High-aluminum gunning mix

NGB 155 high-aluminum refractory mix

Granularity [mm]	Aggregate type	Max. working temp.[^oC]	Min. common refractoriness sP	Min. Al₂O₃ content [%]	Mass consumption [t/m3]	Make-up water amount [l/kg]
0-5	bauxite	1550	177	79	2,55	11

Technical properties after drying in 110 °C :
Effective porosity - max.19%
Apparent density - 2,48 g/cm3
Shear strength min. 25MPa

Technical properties after baking in 1500 °C :
Effective porosity - max.23%
Apparent density - 2,47 g/cm3
Shear strength min. 20MPa
Contraction - max.(-1,5%)

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