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Method for characterization of the rate of movement of an oxidation front in cementitious materials

United States Patent

March 1, 2016
View the Complete Patent at the US Patent & Trademark Office
Savannah River National Laboratory - Visit the Technology Transfer Website
Disclosed are methods for determining the redox condition of cementitious materials. The methods are leaching methods that utilize a redox active transition metal indicator that is present in the cementitious material and exhibits variable solubility depending upon the oxidation state of the indicator. When the leaching process is carried out under anaerobic conditions, the presence or absence of the indicator in the leachate can be utilized to determine the redox condition of and location of the oxidation front in the material that has been subjected to the leaching process.
Almond; Philip M. (Martinez, GA), Langton; Christine A. (Aiken, SC), Stefanko; David B. (North Augusta, SC)
Savannah River Nuclear Solutions, LLC (Aiken, SC)
13/ 973,567
August 22, 2013
STATEMENT AS TO RIGHTS TO INVENTIONS MADE UNDER FEDERALLY SPONSORED RESEARCH This invention was made with Government support under Contract No. DE-AC09-08SR22470 awarded by the United States Department of Energy. The Government has certain rights in the invention.