FIELD: construction.
SUBSTANCE: composition for manufacturing of silicate brick, containing quartz sand and lime, additionally contains alumina-alkaline slurry - waste of metal processing production, which contains the following components, wt %: Al2O3 48.10; Fe2O3 0.8; CaO 2.0; MgO 4.4; SO3 1.6; Cl 0.75 Na2O+K2O 13.0, at the following ratio of components, wt %: quartz sand 84-88, lime 6-8, alumina-alkaline slurry 6-8.
EFFECT: improved strength.
2 tbl
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RU2363682C1 |
