Modified SIBIE procedure for ungrouted tendon ducts applied to scanning impact-echo
Articles > Article ยท 2010
Authors: Ninel ALVER, Herbert WIGGENHAUSER
Construction and Building Materials, Journal Indexed in SCI Expanded, International, WoS, 2010, vol 24, pp 2388-2392
DOI: 10.1016/j.conbuildmat.2010.05.012
Summary
The impact-echo method has been successfully applied to identify defects inside concrete. In addition, to detect ungrouted tendon ducts in a large concrete slab, a scanning impact-echo technique is developed. However, since resonant frequencies in the spectrum responsible for the travel paths via defects are only taken into account, the method could lead to erroneous results due to complicated spectra obtained in the tests. Consequently, Stack Imaging of spectral amplitudes Based on Impact-Echo (SIBIE) procedure has been developed to improve the data interpretation.