FIELD: chemistry.
SUBSTANCE: raw material mixture includes, wt %: dust of gas purification of ferroalloy production 63.6-68.6; carbonated loam 27.3 - 29.4; mineral sludge of gas purification of recultivated sludge-collector of aluminium production 2.0 - 9.1. Frost resistance of a mixture constitutes 75 cycles. Burning of a half-product is performed at a temperature of 950°C.
EFFECT: increased frost resistance.
1 tbl
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Authors
Dates
2014-07-20—Published
2012-12-04—Filed