HIGH-STRENGTH FINE GRAIN CONCRETE ON COMPOSITE BINDER BASIS WITH APPLICATION OF TECHNOGENIC RAW MATERIAL Russian patent published in 2017 - IPC C04B28/04 C04B14/06 C04B24/26 C04B111/20 

FIELD: construction.

SUBSTANCE: high-strength fine grain concrete, based on a composite binder, using the technogenic raw materials quartzite sandstone contains the portland cement, an active additive, a filler, an aggregate, a plasticizing additive and water, the alumina cement and microsilica are used as the active additive, the technogenic raw material quartzite sandstoneas is used as the filler, the quartz sand and quartzite sand crushing screening are used as the aggregate, the hyperplasticizer Melflux 2651 F is used as the plasticizing additive and the water with the following ratio of components, %: the portland cement - 21.0-21.7, the alumina cement - 2.0-2.1, the microsilica - 2.0, the technogenic raw material quartzite sand - 1.6-1.9, the quartz sand - 20.5-21.0, the quartzite sandstone crushing screening 46.5-47.0, the hyperplasticizer Melflux 2651 F-0.2, the water - the rest.

EFFECT: production of high-strength fine-grained concrete with the portland cement low consumption, low water absorption, while maintaining its high strength and density.

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