HIGH-STRENGTH POWDER-ACTIVATED CONCRETE Russian patent published in 2021 - IPC C04B28/02 

FIELD: building materials.

SUBSTANCE: invention relates to building materials and can be used in the production of structures and products made of concrete on a cement binder for buildings and structures of civil, industrial and special purposes. High-strength powder-activated concrete from a mixture including binder, quartz sand, filler - finely ground quartz powder or limestone, a hyperplasticizer of the «Melflux 2651 F» brand and mixing water, characterized in that the binder contains, wt.%: Portland cement clinker 70, fly ash - 26, dihydrate gypsum - 3 and sodium sulfate - 1, the filler has a specific surface area of ​​600 m²/kg, and the filler uses fractions of 0.63-5.0 mm, activated water is used as mixing water, with the introduction of copper oxide-hydroxide compounds in an amount of 7...69 g/m³, which underwent electrochemical and electromagnetic activation at a current density in the electrochemical activation chamber 5,65...43.55 A/m² and the strength of the electromagnetic field in the working gaps of the electromagnetic activation chamber 24...135 kA/m.

EFFECT: creation of high-strength powder-activated concrete with a reduced consumption of cement clinker and increased indicators of crack resistance and biological resistance due to a rationally selected composition, including a composite binder and activated mixing water.

1 cl, 3 tbl