For the castables prepared with the simultaneous addition of air-entraining agents and alumina bubbles, the CMOR of samples after heat treatment at 1000 °C and 1300 °C showed a trend of initial decrease, followed by an increase ( Figure 6 d).
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Optimization of Properties of Calcium Hexaluminate-Based Insulating Castables with Calcium Aluminate Cement.
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The sentences
The apparent porosity of castables with only added AEA and alumina bubbles after being dried at 110 °C and treated at 1300 °C presented a decreasing trend as CAC content increased.