FIELD: building.
SUBSTANCE: invention relates to building structures, more specifically, to building structures containing heat-insulating cavities; even more specifically, to an insert for the heat-insulating cavity of a building structure, a method for the production thereof, and a method for producing the heat-insulating building structure. According to the invention, insert for the heat-insulating cavity of a building structure is made of a foaming material including, wt. pts.: low-density polyethylene 100.0; azodicarbonamide 8.0 to 12.0; dicumyl peroxide 0.3 to 0.8; ethylene-propylene rubber with a 50 to 70 wt.% ethylene unit content 1.0 to 10.0; butyl rubber 2.5 to 7.5; zinc stearate 1.5 to 2.5; zinc oxide 0.4 to 0.8. Method for producing the insert includes the stages of preheating the ingredients to a temperature of 115 to 130 °C and feeding the melt thereof into a rotary mixer in the form of tangentially directed streams, forming a foaming compound used to form the target product in the form of a long-length cord at a temperature of 100 to 130 °C. Method for producing a heat-insulating building structure includes the stages of laying said insert into the cavity of a building structure while ensuring the 1:15–20 ratio of the cross-sectional area thereof to the cross-sectional area of the cavity of the building structure, and subjecting to subsequent heat treatment at 175 to 185 °C, resulting in foaming and the target heat insulation of the cavity of the building structure.
EFFECT: claimed method for producing a heat-insulating building structure provides an easier and more convenient industrial process to ensure the possibility of filling the full volume of the heat-insulating cavity with a foamed insert, resulting, in turn, in the target effectiveness of the heat-insulating cavity.
6 cl, 1 tbl, 7 ex
