FIELD: isolating work in wells. SUBSTANCE: method for production of waterproofing compound includes treatment of silicate-containing additive with acid modifier. Silicate-containing additive is used in form of nepheline-containing powdery material. For instance, ground nepheline ore or tailings, or conditioned nepheline concentrate. Acid modifier is used in form of 5-20% aqueous solution of strong acid in the amount of 4 to 15 mas.p per mas.p. of nepheline-containing powdery material. EFFECT: higher efficiency. 1 tbl
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Authors
Dates
1996-07-27—Published
1994-07-15—Filed