FIREPROOF CEMENT-FREE CONCRETE MASS Russian patent published in 2015 - IPC C04B35/66 

Abstract RU 2546692 C2

FIELD: chemistry.

SUBSTANCE: concrete mass contains, wt %: reactive alumina - 6.5-13.0; active alumina - 2.0-5.0; micro silica - 2.0 - 5.0; electrocorundum of a fraction less than 63 mcm - 4.0-7.0; a mixture of dispersive alumina in a ratio of 1:1 - 5.0 - 1.0 over 100 wt %, a mixture of silicon carbide fractions 10.0-17.0, the remaining part - electrocorundum of a fraction 5000-0 mcm, tempering water - 3.75-4.3 over 100%. Silicon carbide is represented in the form of a mixture, wt %: fraction less than 63 mcm - 27.5-37.0; fraction 160-125 mcm - 16.0-20.5; fraction 400-315 mcm - 47.0-52.0.

EFFECT: increase of density, thermal stability, removal of strength loss in thermocycling, porosity reduction.

2 cl, 2 tbl

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RU 2 546 692 C2

Authors

Suvorov Stanislav Alekseevich

Zastrozhnov Maksim Nikolaevich

Dates

2015-04-10Published

2013-08-15Filed