HYBRID CEMENT Russian patent published in 2020 - IPC C04B7/14 C04B7/153 C04B24/26 C04B111/20 

FIELD: construction; chemistry.

SUBSTANCE: invention relates to compositions of hybrid binder based on ground granulated metallurgical slag and can be used in underground, transport and civil construction for making concrete. Binder including ground granulated blast-furnace slag, phosphogypsum, portland cement clinker, unslaked lime, mineral additive – schungizite with content of microparticles smaller than 50 mcm more than 90 % and superplasticizer MELFLUX 2651F at the following component ratio, wt%: granulated blast-furnace slag 80.1–84.2, quick lime 6.5–7.8, portland cement clinker 6.7–7.4, schungizite 2.0–3.5, superplasticizer MELFLUX 2651F 0.4–0.8, phosphogypsum is the rest.

EFFECT: technical result is to create a binder with reduced water demand with high strength and frost resistance.

1 cl, 3 tbl