Radionuclide Retention in Concrete Waste Forms

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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 waste form performance is affected by the full range of environmental conditions within the disposal facility; the process of waste form aging under conditions that are representative of processes occurring in response to changing environmental conditions within the disposal facility; the effect of waste form aging on chemical, physical, and radiological properties; and the associated impact on contaminant release. This knowledge will ... continued below

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Mattigod, Shas V.; Bovaird, Chase C.; Wellman, Dawn M. & Wood, Marcus I. September 30, 2010.

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Description

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 waste form performance is affected by the full range of environmental conditions within the disposal facility; the process of waste form aging under conditions that are representative of processes occurring in response to changing environmental conditions within the disposal facility; the effect of waste form 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 waste forms come in contact with groundwater. The information presented in the report provides data that 1) quantify radionuclide retention within concrete waste form materials similar to those used to encapsulate waste in the Low-Level Waste Burial Grounds (LLBG); 2) measure the effect of concrete waste form properties likely to influence radionuclide migration; and 3) quantify the stability of uranium-bearing solid phases of limited solubility in concrete.

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  • Report No.: PNNL-19823
  • Grant Number: AC05-76RL01830
  • DOI: 10.2172/1001511 | External Link
  • Office of Scientific & Technical Information Report Number: 1001511
  • Archival Resource Key: ark:/67531/metadc835186

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Creation Date

  • September 30, 2010

Added to The UNT Digital Library

  • May 19, 2016, 3:16 p.m.

Description Last Updated

  • Dec. 1, 2016, 1:06 p.m.

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Mattigod, Shas V.; Bovaird, Chase C.; Wellman, Dawn M. & Wood, Marcus I. Radionuclide Retention in Concrete Waste Forms, report, September 30, 2010; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc835186/: accessed July 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.