FIELD: manufacture of building products from cement-and sand mixes. SUBSTANCE: method comprises mechanically mixing cement, sand water and plasticizing additive in high-speed mixer, cement, sand, water and plasticizing additive being charged simultaneously into high-speed mixer, and stirring is carried out for not less than 2 m and not more than 4 minutes. Moreover, sand for preparing hardenable mixture has grain size of at least 2.2 mm. EFFECT: more efficient preparation method. 3 cl
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