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Refractory low-cement corundum concrete - BK

Refractory low-cement corundum concrete based on normal aloxite (BK160/EB) or fine aloxite (BK16-/EA/N)

Symbol Granularity
[mm]
Aggregate Max. working
temp.[oC]
Min. common
refractoriness sP
Min. Al2O3
content [%]
Concrete consumption [t/m3] Make-up water amount [l/100kg]

BK160/EB/N

0-3 / 0-5 elektrokorund zwykły 1600 >177 87 3,1 3

BK160/EA/N

0-3 / 0-5 elektrokorund szlachetny 1700 >177 91 3,1 5

Technical parameters after drying and baking

Symbol after drying in 110 °C after baking in working temperature
Effective porosity
[%]
Apparent density
[g/cm3]
Shear strength
[MPa]
Effective porosity
[%]
Apparent density
[g/cm3]
Shear strength
[MPa]
Contraction (-) [%]

BK160/EB/N

16 3 30 15 3 65 -3

BK160/EA/N

17 2,95 45 18 3 65 -0,4

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Refractory and insulating materials • Refractory ceramic products • Refractory concretes • Refractory concrete prefabricates