Carbonation assessment in concrete by nonlinear ultrasound

F. Bouchaala, C. Payan, V. Garnier, J. P. Balayssac

Research output: Contribution to journalArticlepeer-review

62 Scopus citations

Abstract

The carbonation process results in a change in the elastic properties of concrete, resulting in a variation of standard acoustic indicators such as wave speed. However, this evolution is too low to ensure an efficient carbonation assessment. The present communication focuses on the feasibility of carbonation assessment in concrete by applying Nonlinear Resonant Ultrasound Spectroscopy (NRUS). The results show that the nonlinear parameter is significantly affected by the presence of carbonation, which is interpreted with respect to the evolution of concrete microstructure in the presence of this pathology.

Original languageBritish English
Pages (from-to)557-559
Number of pages3
JournalCement and Concrete Research
Volume41
Issue number5
DOIs
StatePublished - May 2011

Keywords

  • Carbonation (C)
  • Characterization (B)
  • Nonlinear acoustics

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