MORTAR Russian patent published in 2010 - IPC C04B28/08 C04B111/20 

FIELD: chemistry.

SUBSTANCE: invention pertains to production of construction materials. The mortar contains the following in wt %: portland cement 8-15; metallurgical slag - dry cooling steel-smelting slag of having the following composition in wt %: CaO 44.0-48.3; SiO₂ 25.6-27.1; Al₂O₃ 2.4-3.2; Fe₂O₃ 10.2-11.1; MnO 1.4-2.04; MgO 6.0-7.2; Cr₂O₃ 0.6-1.2, ground to specific surface area of 490 m²/kg, 32-45; sand which is activated in a stream under the effect of electromagnetic radiation in the UV range 15-28; dust from electrofilters of cement factories 8-15; water - the rest. The mortar contains the said autoclaved slag.

EFFECT: increased compression strength of concrete made from the proposed mortar.

2 cl, 2 ex