Refractory materials by certain particle size distribution of refractory aggregate and powder, binder, additive mixed, also called bulk refractories. For thermal equipment lining, without burning process, the use of direct baking. Compared with therefractory brick, has the advantages of simple process (omitted due to burning process), energy characteristics, low cost, convenient mechanized construction etc.. In some thermal equipment use effect than brick well.

Method for producing unshaped refractory material. A ramming molding, vibratory compaction and spraying forming. When the fireclay brick masonry or overall structure local damage, the replacement of materials or available by spray, projection equipment for cold, hot state of repair, a quick and economical. Also according to the material characteristics, as each part of the kiln lining and masonry protection layer and the joint material.