FIELD: building materials. SUBSTANCE: products of oxidation of iron sulfate (II) aqueous solutions and/or pulp of compounds containing iron and sulfur are added to concrete mixture as an addition in the presence of microorganisms Thiobacillus ferrooxidans. Invention can be used in concrete mixtures in building works and underground mining drifts laying. EFFECT: enhanced strength, decreased cement consumption. 1 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| COMPOSITION OF FILL MACHINE | 2000 |
|
RU2186222C2 |
| COMPOSITION OF FILLING MIXTURE | 2001 |
|
RU2186989C1 |
| METHOD OF COMPACT METALS LEACHING OUT FROM ROCK DUMPS OF MINING-ORE PLANTS | 2000 |
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| METHOD OF EXTRACTION OF NOBLE METALS FROM SULFIDE MATERIALS | 2001 |
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| CONCRETE MIX | 0 |
|
SU1689343A1 |
| CONCRETE MIX | 0 |
|
SU986891A1 |
