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Damage Level Evaluation and Characterisation by Acoustic Emission and Acousto-Ultrasonics in Concrete Under Compressive Loads

Apostolos Tsimogiannis, Athanassios Anastassopoulos
ENVIROCOUSTICS S.A.
El. Venizelou 7 & Delfon, 11452 Athens, Greece
E-mail: envac@otenet.gr
Barbara Georgali
HELLENIC CEMENT RESEARCH CENTER LTD.
15 K. Pateli Str., 14123 Athens, Greece
Contact

ABSTRACT

1 INTRODUCTION

2 MATERIALS & INSTRUMENTATION

3 MICROSCOPY RESULTS

4 ACOUSTIC EMISSION

5 ACOUSTO-ULTRASONICS

6 CONCLUSIONS

7 Reference

  1. K. Matsuyama, T. Fujiwara, A. Ishibashi and M. Ohtsu : Field Application of Acoustic Emission for the Diagnosis of Structural Deterioration of Concrete, Journal of Acoustic Emission, vol.11, No.4, Oct-Dec 1993, pp.65-73.
  2. ASNT, Non-Destructive Testing Handbook, vol.7: Ultrasonic Testing of Bridges and Buildings, pp 680-684.
  3. S. Yuyama, T. Okamoto, M. Shigeishi, and M. Ohtsu : Quantitative Evaluation and Visualization of Cracking Process in Reinforced Concrete by a Moment Tensor Analysis of Acoustic Emission, Materials Evaluation, Vol.53, No.6, 1995, pp. 751-756.
  4. S. Yuyama, T. Okamoto, T. Kamada, M. Ohtsu, T. Kishi : A Proposed Standard for Evaluating Structural Integrity of Reinforced Concrete Beams by Acoustic Emission, Progress in Acoustic emission VIII, The Japanese Society of NDI, 1996, pp. 295-304.
  5. M. Uchida, T. Okamoto, T. Shibata, D. Mori, and M. Ohtsu : Structural Integrity Evaluation on Reinforced Concrete Members.
  6. A. Tsimogiannis, A. Anastassopoulos : Experimental Set-up Design for Acousto-Ultrasonics on Concrete Specimens, MHKKYNES Project, Athens, 1999
  7. Envirocoustics ABEE, Noesis Reference Manual, rev.0, 1999.
  8. ASTM C 457-89, "Microscopical determination of air void content and parameters of air void system in hardened concrete"
  9. A. A. Anastassopoulos, T. P. Philippidis, " Clustering Methodologies for the evaluation of AE from Composites ", J. of Acoustic Emission, Vol. 13, Noa 1/2, 1995, pp 11-21.
  10. A. A. Anastassopoulos, V. N. Nikolaidis and T. P. Philippidis, "A Comparative study of Pattern Recognition Algorithms for Classification of Ultrasonic Signals", Neural Computing & Applications, 1999, Vol. 8, pp 53-61.

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