HARDENING STOWING MIXTURE Russian patent published in 2012 - IPC E21F15/00 C04B28/08 

FIELD: mining.

SUBSTANCE: composition of stowing mixture, which contains ground granulated blast-furnace slag, inert filler and water, contains the above aged acid slag, and as inert filler there used is washery refuse of wet magnetic separation of ferruginous quartzites, and in addition, the aged ground dolomite powder and superplasticising agent SP-1, at the following component, wt %: the above slag - 11.5; the above refuse - 56.4; the above powder - 9.4; superplasticising agent SP-1 - 0.135; water is the rest.

EFFECT: it is not required to use Portland cement, and aged ground slag of lower grade and aged dolomite powder is used instead of it; therefore, standard strength of stowing mass and movability of stowing mixture is provided; volumes of utilised technogenic wastes are increased in order to sufficiently improve the environmental conditions of the region.

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