FIELD: building materials. SUBSTANCE: method of manufacturing cellular concrete articles and structures includes supply of raw material components without heating; measuring and mixing of raw material components; supply of molding mixture to nonheated mold and without holding, combining of formation of porous structure with steam treatment at atmospheric or excessive pressure. Steam treatment is carried out at atmospheric pressure with heating rate from 40 to 80 C/h up to 60-100 C, and at excessive pressure with pressure rising rate of 0.67 MPa/h up to pressure of 0.005-1.0 MPa. The method provides for reduction of average density of cellular concrete, simplification of manufacture conditions and reduction of production process cycle. EFFECT: higher efficiency. 2 tbl
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