FIELD: construction; concrete guard structures. SUBSTANCE: guard structure is made of concrete mix with fillers possessing absorption-desorption properties. Concrete mix contains cement, coarse filler with fractions sizing 5-10 and 10-20 mm, fine filler with fractions of 0.15-5 mm. The latter is used in the form of waste of mineral wool production or its mixture with quartz sand and active mineral additive in the form of finely ground above-mentioned waste with specific surface of 1500-2000 sq.cm/g and water. Concrete mix may additionally contain air-entraining additive to impart moderate porosity to mix and its simultaneous plasticization. Mechanical and physical characteristics of concrete: temper strength after heat treatment, 4.21-7.56 MPa; strength after heat treatment, 4.21-7.56 MPa; strength after 28 days of normal wet hardening (brand), 5.81-10.61 MPa; brand by frost resistance G 50-G, 100; heat conductivity coefficient in dry state, 0.26-0.36 W/mC. EFFECT: higher efficiency. 2 cl
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