Effect of Concrete Compositions in Energy Transmission of Surface Waves for Nondestructive Crack Depth Evaluation
Publication: Journal of Materials in Civil Engineering
Volume 22, Issue 7
Abstract
The amount and magnitude of absorption and scattering of stress waves in concrete, mainly due to internal friction and aggregate inclusions, may be different when concrete mix proportions vary. In this study, we investigate the effect of concrete composition on the measurements of self-calibrated surface wave transmission functions (TRFs) and spectral energy transmission ratios (SETRs) which are used for crack depth estimation in concrete slabs. A series of experiments is carried out on a range of concrete specimens having more realistic crack (not a notch). It is found that the self-calibrated TRFs are very sensitive to both the concrete composition and the crack depth. However, the SETR is less sensitive to the concrete composition and more sensitive to the changes of crack depths. In conclusion the spectral energy transmission method can be effectively used for crack depth estimation in concrete regardless of their material compositions.
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Acknowledgments
This work was supported by a new faculty research program of Pukyong National University, Korea (Grant No. UNSPECIFIEDPKS-2008-017). The writers appreciate Professor Jinying Zhu of the University of Texas at Austin for her help provided in this study.
References
Abo-Qudais, S. A. (2005). “Effect of concrete mixing parameters on propagation of ultrasonic waves.” Constr. Build. Mater., 19, 257–263.
Jacobs, L. J., and Owino, J. O. (2000). “Effect of aggregate size on attenuation of Rayleigh surface waves in cement-based materials.” J. Eng. Mech., 126(11), 1124–1130.
Owino, J. O., and Jacobs, L. J. (1999). “Attenuation measurements in cement-based materials using laser ultrasonics.” J. Eng. Mech., 125(6), 637–647.
Popovics, J. S., Song, W., Ghandehari, M., Subramaniam, K. V., Achenbach, J. D., and Shah, S. P. (2000). “Application of surface wave transmission measurements for crack depth determination in concrete.” ACI Mater. J., 97(1), 127–135.
Shin, S. W., Zhu, J., Min, J., and Popovics, J. S. (2008). “Crack depth estimation in concrete using energy transmission of surface waves.” ACI Mater. J., 105(5), 510–516.
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Published In
Journal of Materials in Civil Engineering
Volume 22 • Issue 7 • July 2010
Pages: 752 - 757
Copyright
© 2010 ASCE.
History
Received: Nov 20, 2008
Accepted: Nov 9, 2009
Published online: Nov 11, 2009
Published in print: Jul 2010
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