Detection of chemical damage in concrete using ultrasound.

  • Ould Naffa S
  • Goueygou M
  • Piwakowski B
 et al. 
  • 4


    Mendeley users who have this article in their library.
  • N/A


    Citations of this article.


This research deals with a non-destructive method for characterizing the degraded cover of concrete structures using high-frequency ultrasound (0.5-1 MHz). Although such a frequency range is unusual in civil engineering, it is well suited to the kind of defect to be detected, as it corresponds to a thin near-to-surface layer with increased porosity and density of microcracks. I n order to assess the feasibility of detecting concrete cover degradation, velocity and attenuation measurements were made on both halves of a concrete slab. One half was immersed into an acid solution for 15-45 days, while the other half remained sound. These measurements were made for longitudinal, transverse and surface waves. The results obtained show a 23% decrease of ultrasonic pulse velocity and a 1000% increase of attenuation in the degraded material relative to the sound material. It is thus possible to detect and characterize concrete cover degradation using high-frequency ultrasound. Although attenuation measurements in heterogeneous media are difficult, their sensitivity to degradation is very high.

Author-supplied keywords

  • attenuation measurement
  • concrete
  • degradation
  • high-frequency ultrasound
  • ultrasonic pulse velocity

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • S Ould Naffa

  • Marc Goueygou

  • Bogdan Piwakowski

  • F Buyle-Bodin

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free