Application of surface wave transmission measurements for crack depth determination in concrete

John S. Popovics, Won Joon Song, Masoud Ghandehari, Kolluru V. Subramaniam, Jan D. Achenbach, Surendra P. Shah

Research output: Contribution to journalArticle

Abstract

It has been established in previous papers that stress wave attenuation measurements performed on concrete are very sensitive to the presence of damage located along the wave path. In this paper, a modified form of this concept is introduced in a self-compensating measurement scheme: surface wave transmission is obtained, across a range of frequencies, between two sensing points on the surface of a concrete specimen. The obtained signal transmission values are independent of the type of wave transmitter and receiver used. An experimental test series on a range of concrete slabs containing notches and controlled cracks of varying depths is described. The cracks are generated by subjecting the slabs toexure using a closed-loop loading procedure. The actual depth of each generated crack is determined with the laser-based phase measurement interferometry technique. Self-compensating wave transmission measurements are performed across the discontinuities (notches, open cracks, and closed cracks) and are shown to be repeatable and sensitive to the presence of notches, and even tightly-closed cracks. A relationship between the wave transmission and the crack depth normalized with respect to propagating wavelength is noted. This relationship appears to be largely unaffected by the type of concrete and the nature of the discontinuity. The results demonstrate that self-compensating wave transmission measurements show excellent potential for sensitive detection and sizing of surface-breaking cracks in concrete structures.

Original languageEnglish (US)
Pages (from-to)127-135
Number of pages9
JournalACI Structural Journal
Volume97
Issue number2
StatePublished - 2000

Fingerprint

Wave transmission
Surface waves
Concretes
Cracks
Phase measurement
Concrete slabs
Interferometry
Concrete construction
Transmitters
Wavelength
Lasers

Keywords

  • Concretes
  • Cracking (fracturing)
  • Nondestructive tests

ASJC Scopus subject areas

  • Building and Construction
  • Civil and Structural Engineering
  • Materials Science(all)

Cite this

Popovics, J. S., Song, W. J., Ghandehari, M., Subramaniam, K. V., Achenbach, J. D., & Shah, S. P. (2000). Application of surface wave transmission measurements for crack depth determination in concrete. ACI Structural Journal, 97(2), 127-135.

Application of surface wave transmission measurements for crack depth determination in concrete. / Popovics, John S.; Song, Won Joon; Ghandehari, Masoud; Subramaniam, Kolluru V.; Achenbach, Jan D.; Shah, Surendra P.

In: ACI Structural Journal, Vol. 97, No. 2, 2000, p. 127-135.

Research output: Contribution to journalArticle

Popovics, JS, Song, WJ, Ghandehari, M, Subramaniam, KV, Achenbach, JD & Shah, SP 2000, 'Application of surface wave transmission measurements for crack depth determination in concrete' ACI Structural Journal, vol. 97, no. 2, pp. 127-135.
Popovics JS, Song WJ, Ghandehari M, Subramaniam KV, Achenbach JD, Shah SP. Application of surface wave transmission measurements for crack depth determination in concrete. ACI Structural Journal. 2000;97(2):127-135.
Popovics, John S. ; Song, Won Joon ; Ghandehari, Masoud ; Subramaniam, Kolluru V. ; Achenbach, Jan D. ; Shah, Surendra P. / Application of surface wave transmission measurements for crack depth determination in concrete. In: ACI Structural Journal. 2000 ; Vol. 97, No. 2. pp. 127-135.
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