FIELD: building industry.
SUBSTANCE: invention relates to composite of raw mixture used for preparing clinker for sulfate-resistant Portland cement and can be used in industry of building materials. Raw mixture for preparing clinker for sulfate-resistant Portland cement comprises carbonate component, the erupted volcanic rock and, additionally, clay and correcting iron additive. Indicated rock comprises solid solutions of augitic-anorthite or hypersthene-augitic-diabase order in the following ratio of components, wt.-%: carbonate component, 60-85; clay, 10-20; iron additive, 1-8; indicated rock, the balance.
EFFECT: expanding raw base for preparing sulfate-resistant Portland cement, enhanced resistance to cold.
2 cl, 2 tbl
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