CRUDE MIXTURE FOR HIGH-STRENGTH CONCRETE WITH NANODISPERSED ADDITIVE (VERSIONS) Russian patent published in 2013 - IPC C04B28/02 B82B1/00 C04B111/20 

FIELD: chemistry.

SUBSTANCE: invention relates to the industry of construction materials and can be used to make concrete articles in civil and industrial construction, as well as in nanotechnology. The crude mixture for high-strength concrete with a nanodispersed additive, which contains binder, quartz-feldspar sand with fineness modulus of 2.1, granite screenings with particle size of 2.5-5 mm, an additive and water, the additive being nanodispersed silicon dioxide powder Tarcosil-05, which is subjected to ultrasonic pretreatment in a disperser UZDN-A with hardening water, the binder being a low water demand binder VNV-100, with the following ratio of components, wt %: VNV-100 26.3-26.66, quartz-feldspar sand with fineness modulus of 2.1 32.88-33.2, granite screenings with particle size of 2.5-5 mm 32.88-33.2, nanodispersed silicon dioxide powder Tarcosil-05 0.013-0.052, water 6.888-7.927. In another version, the crude mixture contains low water demand binder VNV-100 with pearlite as filler, with the corresponding adjustment of the ratio of components of the crude mixture.

EFFECT: high compression and bending strength at the design phase and low water absorption, low cement consumption.

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