What condition must be fulfilled before larger dimensions can be cut from refractories?

For larger dimensions to be cut from refractories, it is essential that they have been cured for a minimum of 24 hours. Curing allows refractories to achieve their desired mechanical strength and properties. During this period, chemical reactions occur within the material, which help it gain stability and ensure that it can withstand the stress of being shaped and cut.

If the refractory material is not adequately cured, attempting to cut it into larger dimensions could compromise its structural integrity, leading to cracks or other failures. Therefore, ensuring proper curing is a critical step in preparing the refractories for further processing and use. This practice also aligns with best practices in refractory management, which emphasize the importance of allowing materials to develop their full potential before manipulation.