NANOMODIFIED BUILDING MORTAR Russian patent published in 2021 - IPC C04B28/04 B82B1/00 

FIELD: building materials.

SUBSTANCE: invention relates to building materials and can be used in masonry from ceramic stones, ceramic bricks, hollow bricks in the conditions of a dry hot climate at ambient temperatures reaching 40 to 50°C. The technical result is achieved due to the fact that the building mortar consists of the following components ( wt.%): portland cement - 10.80 to 16.90; sand with a fineness modulus from 1.5 to 2.0 for building works - 69.50 to 80.70; amorphous nanomodified silicon dioxide - 0.01 to 0.12; citric acid - 0.002 to 0.02 or nitrilotrimethylene phosphonic acid - 0.012 to 0.035, or sodium gluconate - 0.005 to 0.05, or technical sodium lignosulphonate - 0.01 to 0.05; saponified wood resin - 0.02 to 0.15 or neutralised air-entraining resin - 0.01 to 0.15; water - 8.5 to 13.0.

EFFECT: provided necessary mobility, water-retaining capacity and adjustable setting time of the building mortar.

1 cl, 2 tbl