Acoustic emission characterization of the onset of corrosion in reinforced concrete

M. Di Benedetti, E. De Cais, Z. Karim, G. Loreto, F. Presuel, A. Nanni

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The development of techniques capable of evaluating deterioration of reinforced concrete (RC) is instrumental to the advancement of the structural health monitoring (SHM) and service life estimate for constructed facilities. One of the main causes leading to degradation of RC is the corrosion of the steel reinforcement. This process can be modeled phenomenologically, while laboratory tests aimed at studying durability responses are typically accelerated in order to provide useful results within a realistic period of time. Among nondestructive methods, acoustic emission (AE) is emerging as a tool to detect the onset and progression of deterioration mechanisms. In this paper, the development of accelerated corrosion and continuous AE monitoring test set-up for RC specimens are presented. Relevant information are provided with regard to the characteristics of the corrosion circuit, continuous measurement and acquisition of corrosion potential, selection of AE sensors and AE parameter setting. Results from small-scale pre-notched RC specimens aim to isolate the frequency spectrum where the corrosion first takes place. Waveform analysis critical in the definition of a prognosis model will extend the AE dataset for the onset of corrosion.

Original languageEnglish (US)
Title of host publicationSensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012
DOIs
StatePublished - May 22 2012
EventSensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012 - San Diego, CA, United States
Duration: Mar 12 2012Mar 15 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8345
ISSN (Print)0277-786X

Other

OtherSensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012
CountryUnited States
CitySan Diego, CA
Period3/12/123/15/12

Keywords

  • Accelerated test
  • Acoustic emission
  • Corrosion
  • Reinforced concrete
  • Service life
  • Steel reinforcement

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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  • Cite this

    Di Benedetti, M., De Cais, E., Karim, Z., Loreto, G., Presuel, F., & Nanni, A. (2012). Acoustic emission characterization of the onset of corrosion in reinforced concrete. In Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012 [83453Y] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8345). https://doi.org/10.1117/12.915197