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Re-engineered Calcium Aluminate Cement for Refractory Castables

A medium CAC with low C12A7 content and a high specific surface area leads to improved flow and higher strength after firing a regular cement castable with fireclay. A higher specific surface of the CAC enhances sintering of the calcium aluminates with the fireclay aggregates. Improved refractory castable properties of the fine ground CAC can be attributed to a higher crystalline phase content and increased hibonite formation at high temperatures.


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