Pumpable backfill material of high strength

Details Pumpable backfill material of high strength Pumpable backfill material of high strength

1986-07-02

1988-05-24

Corbin, David H.

Hydraulic and earth engineering

Earth treatment or control

Chemical

106 90, 299 11, 405267, E02D 300, E02D 1500

Patent

active

047462493

ABSTRACT:
An aqueous slurry of backfill material e.g. slimes, includes a settable material and an activator therefor, e.g. pulverized fuel ash and lime, and a lubricant e.g. clay and a plasticizer, e.g. a lignosulphonate so that the slurry can be pumped over long distances but will then set to develop high early strength.

REFERENCES:
patent: 3508407 (1970-04-01), Booth
patent: 3642509 (1972-02-01), Fujimasu
patent: 3799787 (1974-03-01), Davis
patent: 3920795 (1975-11-01), Selmeczi et al.
patent: 4019327 (1977-04-01), Kempster
patent: 4101333 (1978-07-01), Wayment
patent: 4257814 (1981-03-01), Kellett et al.

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