Ultrasonic measurements of undamaged concrete layer thickness in a deteriorated concrete structure

A. Demcenko, Roy Visser, Remko Akkerman

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Ultrasonic wave propagation in deteriorated concrete structures was studied numerically and experimentally. Ultrasonic single-side access immersion pulse-echo and diffuse field measurements were performed in deteriorated concrete structures at 0.5 MHz center frequency. Numerically and experimentally it is shown that the undamaged layer thickness in a deteriorated concrete structure is measurable using pulse-echo measurements when the deterioration depth is larger than the wavelength. The signal overlapping, which occurs in the thin deteriorated layers, can be overcome using diffuse field measurements or a pattern matching technique. The ultrasonic experimental data were shown to be in good agreement with the widely used phenolphthalein test for concrete degradation.
Original languageEnglish
Pages (from-to)63-72
JournalNDT & E international
Publication statusPublished - 2016



  • METIS-312135
  • IR-97630

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