Non-destructive evaluation for corrosion monitoring in concrete: A review and capability of acoustic emission technique

Ahmad Zaki, Hwa Kian Chai*, Dimitrios G. Aggelis, Ninel Alver

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

Abstract / Description of output

Corrosion of reinforced concrete (RC) structures has been one of the major causes of structural failure. Early detection of the corrosion process could help limit the location and the extent of necessary repairs or replacement, as well as reduce the cost associated with rehabilitation work. Non-destructive testing (NDT) methods have been found to be useful for in-situ evaluation of steel corrosion in RC, where the effect of steel corrosion and the integrity of the concrete structure can be assessed effectively. A complementary study of NDT methods for the investigation of corrosion is presented here. In this paper, acoustic emission (AE) effectively detects the corrosion of concrete structures at an early stage. The capability of the AE technique to detect corrosion occurring in real-time makes it a strong candidate for serving as an efficient NDT method, giving it an advantage over other NDT methods.

Original languageEnglish
Pages (from-to)19069-19101
Number of pages33
JournalSensors (Switzerland)
Volume15
Issue number8
DOIs
Publication statusPublished - 5 Aug 2015

Keywords / Materials (for Non-textual outputs)

  • Acoustic emission
  • Corrosion
  • Non-destructive testing
  • Reinforced concrete

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