DRY CONSTRUCTION MIXTURE Russian patent published in 2014 - IPC C04B28/04 C04B111/20 

FIELD: chemistry.

SUBSTANCE: invention relates to construction materials and specifically to multicomponent dry construction mixtures, and can be used in making a thin reinforced cladding for large concrete blocks in large concrete block building construction, including for repairing the surface of large concrete blocks, floor slabs, supporting frames etc. The dry construction mixture includes mineral binder, natural quartz sand and crushed limestone screenings, a complex additive UP-4 and waste polypropylene fibres, with the following ratio of components, wt %: portland cement - 19.65-18.7, natural quartz sand Mk-1.82 - 43.0-37.0, crushed limestone screenings with particle size of 0-5 mm - 37.0-44.0, complex additive UP-4 - 0.15-0.1, waste polypropylene fibres - 0.2.

EFFECT: low consumption of portland cement, improved adhesion properties and workability, high compression and tensile strength, preventing corrosion of fibres during use of the article.

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