FIELD: construction.
SUBSTANCE: invention relates to a construction material mixture used as a concrete additive, where construction material mixture contains a pozzolanic substrate and a photocatalyst. Pozzolanic substrate and photocatalyst are present as a dry mixture. Photocatalyst has a primary particle size between 2 nm and 100 nm, and at least 90 wt% of pozzolanic substrate consists of fly ash with a grain size between 0.1 mcm and 1 mm. Substrate and photocatalyst are intensively mixed such that photocatalyst is at least partly distributed on surface of substrate. Invention also relates to a method of producing photocatalytic mixture. Invention is developed in subclaims of formula of invention.
EFFECT: improved workability of concrete mixture in comparison with other pozzolanic catalyst substrates.
11 cl, 3 tbl, 3 dwg
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