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

Vladimir S. Ban; Boris L. Volodin; Sergei Dolgi

doi:10.1117/12.880947

19 April 2011 Determination of chloride ion concentration in concrete by means of near infra-red spectroscopy

Vladimir S. Ban, Boris L. Volodin, Sergei Dolgi

Proceedings Volume 7983, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011; 798324 (2011) https://doi.org/10.1117/12.880947
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2011, San Diego, California, United States

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.

Citation Download 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 (19 April 2011); https://doi.org/10.1117/12.880947

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