RAW MIX FOR AUTOCLAVE-FREE SILICATE MATERIAL Russian patent published in 1994 - IPC

Abstract RU 2024460 C1

FIELD: manufacture of autoclave-free wall and free silicate material. SUBSTANCE: in order to prepare a raw mix, the following components are used (wt % ): 5-20 iron are beneficiation waste; and 10-30 ferrosilicium production dust, to reduce the raw mix preparation time, 0.5-20% blast furnace granular slag may be additionally added, and to reduce the duration of the technological cycle for manufacturing an autoclave-free silicate material, the time-containing component may be the dust resulting from the aspiration of lime kilns retain portions of the previously prepared dry components of the raw mix are stirred, moistened to a molding moisture content of 10 wt %, once again stirred and kept in desiccators for 2 hours. The resulting mixture is additionally made moistened to prepared nonstratifying solid raw material and cylindrical specimens are stirred and pressed. They are subjected to heat moisture treatment in a steam curing chamber for 1-1.5+2+6+2 hr and maintained at an isothermal temperature of 90± 2°C. EFFECT: improved mechanical strength by 3-6 times, water resistance by 25-70% and frost resistance for at least 25 cycles. 3 cl, 3 tbl

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RU 2 024 460 C1

Authors

Ovcharenko G.I.

Sviridov V.L.

Tjurin A.A.

Milovanova R.G.

Dates

1994-12-15Published

1991-07-18Filed