Email RIS file
Bookmark
Report an Issue

Diffusion of Iodine and Rhenium in Category 3 Waste Encasement Concrete and Soil Fill Material [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 2006.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
PDFN
Additional Creators
Pacific Northwest National Laboratory (U.S.), United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online

Availability

I Want It
I Want It

Finding items...

Restrictions on Access
Free-to-read Unrestricted online access
Summary
Assessing long-term performance of Category 3 waste cement grouts for radionuclide encasement requires knowledge of the radionuclide-cement interactions and mechanisms of retention (i.e. sorption or precipitation). This understanding will enable accurate prediction of radionuclide fate when the waste forms come in contact with groundwater. A set of diffusion experiments using carbonated and non-carbonated concrete-soil half cells was conducted under unsaturated conditions (4% and 7% by wt moisture content). Spiked concrete half-cell specimens were prepared with and without colloidal metallic iron addition and were carbonated using supercritical carbon dioxide. Spikes of I and Re were added to achieve measurable diffusion profile in the soil part of the half-cell. In addition, properties of concrete materials likely to influence radionuclide migration such as carbonation were evaluated in an effort to correlate these properties with the release of iodine and rhenium.
Report Numbers
E 1.99:pnnl-16268
pnnl-16268
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
12/15/2006.
"pnnl-16268"
"830403000"
Whyatt, Greg A.; Mattigod, Shas V.; Parker, Kent E.; Wood, Marcus I.; Wellman, Dawn M.; Powers, Laura.
Funding Information
AC05-76RL01830
View MARC record | catkey: 14409085