GIMA ground penetrating radar system for monitoring concrete bridge decks |
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| Authors: | Dryver Huston Jing Qiong Hu Kenneth Maser William Weedon Chris Adam |
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| Institution: | 1. Department of Mechanical Engineering, University of Vermont, Burlington, VT 05405 USA;2. Infrasense, 14 Kensington Road, Arlington, MA 02174 USA;3. Applied Radar Analysis, 14 Union Street, Suite 2, Watertown, MA 02172 USA;4. Altran Materials Engineering, 451 D Street, S. Boston, MA, 02210 USA;1. Department of Mechanical Engineering, Sirjan University of Technology, 78137-33385 Sirjan, Islamic Republic of Iran;2. Department of Mechanical Engineering, Iran University of Science and Technology, Tehran, Islamic Republic of Iran;1. Department of Mechanical Engineering, Shahid Bahonar University of Kerman, Kerman, Islamic Republic of Iran;2. Department of Mechanical Engineering, Sirjan University of Technology, 78137-33385 Sirjan, Islamic Republic of Iran;1. Chongqing Key Laboratory of Modern Photoelectric Detection Technology and Instrument, School of Optoelectronic Information, Chongqing University of Technology, No. 69 Hongguang Road, Banan District, Chongqing 400050, PR China;2. The Australian School of Advanced Medicine, Macquarie University, 2 Technology Place, Macquarie Park, NSW 2113, Australia;3. Sichuan Mianyang 404 Hospital, No. 56 Yuejing Road, Fucheng District, Mianyang, Sichuan Province 400050, PR China;1. Department of Mechanical Engineering, Lahijan Branch, Islamic Azad University, P.O. Box 1616, Lahijan, Iran;2. Department of Mechanical Engineering, University of Guilan, P.O. Box 3756, Rasht, Iran |
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| Abstract: | Ground Penetrating Radar (GPR) has been investigated as a non-destructive method for evaluating damage in concrete structures. However, the commercially available techniques are limited to detection of gross quantities of deterioration, due to the limited resolution of the system. The objective of this research is to evaluate a ground penetrating radar system with a novel Good Impedance Match Antenna (GIMA) for concrete structural assessment. This system has the capacity to detect concrete cracks as small as 1 mm thick, while being able to reflect from and detect features at depths of up to 360 mm. Laboratory results of testing of the GIMA antenna by using a step-frequency and a high-frequency impulse system are presented. The experimental results reveal that the GIMA antenna is capable for use in frequency ranges, at least as broad as 500 Mhz to 6 GHz for the step-frequency and 1 to 16 GHz for the high-frequency impulse system. |
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| Keywords: | GPR GIMA antenna Non-destructive evaluation Infrastructure monitoring |
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