FIELD: chemistry.
SUBSTANCE: invention relates to a composition comprising 5-50% by weight of calcium silicate hydrate, 10-60% by weight of at least one water-soluble, including acidic polymer groups, containing polyester groups and 5-40% by weight of at least one polyalkylene glycol ether. Also a process for the preparation of this composition and cementitious mixtures comprising the composition is disclosed. It is a further object of the present invention to use the compositions of the invention in cementitious mixtures to accelerate the development of a long period of time for the dispersing action of the acid group-containing polymer after adding water for mixing and, accordingly, accelerated molding of the mixture. Invention is developed in dependent claims of the invention.
EFFECT: technical result is the rapid curing of the cementitious composition.
15 cl, 3 tbl
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