Abstract
Nondestructive testing of concrete structures plays a vital role in ensuring its safety and service life. In this paper, two common nondestructive testing techniques for concrete structures, ultrasonic testing and ground penetrating radar testing, are compared and analyzed. The purpose of this study was to evaluate and compare the effectiveness, limitations, and applicability of these two methods for detecting common defects in concrete, such as cracks and corrosion of rebar. But both ultrasonic detection and ground-based radar have their own advantages and limitations. In some cases, the two methods can be combined to provide complementary advantages and improve the accuracy of the assessment.
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