASTRUCTURE Miguel Ferreira 1 , Fahim Al-Neshawy 2 , and Esko Sistonen 3 1 Senior Scientist, VTT Technical Research Centre of Finland, Lifetime Management Area, Finland 2 Project Researcher, Aalto University, School of Engineering, Department of Civil and Structural Engineering, Finland 3 Post-doctoral Researcher, Aalto University, School of Engineering, Department of Civil and Structural Engineering, Finland ABSTRACT It is possible that many NPPs will be able to operate longer than their operational design lives, provided appropriate and proven ageing management measures are implemented in a timely manner. As a result, attention from the regulators and the utilities has been focused on the ageing of buildings and infrastructures of NPPs. In Europe approximately a third of the operational reactors are within a few years of, or older than, their original design lifetimes. In Finland, the VVER reactors have been granted a licence extension up to 50 years of operation, whereas the BWR reactors operating license has been renewed for a 60 year lifetime. All reactors have to be subject to a safety evaluation every 10 years. Strategies to manage and reduce the consequences of the concrete infrastructure ageing are also currently under development in many fields of civil engineering. Here is presented the MANAGE research project (funded by SAFIR2014). In this project an ageing management platform (AMP) has been developed for Finnish NPPs. The AMP consists of the central database and a group of analysing and planning tools which interact with the database. Both can be used during different phases in the lifetime of a plant: design, operation, inspection, monitoring, maintenance and repair of structures. The AMP consists of the following applications: document archive visualization; condition assessment database (archived reports and documents, inspection reports, etc.); and service-life assessment (ServiceMan). INTRODUCTION Ageing management is important part of safety management systems of nuclear power plants (NPP). The main objective of ageing management is to increase knowledge about time-dependent deterioration processes affecting the systems, structures and components (SSC), throughout the NPP’s service life. Comprehensive knowledge is a pre-requisite to prevent ageing related failures. Therefore, it is imperative that relevant data is collected, stored and analysed systematically. While a NPP is in service, numerous ageing related events occur which may have an influence on the performance of SSC. Relevant events may be malfunction, maintenance results, operational experience, results of condition assessment, etc. (Schoeckle et al. 2014). Based on the IAEA Safety Guide NS-G-2.12 (2009) for ageing management systems addresses both physical ageing of structures, systems and components (SSC), and their obsolescence. Effective ageing management is in practice accomplished by coordinating existing programmes, including maintenance, in-service inspection and surveillance, as well as operations, technical support programmes (including analysis of any ageing mechanisms) and external programmes such as research and development. This requires the use of a systematic approach to managing ageing that provides a framework for coordinating all programmes and activities relating to the understanding, control, monitoring and mitigation of ageing effects of the plant component or structure (Vesikari et al. 2011).