Non-destructive testing is one of the most important means which supervise, diagnose and evaluate the quality of the reinforced concrete. The testing results will be important gist of preservation and maintenance of the concrete structure.
In view of the complicated property of the reinforced concrete and the limitation of testing site environment, some routine testing method such as, for example, ultrasonic testing, pulse-echo testing and infrared ray testing, can’t be put to use or obtain scheduled testing purpose. Ground penetrating radar (or GPR for short) is a non-destructive testing technique of non-metallic structure and it has been widely applied in engineering and environment surveys.
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