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Title: Radionuclide Retention in Concrete Wasteforms

Abstract

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); the mechanism of contaminant release; the significance of contaminant release pathways; how wasteform performance is affected by the full range of environmental conditions within the disposal facility; the process of wasteform aging under conditions that are representative of processes occurring in response to changing environmental conditions within the disposal facility; the effect of wasteform aging on chemical, physical, and radiological properties; and the associated impact on contaminant release. This knowledge will enable accurate prediction of radionuclide fate when the wasteforms come in contact with groundwater. The information present in the report provides data that (1) measures the effect of concrete wasteform properties likely to influence radionuclide migration; and (2) quantifies the rate of carbonation of concrete materials in a simulated vadose zone repository.

Authors:
; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1028565
Report Number(s):
PNNL-20760
830403000; TRN: US1106015
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; AGING; CEMENTS; CONCRETES; FORECASTING; GROUTING; PERFORMANCE; PRECIPITATION; RADIOISOTOPES; RADIONUCLIDE MIGRATION; RETENTION; SORPTION; WASTE FORMS; WASTES; Concrete, Carbonation

Citation Formats

Bovaird, Chase C., Jansik, Danielle P., Wellman, Dawn M., and Wood, Marcus I. Radionuclide Retention in Concrete Wasteforms. United States: N. p., 2011. Web. doi:10.2172/1028565.
Bovaird, Chase C., Jansik, Danielle P., Wellman, Dawn M., & Wood, Marcus I. Radionuclide Retention in Concrete Wasteforms. United States. doi:10.2172/1028565.
Bovaird, Chase C., Jansik, Danielle P., Wellman, Dawn M., and Wood, Marcus I. Fri . "Radionuclide Retention in Concrete Wasteforms". United States. doi:10.2172/1028565. https://www.osti.gov/servlets/purl/1028565.
@article{osti_1028565,
title = {Radionuclide Retention in Concrete Wasteforms},
author = {Bovaird, Chase C. and Jansik, Danielle P. and Wellman, Dawn M. and Wood, Marcus I.},
abstractNote = {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); the mechanism of contaminant release; the significance of contaminant release pathways; how wasteform performance is affected by the full range of environmental conditions within the disposal facility; the process of wasteform aging under conditions that are representative of processes occurring in response to changing environmental conditions within the disposal facility; the effect of wasteform aging on chemical, physical, and radiological properties; and the associated impact on contaminant release. This knowledge will enable accurate prediction of radionuclide fate when the wasteforms come in contact with groundwater. The information present in the report provides data that (1) measures the effect of concrete wasteform properties likely to influence radionuclide migration; and (2) quantifies the rate of carbonation of concrete materials in a simulated vadose zone repository.},
doi = {10.2172/1028565},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Sep 30 00:00:00 EDT 2011},
month = {Fri Sep 30 00:00:00 EDT 2011}
}

Technical Report:

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