FIELD: construction.
SUBSTANCE: invention relates to constructional materials and can be used as a complex additive to a mortar mixture when producing foam concrete. Complex additive for the foam concrete mixture includes, % by weight: calcium carbonate with fineness of grinding 3,000 cm2/g 90–95, metakaolin, pretreated with a stream of accelerated electrons at an electron energy of 900 keV and a current of 1 mA with an absorbed dose of 300 kGy, 5–10.
EFFECT: cutting of shrinkage upon drying and thermal conductivity of the foam concrete.
1 cl, 1 tbl, 1 ex
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Authors
Dates
2018-04-24—Published
2017-04-25—Filed