Article Article
Ultrasonic monitoring of full-scale load experiments

Previous work has shown that ultrasonic monitoring using externally applied or embedded transducers and imaging methods based on coda wave interferometry are able to detect subtle changes in concrete elements. In this study, a limited number of embedded transducers has been used to monitor changes in several 12 m long two-span concrete beams subjected to point or linear loads until failure. The ultrasonic results showed the high sensitivity to stress changes and the nonlinear character of the associated effects. However, the ultrasonic features showed a very good correlation to several conventional monitoring parameters. For higher loads (significant amount of cracking), the technique had to be modified to cope with large wave velocity variations and high decorrelation compared to the reference signal. Using a very simple imaging procedure, the 2D stress field inside the beam has been visualized including inhomogeneities and artifact at places where cracking occurred at higher loads. The technique has the potential to be included in real time monitoring systems.



  • Karbhari, V. M.; Ansari, M. (Eds.); Structural Health Monitoring of Civil Infrastructure Systems. Woodhead Publishing, Cambridge, UK, 2009, ISBN 978-1-84569-392-3.
  • BSI. Testing concrete in structures. Determination of ultrasonic pulse velocity. BS EN 12504-4:2004 (equivalent German version: DIN EN 12504-4:2004).
  • BAW Code of Practice: Frost Resistance Tests for Concrete (MFB), Issue 2012. Bundesanstalt für Wasserbau. Available online: (accessed on 04. 04. 2018).
  • Thiele, M. Experimentelle Untersuchung und Analyse der Schädigungsevolution in Beton unter hochzyklischen Ermüdungsbeanspruchungen (Experimental investigation of fatigue process in concrete under high-cycle loading). BAM-Dissertation No. 140, Berlin, Germany, 2016. urn:nbn:de:kobv:b43-354487.
  • Planès, T., und E. Larose. "A Review of Ultrasonic Coda Wave Interferometry in Concrete". Cement and Concrete Research 53 (November 2013): 248–55.
  • Planes, Thomas, Vincent Rosseto, Eric Larose, und Ludovic Margerin. "Locating a small change in a multiple scattering environment (LOCADIF): Application to monitoring concrete." The Journal of the Acoustical Society of America 2010, 128(4), pp. 2375 ff.
  • Zhang, Y.; Planès, T.; Larose, E.; Obermann, A.; Rospars, C.; Moreau., G. Diffuse Ultrasound Monitoring of Stress and Damage Development on a 15-Ton Concrete Beam. The Journal of the Acoustical Society of America 2016 139(4), pp. 1691–1701.
  • Fröjd, Patrik, und PeterUlriksen."Continuous Wave Measurements in a Network of Transducers for StructuralHealth Monitoring of a LargeConcrete Floor Slab". Structural Health Monitoring: An International Journal 2016,15(4), pp. 403–412.
  • Niederleithinger, E.; Herbrand, M.; Müller, M. "Monitoring von Querkraftversuchen an Spannbetondurchlaufträgernmit Ultraschall und Codawelleninterferometrie (Monitoringof shear tests onprestressed concretecontinuous beams using ultrasound and coda wave interferometry)".Bauingenieur 2017,11, pp. 474–481.
  • Niederleithinger,Ernst, XinWang, MartinHerbrand, undMatthias Müller. "ProcessingUltrasonic Data byCoda Wave Interferometry to Monitor Load Tests ofConcrete Beams".Sensors 18, Nr. 6 (19.Juni 2018): 1971.
  • Niederleithinger,Ernst, JuliaWolf, Frank Mielentz, Herbert Wiggenhauser and Stephan Pirskawetz.Embedded Ultrasonic Transducersfor Active and Passive Concrete Monitoring. Sensors 15, Nr. 5 (27.April 2015): 9756–72.
  • Fröjd,Patrik, und Peter Ulriksen. "Frequency Selectionfor Coda Wave Interferometry inConcrete Structures".Ultrasonics 80 (September 2017): 1–8.
  • Larose, E., &Hall,S.(2009).Monitoringstressrelatedvelocityvariationinconcrete witha 2× 10− 5relative resolution using diffuse ultrasound.The Journal of the Acoustical Society of America, 125(4), 1853-1856.
  • Grêt, A., Snieder, R., & Scales, J. (2006). Timelapsemonitoring of rock propertieswith coda waveinterferometry.Journal of Geophysical Research: Solid Earth, 111(B3).
  • Niederleithinger,E., und C. Wunderlich. "Influence ofsmall temperature variations on theultrasonic velocity inconcrete".In ProceedingsofQNDE 2012, 390–97. Denver, 2012.
  • Stähler, S. C., Sens-Schönfelder, C., & Niederleithinger, E. (2011). Monitoring stress changes in a concrete bridge withcoda waveinterferometry.The Journal of the Acoustical Society of America, 129(4), 1945-1952.
  • SensSchönfelder, C., & Wegler, U. (2006). Passive image interferometry and seasonalvariations ofseismic velocities at Merapi Volcano, Indonesia. Geophysical research letters, 33(21).
  • Herbrand,M.; Classen, M.; Adam, V. Querkraftversuche an Durchlaufträgern aus SpannbetonmitRechteck-und I-Querschnitt. Bauingenieur92 (2017), Heft 11.
  • Larose, E., Obermann, A., Digulescu, A., Planes, T., Chaix, J. F., Mazerolle, F., & Moreau, G. (2015). Locating and characterizing a crack in concrete with diffuse ultrasound: A four-point bending test. The Journalof the Acoustical Society of America, 138(1), 232-241.
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