Mining

Details Mining Mining

1975-02-07

1977-04-26

Taylor, Dennis L.

61 45R, E02D 1500

Patent

active

040193276

ABSTRACT:
In a mine, pit dirt, after crushing if necessary, is mixed with bentonite and water to produce a sludge which is non-settling. The sludge is pumped through a pipe line to a point of utilization where it is fed into shuttering together with a setting agent to form a low quality concrete; this is used, for example, as a roof support in worked-out areas of the mine. The setting agent is preferably a mixture of cement and a water polyethylene oxide gel giving vary rapid setting.

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patent: 3440824 (1969-04-01), Doolin
patent: 3459003 (1969-08-01), O'Neal
patent: 3508407 (1970-04-01), Booth
patent: 3582375 (1971-06-01), Tragesser
patent: 3751926 (1973-08-01), Muller et al.

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