Characterization of hydrofracture grouts for radionuclide migration
Detailed characterization of hydrofracture grouts was performed by optical microscopy, scanning electron microscopy, x-ray diffraction, and ..beta..-..gamma.. autoradiography. Laboratory-produced samples containing simulated wastes as well as actual radioactive samples of hydrofracture grout sheets obtained by core drilling were examined in this work. X-ray diffraction results revealed that both laboratory-produced samples and a core-drilled sample consisted primarily of calcium carbonate phases. Both sample types contained very small amounts of strontium or cesium wastes, neither of which could be detected by microscopic techniques. The core-drilled sample contained radioactive /sup 90/Sr, /sup 137/Cs, and /sup 60/Co that could be detected by ..beta..-..gamma.. autoradiography. The autoradiograph revealed that these radionuclides were still present in the 20-year-old grout and that they had not migrated into the trapped shale fragments.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6324764
- Report Number(s):
- CONF-830451-4; ON: DE83011398
- Resource Relation:
- Conference: American Ceramic Society annual meeting, Chicago, IL, USA, 25 Apr 1983
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
54 ENVIRONMENTAL SCIENCES
GROUTING
PHASE STUDIES
RADIOACTIVE WASTE DISPOSAL
HYDRAULIC FRACTURING
SHALES
RADIONUCLIDE MIGRATION
AUTORADIOGRAPHY
CEMENTS
LIQUIDS
SCANNING ELECTRON MICROSCOPY
SLUDGES
UNDERGROUND DISPOSAL
X-RAY DIFFRACTION
BUILDING MATERIALS
COHERENT SCATTERING
COMMINUTION
DIFFRACTION
ELECTRON MICROSCOPY
ENVIRONMENTAL TRANSPORT
FLUIDS
FRACTURING
MANAGEMENT
MASS TRANSFER
MATERIALS
MICROSCOPY
ROCKS
SCATTERING
SEDIMENTARY ROCKS
WASTE DISPOSAL
WASTE MANAGEMENT
052002* - Nuclear Fuels- Waste Disposal & Storage
053000 - Nuclear Fuels- Environmental Aspects
510301 - Environment
Terrestrial- Radioactive Materials Monitoring & Transport- Soil- (-1987)