FIELD: construction.
SUBSTANCE: invention relates to construction materials and can be used for making light concrete used in industrial and civil construction. Crude mixture for foam concrete contains, wt%: portland cement 46.10–48.60, sand with specific surface area Ssp.=200 m2/kg 11.0–11.52, 25 % solution of polycarboxylate polymer CP-WRM, represented by a copolymer of acrylic acid and ethyl ester of methacrylic acid with pH value of 6, density ρ=1.033 g/cm3, 0.42–0.46, granular foam glass with particle size of 1.25 mm and bulk density ρ=250 kg/m3 18.48–19.47, water 21.5–22.45.
EFFECT: high compression strength and low coefficient of heat conductivity of foam concrete.
1 cl, 1 tbl, 1 ex
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Authors
Dates
2020-02-04—Published
2019-06-27—Filed