METHOD OF PREPARING CONCRETE MIXTURE Russian patent published in 2018 - IPC C04B40/00 

FIELD: construction.

SUBSTANCE: invention relates to the field of construction, namely to methods for preparing a concrete mixture and mortar, concrete and structures and can be used in the technology of production of products and structures in prefabricated housing construction and in monolithic construction. Method of preparation of a concrete mixture includes the treatment of a solid cement binder with a vortex layer of anisotropic ferromagnetic bodies in a nonmagnetic vessel located in an apparatus with an external electromagnetic field. Binder together with the carbon nanotubes and the superplasticizer in the form of a powder are fed through a rotating screw through the inner cavity of the non-magnetic continuous tube to the zone of rotating anisotropic ferromagnetic bodies with a diameter of 1.2 mm and a length of 5–10 mm, having an energy saturation of the working zone of at least 100 kW/m³, the motion of which is provided by the apparatus with an external electromagnetic field.

EFFECT: technical result is an increase in the mobility of the concrete mixture, increase in the early and vintage strength of concrete products for compression.

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