FIELD: chemical or physical processes.
SUBSTANCE: invention relates to use of an alkali metal carbonate for reducing the effect of magnesium carbonate on accelerating additives, in particular an ester of phosphoric acid and a polyatomic alcohol, in a composition of a mineral binder containing magnesium carbonate, and/or for improving the action of the accelerating additive, in particular an ester of phosphoric acid and a polyatomic alcohol, in a composition of a mineral binder containing magnesium carbonate.
EFFECT: technical result is reducing effect of magnesium carbonate on accelerating additives.
9 cl, 6 tbl
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