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Title: Activities in Support of Continuing the Service of Nuclear Power Plant Safety-Related Concrete Structures

Nuclear power plant (NPP) concrete structures are described. In-service inspection and testing requirements in the U.S. are summarized. The license renewal process in the U.S. is outlined and its current status provided. Operating experience related to performance of the concrete structures is presented. Basic components of a program to manage aging of the concrete structures are identified and described: (1) Degradation mechanisms, damage models, and material performance; (2) Assessment and remediation: i.e., component selection, in- service inspection, non-destructive examinations, and remedial actions; and (3) Estimation of performance at present or some future point in time: i.e., application of structural reliability theory to the design and optimization of in-service inspection/maintenance strategies, and determination of the effects of degradation on plant risk. Finally, areas are noted where additional research would be of benefit to aging management of nuclear power plant concrete structures.
  1. ORNL
Publication Date:
OSTI Identifier:
DOE Contract Number:
Resource Type:
John Wiley and Sons Inc., Hoboken, NJ, USA
Research Org:
Oak Ridge National Laboratory (ORNL)
Sponsoring Org:
Country of Publication:
United States
ging; codes and standards; condition assessment; degradation; in-service inspection; license renewal; non-destructive testing; reinforced concrete; repair; structural reliability