Nondestructive Evaluation of Thick Concrete Using Advanced Signal Processing Techniques

Clayton, Dwight A¹  Barker, Alan M¹  Santos-Villalobos, Hector J¹  Albright, Austin P¹  Hoegh, Kyle¹  Khazanovich, Lev¹ 

[1] Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

关键词: concrete NDE;    nuclear power;    nondestructive evaluation;    thick;    life extension;   

DOI  :  10.2172/1221739
RP-ID  :  ORNL/TM--2015/428
PID  :  OSTI ID: 1221739
Others  :  Other: RC0304000
Others  :  NERC006

美国|英语

来源: SciTech Connect

【 摘 要 】

The purpose of the U.S. Department of Energy Office of Nuclear Energy???s Light Water Reactor Sustainability (LWRS) Program is to develop technologies and other solutions that can improve the reliability, sustain the safety, and extend the operating lifetimes of nuclear power plants (NPPs) beyond 60 years [1]. Since many important safety structures in an NPP are constructed of concrete, inspection techniques must be developed and tested to evaluate the internal condition. In-service containment structures generally do not allow for the destructive measures necessary to validate the accuracy of these inspection techniques. This creates a need for comparative testing of the various nondestructive evaluation (NDE) measurement techniques on concrete specimens with known material properties, voids, internal microstructure flaws, and reinforcement locations.