METHOD FOR PREPARING CONCRETE MIX Russian patent published in 2022 - IPC C04B40/00 C04B14/06 C04B28/04 C04B103/32 

FIELD: concrete mixtures preparation.

SUBSTANCE: invention relates to the preparation of concrete mixtures. The method includes mixing aggregates, cement, plasticizer and pre-activated water. In this case, the preliminary activation of water is carried out using a magnetic activator. The mixing of the mixture is carried out in two stages: first, 23-27% of pre-activated water is loaded into the mixer, all fine aggregate in the form of quartz sand with a fineness modulus of 1.48 of the Leventsovskoye deposit of the Rostov region, 60-70% of coarse aggregate in the form of crushed stone of fraction 5-20 mm from dense sandstone of the Potapovsky field of the Rostov region. They are mixed until a semi-dry mixture is obtained. Then the rest of the coarse aggregate, cement in the form of Portland cement PC 500, a plasticizing additive are added to the resulting mixture, which is used as a superplasticizer ST5.0 of complex action on a polycarboxylate basis manufactured by SkyTrade LLC with the rest of the water and mixed until a homogeneous concrete mixture of the required workability.

EFFECT: simplification of the concrete mix preparation technology, expansion of the raw material base of small aggregates, increase in the strength of concrete, which makes it possible to reduce cement consumption by 25%.

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