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Sandia solidification process: consolidation and characterization. Part I. Consolidation studies

Description: The consolidation behavior of a complex polycrystalline ceramic nuclear waste form composed of titanates, zeolite, and metallic silicon was studied. Initial solidification takes place by an ion exchange process. The resulting powder exhibits a large surface area, approximately 350 m/sup 2//g, and several decomposition, crystallization and phase change reactions from room temperature to 1100/sup 0/C. In spite of the large surface area, consolidation by cold pressing and atmospheric sintering to … more
Date: May 1, 1978
Creator: Johnstone, J.K.
Partner: UNT Libraries Government Documents Department
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In-situ tuff water migration/heater experiment: experimental plan

Description: Tuffs on the Nevada Test Site (NTS) are currently under investigation as a potential isolation medium for heat-producing nuclear wastes. The National Academy of Sciences has concurred in our identification of the potentially large water content ({le}40 vol %) of tuffs as one of the important issues affecting their suitability for a repository. This Experimental Plan describes an in-situ experiment intended as an initial assessment of water generation/migration in response to a thermal input. Th… more
Date: August 1, 1980
Creator: Johnstone, J.K.
Partner: UNT Libraries Government Documents Department
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Evaluation of tuff as a medium for a nuclear waste repository: interim status report on the properties of tuff

Description: This report is the second in a series of summary briefings to the National Academy of Science`s (NAS) Committee on Radioactive Waste Management dealing with feasibility of disposal of heat-producing radioactive waste in silicic tuff. The interim status of studies of tuff properties determined on samples obtained from Yucca Mountain and Rainier Mesa (G-tunnel) located on the Nevada Test Site (NTS) are discussed. In particular, progress is described on resolving issues identified during the first… more
Date: July 1, 1980
Creator: Johnstone, J.K. & Wolfsberg, K. (eds.)
Partner: UNT Libraries Government Documents Department
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Nuclide-migration field experiments

Description: When considering groundwater flow and radionuclide retention in the complex flow systems that can occur in geologic formations, one has a serious problem in determining if laboratory studies are being performed under conditions appropriate to natural systems. This document is the project plan for a program designed to begin to address these problems. The project is being carried out jointly by the Los Alamos National Laboratory, Sandia National Laboratories, and Argonne National Laboratory. The… more
Date: March 1, 1981
Creator: Erdal, B. R.; Wolfsberg, K.; Johnstone, J. K.; Erickson, K. L.; Friedman, A. M.; Fried, S. et al.
Partner: UNT Libraries Government Documents Department
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