FIELD: construction.
SUBSTANCE: invention relates to complex organomineral additives to Portland cement. In particular additive enables to save up to 30–40 % of clinker part of cement. Complex additive contains as a mineral component a mixture, consisting of metakaolin, tripoli and flue ash, and as a chemical additive – polycarboxylate-based super plasticizer Pantarhit PC160 Plv or naphthalene formaldehyde superplasticizer SP-1, in following ratio of components, wt%: metakaolin 19–20, tripoli 6–9.5, flue ash 70–73, Pantarhit PC160 Plv or SP-1 1–1.5.
EFFECT: technical result is saving cement, increased strength, water impermeability, frost resistance of obtained articles.
1 cl, 2 tbl
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