FIELD: construction.
SUBSTANCE: invention relates to a composition of a crude mixture for producing high-strength concrete and can be used in production of construction materials. Composition of crude mixture for producing high-strength concrete contains portland cement, aggregate, silica-containing component, super plasticiser based on polycarboxylate ether and water, aggregate is a mixture of fractions of quartz sand with particle size from 0.1 to 0.4 mm and 0.4÷1.2 mm, silica-containing component is microsilica, composition additionally contains diabasic flour and dispersion reinforcing component in following ratio of components, wt%: portland cement 29–33, quartz sand fraction 0.4÷1.2 mm 30÷33, quartz sand fraction 0.1÷0.4 mm 8÷10, microsilica 8÷10, microfiller 8÷10, dispersion-reinforcement component 1.5, plasticiser 1.5÷2, water 5.5–6.0.
EFFECT: high strength, water impermeability and frost resistance of concrete.
1 cl, 3 tbl
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