Bell Canyon Test (BCT) cement grout development report
Development of the cement grout for the Bell Canyon Test was accomplished at the US Army Engineer Waterways Experiment Station (WES), Vicksburg, Mississippi. Initial development work centered on a saltwater grout with Class H cement, fly ash, and an expansive additive. Testing of the saltwater grout showed suitable properties except for the interface between anhydrite rock and grout in small core samples. Higher than expected permeability occurred at the interface because of space between the grout and the anhydrite; the space was produced as a result of allowing the specimens to dry. A change to freshwater grout and proper care to prevent the specimens from drying alleviated this condition. The BCT-1FF freshwater grout mixture was used in both the plug ONE and ONEX field grouting operations. Testing of the development grout mixtures was also done at Dowell, Pennsylvania State University, and Oak Ridge National Laboratory. Results of the testing and evaluation by the four laboratories are included in the report. Field batching, mixing, and placement of the grout at the plug locations for both plug ONE and ONEX were satisfactory with adequate quality control. The freshwater grout mixture maintained adequate flow characteristics for pumpability for 3 1/2 h during each of the two field operations. Physical property and expansivity data for the field samples through 90 days' age are in general agreement with laboratory development data. A large number of samples were obtained for inclusion in the long-term durability studies and the geochemical programs. The high-density, low water-cement ratio expansive grout (BCT-1FF) is considered to be an excellent candidate for plugging boreholes at most locations (except through halite sections).
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Army Engineer Waterways Experiment Station, Vicksburg, MS (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6702454
- Report Number(s):
- SAND-80-1928; TRN: 81-002902
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BOREHOLES
PLUGGING
CEMENTS
DENSITY
PERMEABILITY
POROSITY
GEOLOGIC STRUCTURES
GROUTING
RADIOACTIVE WASTE DISPOSAL
UNDERGROUND DISPOSAL
COMPARATIVE EVALUATIONS
FIELD TESTS
MECHANICAL PROPERTIES
BUILDING MATERIALS
CAVITIES
MANAGEMENT
MATERIALS
PHYSICAL PROPERTIES
TESTING
WASTE DISPOSAL
WASTE MANAGEMENT
052002* - Nuclear Fuels- Waste Disposal & Storage