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Ultrasonic Imaging of Concrete Members using an Array System

 
: Krause, M.; Mielentz; F.; Milman, B.; Wiggenhauser, H.; Müller, W.; Schmitz, V.

Alampalli, S.:
Structural Materials Technology IV. An NDT Conference 2000
Lancaster/Pa.: Technomic Publishing, 2000
ISBN: 1-566-76949-3
S.365-370
Structural Materials Technology NDT Conference <4, 2000, Atlantic City/N.J.>
Englisch
Konferenzbeitrag
Fraunhofer IZFP ()
ultrasonic echo; array technique; SAFT; Synthetic Aperture Focusing Technique; tunnel; reinforced concrete; prestressing duct

Abstract
The use of an ultrasonic array system is described, which can be used combined with 3D reconstruction calculations. In this way ultrasonic reflection and backscatter from the inside of concrete members can be imaged and interpreted. The application of the system is demonstrated for two examples: Measuring the concrete cover of utility pipes in a tunnel and the examination of transversal ducts in a bridge plate.

: http://publica.fraunhofer.de/dokumente/N-2675.html