DRY FILLING MIXTURE Russian patent published in 2015 - IPC C04B28/22 C04B41/65 C04B111/27 

FIELD: chemistry.

SUBSTANCE: invention relates to construction materials and can be used to finish concrete and plastered surfaces. A dry filling mixture, which includes air-slaked lime, filler, plasticising, mineral and polymer additives, contains Kratasol-PFM as the plasticising additive, redispersible Neolith P 4400 powder as the polymer additive, synthetic aluminosilicates as the mineral additive, says aluminosilicates being obtained by mixing water and aluminium sulphate to obtain a solution with pH 4, raising the pH to 8.5-11 by adding sodium silicate while stirring, separating the obtained precipitate, washing the precipitate until obtaining a filtrate with pH 6 and drying the precipitate, and chalk as filler, with the following ratio of components, pts.wt: air-slaked lime 58.9-66.7, filler - chalk 28.2-31.8, mineral additive - synthetic aluminosilicates 5.9-6.7, polymer additive - redispersible Neolith P 4400 powder 0.29-0.31, plasticising additive - Kratasol-PFM 0.57-0.63.

EFFECT: faster hardening of the composition and high water resistance.

5 tbl