Backfilling in mines

Hydraulic and earth engineering – Earth treatment or control – Chemical

Patent

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Details

405258, 405266, E02D 1500

Patent

active

051413655

ABSTRACT:
A void in a mine is backfilled by a backfill slurry comprising water, an inert filler, e.g. mine tailings, and a binder, e.g. cement, lime or slag, to which a gelling agent, e.g. sodium silicate, is added just before placement.

REFERENCES:
patent: 3274784 (1966-09-01), Shock et al.
patent: 3440824 (1969-04-01), Doolin
patent: 3459003 (1969-08-01), O'Neal
patent: 3582375 (1971-06-01), Tragesser
patent: 3583165 (1971-06-01), West
patent: 3672173 (1972-06-01), Paramore et al.
patent: 4019327 (1977-04-01), Kempster

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