CRUDE MIXTURE FOR PROTECTIVE COATING Russian patent published in 2016 - IPC C04B28/04 C04B41/50 C04B111/20 

FIELD: construction.

SUBSTANCE: invention relates to construction materials and can be used for protection of various surfaces. Crude mixture contains portland cement, sand with particle size 0.315 mm, water and a complex additive consisting of a silica-containing component represented by white soot BS 50, and a polycarboxylate polymer based on methacrylic acid at ratio, wt%: 93.7-94.3 and 5.7-6.3 and respectively with following ratio of components, wt%: portland cement 34.48-36.48, said sand 43.72-44.82; said additive 6.4-6.9; water 13.4-13.8.

EFFECT: technical result is high corrosion resistance relative to magnesia corrosion.

1 cl, 1 tbl