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Proceedings Article

Determination of chloride ion concentration in concrete by means of near infra-red spectroscopy

[+] Author Affiliations
Vladimir S. Ban, Boris L. Volodin, Sergei Dolgi

PD-LD, Inc. (USA)

Proc. SPIE 7983, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011, 798324 (April 19, 2011); doi:10.1117/12.880947
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From Conference Volume 7983

  • Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011
  • San Diego, California, USA | March 06, 2011

abstract

Concentration of chloride ions was determined with a classical chemical titration method in three types of samples: a cracked concrete core and an undamaged concrete core, both taken from a bridge in Iowa, and also from concrete test samples prepared at Rutgers University. Chloride concentration profiles were obtained. The same samples were the subjected to the near infrared spectrometric determinations of chloride content by two manufacturers of spectrometric instruments. Very good correlation between the chemical and spectrometric measurements was obtained [ R2> 0.96], thus opening the possibility of rapid on-site chloride concentration determination in concrete structures.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Vladimir S. Ban ; Boris L. Volodin and Sergei Dolgi
"Determination of chloride ion concentration in concrete by means of near infra-red spectroscopy", Proc. SPIE 7983, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011, 798324 (April 19, 2011); doi:10.1117/12.880947; http://dx.doi.org/10.1117/12.880947


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