EXTRA-STRONG FINE GRAIN CONCRETE ON BASIS OF COMPOSITION BONDING SUBSTANCE WITH USE OF MAN-TRIGGERED RAW MATERIAL Russian patent published in 2017 - IPC C04B28/04 C04B14/06 C04B18/12 C04B24/26 C04B103/32 C04B111/27 

FIELD: construction.

SUBSTANCE: extra-strong fine grain concrete on the basis of composition bonding substance with use of man-triggered grog refractory material contains portland cement, active additive, filler, aggregate, plasticizing additive and water; as an active additive, alumina cement and microsilica are used; as a filler grog refractory technogenic material with a specific surface of 450-500 m²/kg is used; as a filler fraction glass sand of 0.63-1.25 mm and the fraction quartzitic sandstone crushing out screening of1.25 mm is used; as a plasticizing agent hyperplasticizer Melflux 2651 F and water is used with the following ratio of components, wt %: portland cement - 20.0-21.0, alumina cement - 2.0-2.1, microsilica - 2.0, grog refractory technogenic material - 0.7-1.7, quartzitic sandstone - 20.5-21.5, screening of quartzite sandstone crushing out - 46.5-47.5, hyperplasticizer Melflux 2651 F- 0.2, water is the rest.

EFFECT: invention makes it possible to produce extra-strong fine grain concrete with use of man-triggered grog refractory material as a filler, which has a low consumption of portland cement in the composition of the raw mix, low water absorption, while maintaining its high strength and density.

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