A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
NDT validation facility at the Florida Department of Transportation
Acoustic as well as electromagnetic methods can provide a valuable tool for the quality assessment of concrete bridges. For the efficient application in the field, the capabilities of the different methods in solving a specific testing problem have to be known. In a research project funded by the Florida Department of Transportation (FDOT) a first stage facility for the calibration and validation of NDT methods has been established. A test frame with two automated scanners has been designed and built, in which concrete blocks with artificial defects or testing problems can be tested by NDT methods such as ultrasonic-echo, impact-echo, covermeter or Ground Penetrating Radar. The most relevant testing problems dealt with in this project are the location of reinforcement steel, tendon duct inspections and thickness measurements. Furthermore, the capabilities and limitations of NDT methods in determining elastic parameters have also been investigated. 2D and 3D imaging techniques as well as signal processing such as the Synthetic Aperture Focusing Technique (SAFT) applied to the data provide a vivid representation of the results and make the interpretation easier and more intuitive. The capabilities and limitations of the different methods regarding the different testing problems are discussed.
NDT validation facility at the Florida Department of Transportation
Acoustic as well as electromagnetic methods can provide a valuable tool for the quality assessment of concrete bridges. For the efficient application in the field, the capabilities of the different methods in solving a specific testing problem have to be known. In a research project funded by the Florida Department of Transportation (FDOT) a first stage facility for the calibration and validation of NDT methods has been established. A test frame with two automated scanners has been designed and built, in which concrete blocks with artificial defects or testing problems can be tested by NDT methods such as ultrasonic-echo, impact-echo, covermeter or Ground Penetrating Radar. The most relevant testing problems dealt with in this project are the location of reinforcement steel, tendon duct inspections and thickness measurements. Furthermore, the capabilities and limitations of NDT methods in determining elastic parameters have also been investigated. 2D and 3D imaging techniques as well as signal processing such as the Synthetic Aperture Focusing Technique (SAFT) applied to the data provide a vivid representation of the results and make the interpretation easier and more intuitive. The capabilities and limitations of the different methods regarding the different testing problems are discussed.
NDT validation facility at the Florida Department of Transportation
ZfP-Bewertungsmöglichkeit beim Florida Department of Transportation
Algernon, D. (author) / Hiltunen, D.R. (author) / Ferraro, C.C. (author) / Ishee, C.A. (author)
2011
8 Seiten, 11 Bilder, 12 Quellen
Conference paper
Storage medium
English
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