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Title: Preliminary geochemical and physical testing of materials for plugging of man-made accesses to a repository in basalt

Technical Report ·
DOI:https://doi.org/10.2172/5076024· OSTI ID:5076024

The available data on environmental conditions (both natural and man-made) at the Hanford Site are sufficient for preconceptual plug system design. Results of the geochemical testing program indicate that preferred candidate plug materials are chemically nonreactive during laboratory tests that simulated some of the expected environmental conditions. Agitated, crushed-basalt samples and mixtures containing basalt were found to be self-cementing under the hydrothermal conditions. Materials considered most suitable for consideration in future test programs and preconceptual plug design are mixtures of natural materials (basalt, clay, glaciofluvial sand, gravel, and zeolite) and processed natural materials (portland cement Type V and grouts plus additives).

Research Organization:
Woodward-Clyde Consultants, San Francisco, CA (USA)
DOE Contract Number:
AC06-77RL01030
OSTI ID:
5076024
Report Number(s):
RHO-BWI-C-66; TRN: 80-017733
Country of Publication:
United States
Language:
English