FIELD: construction.
SUBSTANCE: invention relates to the production of building materials and products, in particular to structural and heat-insulating lightweight concrete for enclosing structures, and can find application for the manufacture of lightweight construction products and structures with increased heat-saving properties and plaster solutions for thermal insulation coating of the external and internal sides of the walls of building structures. Building mixture includes, by mass %: hollow microspheres of fly ash and / or hollow microspheres of foam glass with diameters of 10 mcm – 2 mm and bulk density of 100–360 kg/m3 61–80, expanded pearlite sand or expanded perlite sand hydrophobized 4–18, portland cement 8–10, polymeric binder is an aqueous copolymer emulsion based on acrylic or methacrylic acid derivatives 8–12.
EFFECT: decrease in density, increase of moisture resistance, heat-insulating and sound-absorbing properties while providing high strength characteristics of the building material.
1 cl, 1 tbl
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Authors
Dates
2018-05-07—Published
2017-04-04—Filed