DRY HEAT INSULATING MIXTURE FOR GAS-CONCRETE FINISHING Russian patent published in 2018 - IPC C04B41/50 C04B28/10 

FIELD: construction.

SUBSTANCE: dry mortar, used as a plaster for external and internal walls of buildings made of gas-concrete, contains, wt %: dry hydrated lime 48.69-50.86; as a filler - hollow glass microspheres 15.26-24.34; as a mineral additive - a mixture of calcium silicates, which is produced by causticization of a solution of sodium liquid glass with calcium hydroxide and treatment of the resulting mixture with a solution of aluminium sulfate Al₂(SO₄)₃ along with flushing the resulting precipitate with water and drying at a temperature of t=105±5°C, 3.89-6.10; white cement 9.16-10.71; ground gas-concrete 7.79-12.21; as a plasticiser - additive Melflux 2651F 0.66-0.83; as a polymeric additive - redispersible powder Vinnapas 8031H 2.92-5.09; as a water-repelling agent - sodium oleate 0.66-0.83.

EFFECT: increase in compressive strength, decrease in average density and thermal conductivity.

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