Technical requirements for construction of refractory castables Technical requirements for construction of refractory castables 1. Clean water shall be used for mixing refractory castables . 2. The formwork used for pouring shall have sufficient rigidity and strength, the size of formwork shall be accurate, and deformation shall be prevented during construction. The formwork joint shall be tight without mortar leakage. Anti-adhesion measures shall be taken for formwork. Waterproof measures shall be taken for the surface of thermal insulation masonry in contact with castables. 3. The castables shall be mixed with a forced mixer. The mixing time and liquid addition shall be in accordance with the construction instructions. When changing the material brand, the mixer, hopper, weighing container, etc. shall be washed clean. 4. The mixed refractory castables shall be poured within 30min or within the specified time according to the construction instructions. The initially set castables...
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