PNL Sandia HLW package interactions test: phase one
The first phase of a complex high-level waste (HLW) package interactions test in a salt environment has been completed. The test system consised of PNL 76-68 HLW glass (loaded with inactive fission products and /sup 238/U) surrounded by a stainless steel waste canister, a TiCode-12 overpack, a bentonite/sand backfill, excess brine leachant, and a bedded rock salt container, all held within a 19-liter autoclave. All components were physically compromised in order to force wasteform-barrier-salt interactions to occur during this 95-day, 250/sup 0/C overtest. Analyses of leachant, wasteform, and all barrier surfaces were performed. Test data included the synergistic effects between barriers and confirmed previous analyses of simpler systems. The glass wasteform exhibited some surface alteration but was not dissolved to any significant degree. The TiCode-12 overpack showed minimal uniform corrosion and no localized attack. Observed mineralogical alteration of the backfill was minimal.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA); Pacific Northwest Lab., Richland, WA (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5600829
- Report Number(s):
- SAND-81-1442C; CONF-811122-43; ON: DE82004764; TRN: 82-007016
- Resource Relation:
- Conference: Annual meeting of the Materials Research Society, Boston, MA, USA, 16 Nov 1981
- Country of Publication:
- United States
- Language:
- English
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12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
RADIOACTIVE WASTE DISPOSAL
BENCH-SCALE EXPERIMENTS
ENGINEERED SAFETY SYSTEMS
HIGH-LEVEL RADIOACTIVE WASTES
RISK ASSESSMENT
SALT DEPOSITS
WASTE-ROCK INTERACTIONS
AUTOCLAVES
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STAINLESS STEELS
URANIUM 238
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALLOYS
ALPHA DECAY RADIOISOTOPES
CHEMICAL REACTIONS
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DISSOLUTION
EVEN-EVEN NUCLEI
GEOLOGIC DEPOSITS
HEAVY NUCLEI
IRON ALLOYS
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NUCLEI
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WASTE MANAGEMENT
WASTES
YEARS LIVING RADIOISOTOPES
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