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Measurement of Concrete Thickness with Antenna Frequency Variation of Radar
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 Title & Authors
Measurement of Concrete Thickness with Antenna Frequency Variation of Radar
Rhim, Hong-Chul; Lee, Yoon-Sik; Woo, Sang-Kyun; Song, Young-Chul;
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Ground Penetrating Radar (GPR) is a powerful equipment with a wide range of applications in the nondestructive testing of concrete. It is useful for measuring the depth of concrete and locating steel bars and delaminations embedded in concrete. Among those inspections, it is the basis of detecting the damage of concrete structures to measure the depth of concrete. The purpose of this study is to measure the thickness of concrete member with antenna frequency variation. For this study, a series of experimental work has been conducted to evaluate the capability of Ground Penetrating Radar (GPR) system in measuring concrete thickness. Three antenna of 900 MHz, 1,000 MHz, and 1,500 MHz were used in the experiments for laboratory size specimens, and 100 MHz antenna has been used for a complex large size specimen. In all cases, the data acquired from GPR equipment were signal-processed, and the thickness of concrete was successfully measured. Moreover, the concrete depths which can be measured using the each frequency of antenna used in this experiment were found. Also, a foundation could be provided for the possible research for measuring the thickness of concrete using GPR through this research,
ground penetrating radar (GPR);concrete;thickness;frequency;
 Cited by
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