FAST-HARDENING CONSTRUCTION COMPOUND BASED ON STEEL SLAG Russian patent published in 2018 - IPC C04B7/19 C04B18/14 C04B7/153 C04B28/04 

FIELD: construction.

SUBSTANCE: fast-hardening construction compound based on steelmaking slag is designed for repair and restoration work. achieved technical result is a reduction of the setting time and an increase in the strength of solidified mixture. Fast-hardening construction compound contains mass percentages of the components: portland cement – 55–65 %; steel-smelting slag – 25–30 %; gypsum – 10–15 %. As steelmaking slag electric steel-smelting slag is used, aged for 6–8 months under normal conditions (otherwise, stabilized electric steelmaking slag), subjected milling to a specific surface of 5,200 cm²/g before introduction into the mixture.

EFFECT: mixture is prepared by co-grinding the components to a specific surface of 6,770 cm²/g.

1 cl, 7 dwg, 2 tbl