| 摘要 |
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 |
