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Change of performance index of low cement refractory castable at different temperatures[11/02/2018]
The main raw materials for low cement refractory castable are alumina, silica micropowder and calcium aluminate cement. The performance of low cement refractory castable varies at different temperatures.
1. The bulk density of low-cement refractory castable increases with temperature, indicating a decrease in bulk density and stops, and then increases.
2. The line change rate of low cement refractory castable increases with the increase of temperature and decreases, and then increases.
3. The cold modulus of rupture and cold crushing strength of low cement castable increase first, then decrease and then increase with the increase of temperature.
4. After the low cement refractory castable has a heat treatment temperature of 1500 °C, the wear amount is less than the wear amount at 1300 °C.
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