FIELD: industry of building materials.
SUBSTANCE: invention relates, in particular, to preparing monolith concrete or ferroconcrete used in civil and industrial building. The concrete mixture comprising sand and crushed stone as a filling agent, a plasticizing agent, cement and water involves additionally the technological additive representing product of interaction of triethanolamine and higher unsaturated fatty acids or their mixtures with saturated fatty acids wherein the content of unsaturated fatty acids is 80%, not less, in the mole ratio of triethanolamine to higher unsaturated fatty acids from 1:0.8 to 1:1.35 in the following composition of the concrete mixture, kg/m3, cement, 350-362; sand, 735-770; crushed stone, 1072-1120; water, 168-181; plasticizing agent, 0.35-0.60, and indicated additive, 0.0006-0.008% of cement mass. Invention provides enhancing degree of concrete density and durability of concrete constructions, effectiveness of foam quenching and acceleration of concrete hardening for the first days.
EFFECT: improved and valuable properties of concrete mixture.
2 tbl
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METHOD OF PREPARING CONCRETE MIXTURE | 2008 |
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Authors
Dates
2006-08-27—Published
2004-06-21—Filed