NDT.net - June 2001, Vol. 6 No. 6

A Portable Transient Elastic Wave System for In-situ Nondestructive Evaluation of Concrete

J.-H. Tong and T.-T. Wu
Institute of Applied Mechanics
National Taiwan University, Taipei, TAIWAN
E-mail: wutt@spring.iam.ntu.edu.tw

Abstract

Introduction

Principle of measurement

Fig 4: The surface responses recorded by S1 and S2. Fig 5: The influence of r1 on the Rayleigh wave velocity measurements.

Portable transient elastic wave system

Results and discussions

Conclusions

Acknowledgements

References

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  8. T.-T. Wu, J.-S. Fang, G.-Y. Liu and M.-K. Kuo "Determination of Elastic Constants of a Concrete Specimen Using Transient Elastic Waves," J. Acoust. Soc. Am., 98 (4), 2142-2148 (1995).
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  10. J.-H. Tong, T.-T. Wu and Lee, C.-K. (2000)"Application of a piezoelectric impact hammer to the in-situ nondestructive evaluation of concrete," submitted.

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