Microcrack identification in cement-based materials using nonlinear acoustic waves

X. J. Chen, J. Y. Kim, J. Qu, K. E. Kurtis, S. C. Wu, L. J. Jacobs

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

This paper presents results from tests that use nonlinear acoustic waves to distinguish microcracks in cement-based materials. Portland cement mortar samples prepared with alkali-reactive aggregate were exposed to an aggressive environment to induce cracking were compared to control samples, of the same composition, but which were not exposed to aggressive conditions. Two nonlinear ultrasonic methods were used to characterize the samples, with the aim of identifying the time and extent of microcracking; these techniques were a nonlinear acoustical modulation (NAM) method and a harmonic amplitude relation (HAR) method. These nonlinear acoustic results show that both methods can distinguish damaged samples from undamaged ones, demonstrating the potential of nonlinear acoustic waves to provide a quantitative evaluation of the deterioration of cement-based materials.

Original languageEnglish
Title of host publicationReview of Progress in Quantitative Nondestructive Evaluation
Subtitle of host publicationVolume 26
Pages1361-1367
Number of pages7
DOIs
StatePublished - 2007
EventREVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION - Portland, OR, United States
Duration: 30 Jul 20064 Aug 2006

Publication series

NameAIP Conference Proceedings
Volume894
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceREVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION
Country/TerritoryUnited States
CityPortland, OR
Period30/07/064/08/06

Keywords

  • ASR damage
  • Microcrack detection
  • Nonlinear ultrasonic waves

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