BUILDING MORTAR Russian patent published in 2006 - IPC C04B38/10 C04B22/08 C04B24/14 C04B103/42 

FIELD: manufacture of building materials.

SUBSTANCE: building mortar including Portland cement, sand, foaming agent, and water contains, as foaming agent, protein-containing substance modified with complex modifier M-3 consisting of 0.04% aqueous emulsion of colophony and 0.1% aqueous solution of gelatin using following proportions: 3.6-3.8% of protein-containing substance, 57.6-57.8% of colophony emulsion, and 38.5-38.6% of gelatin solution. Mortar further contains stabilizer, in particular orthosilicic acid (H₄SiO₄) sol with pH 3.1-4.0 and potassium ferricyanide additive. Total composition of mortar is thus as follows, wt %: Portland cement 40.770-42.410, sand 39.621-40.728, modified protein-containing foaming agent 2.311-2.374, orthosilicic acid sol 0.023-0.025, potassium ferrocyanide 0.061-0.063, and water 15.575-16.040. Mortar is suitable for use when mason's and plastering operations are carried out.

EFFECT: reduced mean density of mortar and heat conductivity coefficient, increased mortar stability.

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