FIELD: manufacture of building materials. SUBSTANCE: concrete mix designed for use in poured-in-place and block construction is prepared first in hydro-mixer and then in average mixer, wherein foaming is effected by way of pumping the mix through ejector-aerator under pressure with simultaneously introducing a surfactant, whereupon foamed mass is additionally fed into static mixer provided that ejector-aerator and static mixer are disposed before cellular-concrete mix delivery post. EFFECT: improved homogeneity and stability of mix with possibility of transferring it to longer distances in horizontal and vertical directions. 1 dwg
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