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High alumina refractory castable
Type High alumina
Material High alumina
refractory castable
High alumina high strength
refractory castable
High alumina high strength
low cement refractory castable
Max working temp.(℃) 1400 1500 1600
Bulk density after drying at 110℃, g/cm3 2.5 2.6 2.65
Chemical analysis, % Al2O3≥ 65 75 78
SiO2≤ 25 20 15
Cold bending strength (Mpa) 110℃*24H 8 8 10
1100℃*3H 8 8 10
1500℃*3H / /
Cold crushing strength
(Mpa)
110℃*24H 70 80 100
1100℃*3H 70 80 100
1500℃*3H / / /
Linear change after heating, % 1100℃*3H ±0.40 ±0.30 ±0.30
1500℃*3H / / /
Water Addition 5.5-7% 6-7% 6-7%
Construction method Vibration Vibration Vibration
Application cement kiln cooler rear part, other industrial kiln linings cement kiln door, kilnhood, cooler and other high temp zones, and other industrial furnace linings
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