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Title: Decontamination of Radionuclides from Concrete During and After Thermal Treatment

Abstract

This project will determine the effect of heating concrete on its engineering properties and the potential to aid in removal of common DOE radionuclide contaminants including 137Cs, 90Sr, 60Co, and U. In the chemical properties subtask, effects on direct volatilization of radionuclides during heating, as well as their subsequent extractability behavior, will be established over a range of temperatures up to the melting point of Portland cement. Although not an objective as this project was initially proposed, the serendipitous finding of fixation of radionuclides during heating of common concrete aggregates minerals (quartz, feldspar, and calcite) has led to a breakthrough technique for in situ immobilization of radionuclides and contaminants in soil by thermal treatment. The main objective of the mechanics and thermodynamics subtask of this investigation is to develop a powerful computational capability to evaluate the effects of various regimes of rapid heating of a contaminated concrete wall or slab.

Authors:
; ;
Publication Date:
Research Org.:
Oak Ridge National Laboratory, Oak Ridge, TN; Northwest University, Evanston, IL (US)
Sponsoring Org.:
USDOE Office of Environmental Management (EM) (US)
OSTI Identifier:
831202
Report Number(s):
EMSP-64896-2000
R&D Project: EMSP 68496; TRN: US200430%%278
DOE Contract Number:  
FG07-98ER45736
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 1 Jun 2000
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 54 ENVIRONMENTAL SCIENCES; CALCITE; CHEMICAL PROPERTIES; CONCRETES; DECONTAMINATION; EVAPORATION; HEATING; MELTING POINTS; PORTLAND CEMENT; QUARTZ; RADIOISOTOPES; REMOVAL; SOILS; THERMODYNAMICS

Citation Formats

Spalding, Brian P, Bazant, Zdenek P, and Murphy, Walter P. Decontamination of Radionuclides from Concrete During and After Thermal Treatment. United States: N. p., 2000. Web. doi:10.2172/831202.
Spalding, Brian P, Bazant, Zdenek P, & Murphy, Walter P. Decontamination of Radionuclides from Concrete During and After Thermal Treatment. United States. doi:10.2172/831202.
Spalding, Brian P, Bazant, Zdenek P, and Murphy, Walter P. Thu . "Decontamination of Radionuclides from Concrete During and After Thermal Treatment". United States. doi:10.2172/831202. https://www.osti.gov/servlets/purl/831202.
@article{osti_831202,
title = {Decontamination of Radionuclides from Concrete During and After Thermal Treatment},
author = {Spalding, Brian P and Bazant, Zdenek P and Murphy, Walter P},
abstractNote = {This project will determine the effect of heating concrete on its engineering properties and the potential to aid in removal of common DOE radionuclide contaminants including 137Cs, 90Sr, 60Co, and U. In the chemical properties subtask, effects on direct volatilization of radionuclides during heating, as well as their subsequent extractability behavior, will be established over a range of temperatures up to the melting point of Portland cement. Although not an objective as this project was initially proposed, the serendipitous finding of fixation of radionuclides during heating of common concrete aggregates minerals (quartz, feldspar, and calcite) has led to a breakthrough technique for in situ immobilization of radionuclides and contaminants in soil by thermal treatment. The main objective of the mechanics and thermodynamics subtask of this investigation is to develop a powerful computational capability to evaluate the effects of various regimes of rapid heating of a contaminated concrete wall or slab.},
doi = {10.2172/831202},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {6}
}

Technical Report:

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