INSULATING MORTAR COMPOSITION Russian patent published in 2018 - IPC C04B28/04 C04B28/10 C04B28/12 C04B38/00 C04B38/08 

FIELD: chemistry.

SUBSTANCE: group of inventions refers to a lightweight insulating mortar and its use in construction for coating and/or treating surfaces or walls of buildings, facades. Lightweight insulating mortar with a density below 300 kg/m³ in the cured state, containing in relation to the total composition of the mortar: at least one inorganic binder, selected from cement and lime, in an amount of 50 to 95% by weight, at least 1% by weight of the polymeric additive, at least 0.2% by weight of a rheological additive selected from cellulose ethers, starch esters and mixtures thereof, as well as at least 70% by volume of lighteners having a thermal conductivity of less than 55 mW/m⋅K, and, if necessary, fillers. These facilitators are chosen from expanded polystyrene, airgels, hollow glass microspheres, foam glass beads, cenospheres, vermiculite and perlite. At least 10% by weight of said inorganic binder is substituted with a pozzolanic additive. Insulation coating is obtained after mixing with the water of the above lightweight mortar.

EFFECT: technical result is an increase in thermal insulation properties, mechanical strength and fire resistance.

16 cl, 4 tbl, 2 ex