FIELD: chemistry.
SUBSTANCE: present invention relates to a method of producing a powder which hardens in water and can be used in production of construction materials, for example cement. The method of producing a water-hardening powder involves a step of grinding a water-hardening compound in the presence of a compound (a), which is a compound obtained by adding an average of 0.5-6 moles of ethylene oxide to 1 mole of glycerol, provided that polyethylene glycol and polypropylene glycol are excluded. An antifoaming agent can further be added when grinding. The invention is developed in subclaims.
EFFECT: high strength of cement and retention of said strength.
4 cl, 12 ex, 6 tbl
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