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Structural components are plant-specific, stationary and can not be replaced in most cases. Structures may be subject to time-dependent changes that impact their ability to withstand various degradation modes. Over the years, concrete in power plants suffers from loss of material due to abrasion, freeze-thaw and corrosion. Cracks are formed due to settlement, fatigue, rebar corrosion, shrinkage and changes in the material properties caused by creep or alkali-silica reaction. If not detected in time, concrete damages often require expensive repairs.


COMSY-CIVIL – aging management and assessment of cracks in concrete structures – includes degradation assessment as well as prioritization of inspection, trending and repair activities
. The strategy for the surveillance of degradation experienced by civil structures focuses on condition monitoring, including management of data regarding environmental conditions, specification of materials and design requirements resulting in lifetime predictions. COMSY-CIVIL (Condition-Oriented aging and plant life Management SYstem) supports crack identification, systematic documentation and trending. This software evaluates the relevant degradation mechanisms for civil structures based on the stress factors like e.g. elevated temperatures, low temperatures, irradiation and aggressive environment. COMSY-CIVIL performs a degradation assessment, a prioritization of maintenance activities and the management of inspection results. It also provides predictions for the remaining service life of civil structures. Furthermore, AREVA NP offers Civil Structure Integrity Assessment functions.

Your benefits

  • A dedicated software for aging surveillance of civil structures helps to reduce maintenance effort while providing comprehensive awareness of the technical condition
  • COMSY-CIVIL supports industry best practices and compliance with safety requirements

Interested in Crack Assessment in Concrete Structures?

AREVA GmbH