HIGH-STRUCTURE GROUTING MIXTURE Russian patent published in 2013 - IPC C09K8/467 

FIELD: mining.

SUBSTANCE: high-structure grouting mixture contains plugging Portland cement, gel powder -bentonite, alumina sulphate, hollow glass microspheres, high-water-demanding fine binding agent - Mikrodur or INTRATSEM and water at the following ratios of components to plugging Portland cement, wt %: plugging Portland cement 100, gel powder - bentonite 25.0-50.0, alumina sulphate 0.5-6.0, light-weight additive 5.0-10.0, high-water-demanding fine binding agent 5.0-10.0, and water 195-340.

EFFECT: reduction of density of grouting mixture at simultaneous increase in its mobility during the initial period and improvement of adhesive bond of a stone to mine rock.

1 ex, 2 tbl