RESTORATION DRY MIXTURE Russian patent published in 2017 - IPC C04B28/20 C04B38/02 C04B111/72 

FIELD: construction.

SUBSTANCE: restoration dry mixture comprising a lime binder, quartz sand of the fraction 0.1-2.5 mmas a filler, dry plasticiser C-3 as a plasticizing additive, potato starch as a water-retaining additive, metakaolin as an active mineral additive, Ufapore TLA porogen as an air-entraining additive, the polypropylene fiber with the length 6 mm as a fiber, at the following ratio of components, wt %: lime binder 16-20, quartz sand of the fraction 0.1-2.5 mm 75.55-81.78, dry plasticiser C-3 0.1-0.2, potato starch 0.1-0.2, metakaolin 2-4, Ufapore TLA porogen 0.01-0.02, polypropylene fiber with the length 6 mm 0.01-0.03, where the lime binder was obtained by means of co-grinding powdered lime and dolomite flour in a disintegrator at the ratio 1:1 to the particle size of 10-30 mcm. The invention is developed in the dependent claim of the formula.

EFFECT: improvement of technology for obtaining the lime binder due to reducing the hydrated lime consumption with simultaneously increasing the yield of the lime paste; increasing the preservation time of the initial mobility of the lime paste; absence of signs of the binder volume change unevenness during hardening.

2 cl, 3 tbl