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

Abstract

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.

Inventors:
; ;
Issue Date:
Research Org.:
Savannah River Site (SRS), Aiken, SC (United States). Savannah River Technology Center (SRTC)
Sponsoring Org.:
USDOE
OSTI Identifier:
1240733
Patent Number(s):
9274093
Application Number:
13/973,567
Assignee:
Savannah River Nuclear Solutions, LLC (Aiken, SC)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
AC09-08SR22470
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Aug 22
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Almond, Philip M., Langton, Christine A., and Stefanko, David B. Method for characterization of the rate of movement of an oxidation front in cementitious materials. United States: N. p., 2016. Web.
Almond, Philip M., Langton, Christine A., & Stefanko, David B. Method for characterization of the rate of movement of an oxidation front in cementitious materials. United States.
Almond, Philip M., Langton, Christine A., and Stefanko, David B. Tue . "Method for characterization of the rate of movement of an oxidation front in cementitious materials". United States. https://www.osti.gov/servlets/purl/1240733.
@article{osti_1240733,
title = {Method for characterization of the rate of movement of an oxidation front in cementitious materials},
author = {Almond, Philip M. and Langton, Christine A. and Stefanko, David B.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {3}
}

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Works referenced in this record:

The usefulness of UV–visible and fluorescence spectroscopies to study the chemical nature of humic substances from soils and composts
journal, December 2006


Characterization of Predominant Reductants in an Anaerobic Leachate-Contaminated Aquifer by Nitroaromatic Probe Compounds
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Landfill Management, Leachate Generation, and Leach Testing of Solid Wastes in Australia and Overseas
journal, March 2005


Leaching of Saltstone
journal, January 1984


Slag-Based Saltstone Formulations
journal, January 1987


Effect of Redox Potential on Leaching from Stabilized/Solidified Waste Materials
journal, January 1992