A study of natural glass analogues as applied to alteration of nuclear waste glass
A two-part study was undertaken on the alteration of natural basalt and nuclear waste glasses. In the first part, the University of New Mexico characterized a wide variety of natural basaltic glasses with respect to reaction products, reaction kinetics, and geologic history. The important outcome of this study was a description of the process whereby natural glass alters to palagonite and authigenic materials, including clays and zeolites. In the second part, ANL performed laboratory tests to simulate the natural alteration process with a synthetic basaltic glass. For laboratory tests in which the glass samples were exposed to water vapor at high temperature (>90/sup 0/C), a close similarity was found in the alteration of natural and synthetic glasses. The same alteration process was found for a nuclear waste glass (SRL 165). It was concluded that both the natural alteration of basaltic glass and water-vapor laboratory tests can be used as an analogue to assess the performance of nuclear waste glass under potential repository conditions.
- Research Organization:
- Argonne National Lab., IL (USA); New Mexico Univ., Albuquerque (USA). Dept. of Geology; Nuclear Regulatory Commission, Washington, DC (USA). Office of Nuclear Regulatory Research
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 6451972
- Report Number(s):
- NUREG/CR-4842; ANL-86-46; ON: TI87006957
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
GLASS
GEOLOGIC HISTORY
LEACHING
STRUCTURAL CHEMICAL ANALYSIS
BENCH-SCALE EXPERIMENTS
CORRELATIONS
ELECTRON MICROPROBE ANALYSIS
EXPERIMENTAL DATA
HIGH TEMPERATURE
HYDROTHERMAL ALTERATION
MEDIUM TEMPERATURE
MINERALIZATION
REACTION KINETICS
SCANNING ELECTRON MICROSCOPY
WATER VAPOR
X-RAY DIFFRACTION
CHEMICAL ANALYSIS
COHERENT SCATTERING
DATA
DIFFRACTION
DISSOLUTION
ELECTRON MICROSCOPY
FLUIDS
GASES
INFORMATION
KINETICS
MICROANALYSIS
MICROSCOPY
NUMERICAL DATA
SCATTERING
SEPARATION PROCESSES
VAPORS
360604* - Materials- Corrosion
Erosion
& Degradation
360602 - Other Materials- Structure & Phase Studies
052002 - Nuclear Fuels- Waste Disposal & Storage