Publication: Publication Date: 1 October 2010Testing Method: ,
Ultrasonic Guided Wave Testing of Concrete Anchor Penetrations
This paper discusses guided wave testing (GWT) as it applies to the screening of short segments of piping which are encased within concrete blocks. Actual field data is presented and compared to a number of cases where the concrete anchor has been removed and the indications noted from the GWT data confirmed. The paper goes further to discuss lessons learned with respect to the need for adequate performance procedures and certification of technicians performing the scans, and also highlights the experience gained on ambient temperature effects on the data quality.
References
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Waves in Pipes Using Dry-Coupled Piezoelectric Transducers,”
Journal of Nondestructive Evaluation, Vol. 15,
1996, pp. 11–20.
Sabet-Sharghi, R., K. Samani, P. Ramos and D. Keck, “The
Application of Guided Waves for the Detection of Corrosion
Under Insulation,” Materials Evaluation, Vol. 67, No. 9,
September 2009, pp. 1043–1047.
Rose, J., J. Mu, J. Hua, R. Royer and S. Kenefick, “Guided
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Leewis, K., D. Ersoy and G. Matocha, “The Equivalency of
Guided Wave Ultrasonic Technology (GWUT) and Pressure
Testing for High Pressure Steel Pipelines,” Proceedings of
IPC2008 7th International Pipeline Conference, September
2008, Calgary.
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