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Title: Method for characterization of the redox condition of cementitious materials

Patent ·
OSTI ID:1233583
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Disclosed are methods for determining the redox condition of cementitious materials. The methods are leaching methods that utilize an in situ redox indicator that is present in the cementitious materials as formed. The in situ redox indicator leaches from cementitious material and, when the leaching process is carried out under anaerobic conditions can be utilized to determine the redox condition of the material. The in situ redox indicator can exhibit distinct characteristics in the leachate depending upon the redox condition of the indicator.

Research Organization:
Savannah River Site (SRS), Aiken, SC (United States). Savannah River Technology Center (SRTC)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC09-08SR22470
Assignee:
Savannah River Nuclear Solutions, LLC
Patent Number(s):
9,217,738
Application Number:
13/973,485
OSTI ID:
1233583
Resource Relation:
Patent File Date: 2013 Aug 22
Country of Publication:
United States
Language:
English

References (9)

Effect of Redox Potential on Leaching from Stabilized/Solidified Waste Materials journal January 1992
Leaching of Saltstone journal January 1984
Slag-Based Saltstone Formulations journal January 1987
Method Evaluation And Field Sample Measurements For The Rate Of Movement Of The Oxidation Front In Saltstone report August 2012
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 journal January 1998
Landfill Management, Leachate Generation, and Leach Testing of Solid Wastes in Australia and Overseas journal March 2005
Effect Of Oxidation On Chromium Leaching And Redox Capacity Of Slag-Containing Waste Forms report March 2013
In situ anaerobic bioremediation of earth and sold waste contaminants using organic/water emulsions patent September 2004

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
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