Physical Properties of Saltstone: A Savannah River Plant Waste Form

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A cement-based waste form, ''saltstone'', has been designed for disposal of Savannah River Plant low-level radioactive salt waste. Laboratory and field tests indicate that this stabilization process greatly reduces the mobility of all of the waste constituents in the surface and near-surface environment. Bulk properties of this material have been tailored with respect to salt leach rate, permeability, and compressive strength. Microstructure and mineralogy were characterized by SEM and X-ray diffraction analyses. Compressive strength was found to increase as the water to cement ratio decreased. Porosity and mean pore size increased with increasing water to cement ratios. Bulk diffusivities of ... continued below

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Langston, C.A. November 26, 1984.

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Description

A cement-based waste form, ''saltstone'', has been designed for disposal of Savannah River Plant low-level radioactive salt waste. Laboratory and field tests indicate that this stabilization process greatly reduces the mobility of all of the waste constituents in the surface and near-surface environment. Bulk properties of this material have been tailored with respect to salt leach rate, permeability, and compressive strength. Microstructure and mineralogy were characterized by SEM and X-ray diffraction analyses. Compressive strength was found to increase as the water to cement ratio decreased. Porosity and mean pore size increased with increasing water to cement ratios. Bulk diffusivities of the various ions dissolved in the pore solutions were also found to increase as water to cement ratios increased. This paper discusses the test results.

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  • 1984 Fall Materials Research Society Meeting, Boston, MA (US), 11/26/1984--11/30/1984

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  • Report No.: DP-MS-84-112
  • Grant Number: AC09-76SR00001
  • Office of Scientific & Technical Information Report Number: 781493
  • Archival Resource Key: ark:/67531/metadc723068

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Office of Scientific & Technical Information Technical Reports

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  • November 26, 1984

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  • Sept. 29, 2015, 5:31 a.m.

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  • May 5, 2016, 2:23 p.m.

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Langston, C.A. Physical Properties of Saltstone: A Savannah River Plant Waste Form, article, November 26, 1984; South Carolina. (digital.library.unt.edu/ark:/67531/metadc723068/: accessed October 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.