A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Application of radar and ultrasonic pulse echo for testing concrete structures
Nondestructive testing of concrete structures is one of the essential task for estimating or assessing the quality. In order to validate the advanced NDT equipments like Radar and Pulse Echo, a unique large scale reinforced concrete specimen was cast at SERC, Chennai, with columns and beams of different sizes, cross section having different percentages of reinforcement. The defects such as honeycombs, cracks, delamination, presence of conduits, ducts, etc. were also incorporated while casting the large scale reinforced cement concrete specimen. In the present study, the top and bottom slabs were investigated by dividing into grid lines of 50 x 50 mm in both the direction using radar and pulse echo techniques. For radar measurements, 1.6 GHz antenna was used over the grid lines. The pulse echo technique was adopted with an antenna array of 55 KHz and the data was collected over the same grid points. Two different data analysis programs were used for the analysis of the data. This paper highlights the test results from the application of these two methods Radar and Pulse Echo on the concrete slabs. The need for automatic scanning for both the methods compared to manual measurement is highlighted. The advantages and the limitations of the test methods are also discussed with respect to this specimen.
Application of radar and ultrasonic pulse echo for testing concrete structures
Nondestructive testing of concrete structures is one of the essential task for estimating or assessing the quality. In order to validate the advanced NDT equipments like Radar and Pulse Echo, a unique large scale reinforced concrete specimen was cast at SERC, Chennai, with columns and beams of different sizes, cross section having different percentages of reinforcement. The defects such as honeycombs, cracks, delamination, presence of conduits, ducts, etc. were also incorporated while casting the large scale reinforced cement concrete specimen. In the present study, the top and bottom slabs were investigated by dividing into grid lines of 50 x 50 mm in both the direction using radar and pulse echo techniques. For radar measurements, 1.6 GHz antenna was used over the grid lines. The pulse echo technique was adopted with an antenna array of 55 KHz and the data was collected over the same grid points. Two different data analysis programs were used for the analysis of the data. This paper highlights the test results from the application of these two methods Radar and Pulse Echo on the concrete slabs. The need for automatic scanning for both the methods compared to manual measurement is highlighted. The advantages and the limitations of the test methods are also discussed with respect to this specimen.
Application of radar and ultrasonic pulse echo for testing concrete structures
Anwendung von Radar- und Ultraschall-Impulsecho zur Prüfung von Betonbauteilen
Parthasarathy, Srinivasan (author) / Murthy, S.G.N. (author) / Sangoju, Bhaskar (author) / Wiggenhauser, Herbert (author) / Ravisankar, Kapali (author) / Iyer, Nagesh R. (author) / Lakshmanan, Narayanan (author)
2009
6 Seiten, 14 Bilder, 6 Quellen
(nicht paginiert)
Conference paper
Storage medium
English
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