DRY CONSTRUCTION MIXTURE Russian patent published in 2015 - IPC C04B28/04 C04B18/04 C04B22/00 C04B103/46 C04B111/40 

FIELD: construction.

SUBSTANCE: dry construction mixture comprises portland cement, silica sand with fineness module equal to 0.95-1.1 and filler. What is new is that it contains the ferric hydrate cake as the filler - non-ferrous metal waste, ground to the fineness module of 0.90-0.95, at the following ratio of components, wt %: Portland cement 25-27, the mentioned ferrous hydrate cake 20-30; the mentioned quartz sand - the rest.

EFFECT: increase of water-holding capacity, improved heat engineering indexes by reducing the density, increased strength, application of cakes in dry construction mixtures expands the range of raw materials, saves natural resources, required for manufacture of building lime, improved environmental situation by reducing the emission of industrial wastes into the environment.

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