Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1977-06-14
1979-01-16
Woodberry, Edward M.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
47 9, 47DIG10, 204147, 204196, 260DIG14, 405264, C08L 302
Patent
active
041348621
ABSTRACT:
Wet soil containing up to about 40% by wet weight of water is stabilized into a relatively dry, compactable soil mass for use as backfill in excavations by admixing lime and an alkali metal salt of a starch-polyacrylonitrile or starch-polymethacrylonitrile graft copolymer with the soil, allowing the resulting admixture to stand for a short period of time to produce a relatively dry, compactable soil mass, and thereafter using the soil mass as backfill. The aforementioned graft copolymer can also be used as backfill around electrically conductive, grounding members by combining the graft copolymer with a binder or relatively water impervious material, such as a bentonite clay, and interposing the clay/graft coploymer mixture between the grounding member and the surrounding soil.
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Eden Donald A.
Griffin William H.
Construction Aids Technology, Inc.
Woodberry Edward M.
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