FIELD: manufacture of building materials. SUBSTANCE: structure is made of concrete mix containing head of 0.15-5 mm fraction and also fine head with specific surface 1500-2000 sq.cm/g (mineral cotton production waste). Physico-mechanical characteristics: temper strength after heat treatment 7.5-35.5 MPa, design strength at 28 days age 17-49.5 MPa, frost resistance F up to 300. EFFECT: improved performance characteristics.
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