FIELD: construction.
SUBSTANCE: invention relates to production of construction materials, particularly to production of light concrete. Concrete mixture for light concrete contains, wt. %: portland cement - 17.0–19.0, siliceous moulding box with fineness modulus Mfin 1.8–2.0 - 60.2–64.75, crumb formed during cutting of finished heat-insulating PIR boards based on foamed polyisocyanurate, 0.8–5.0 mm fraction - 1.5–3.0, MasterPolyheed 3045 superplasticiser - 0.3-0.9, water is the balance.
EFFECT: technical result is high strength and frost resistance of light concrete with relatively low density and low heat conductivity.
1 cl, 2 tbl, 1 ex
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