HARDENING ACCELERATOR COMPOSITION Russian patent published in 2018 - IPC C04B28/02 C04B22/08 C04B24/26 C04B103/14 C04B103/32 

FIELD: chemistry.

SUBSTANCE: method for preparing a hardening accelerator composition is carried out by reacting a calcium source selected from calcium hydroxide, calcium oxide and calcium hydroxide-forming compounds, with a water-soluble silicate compound in the presence of at least one water-soluble polymeric dispersing agent which includes anionic and/or anionogenic groups and polyether side chains, wherein the water-soluble silicate compound is selected from an alkali metal silicate of formula mSiO₂⋅nM₂O, where M is Li, Na, K or NH₄, or mixtures thereof, m and n are molar numbers, and the ratio of m and n is from 2.5 to 4. Invention is developed in subclaims.

EFFECT: invention relates to a process for preparing a hardening accelerator composition, to the use of a hardening accelerator composition in building materials, to a mixture of building materials containing a hardening accelerator composition.

15 cl, 1 dwg