Monolithic refractories as a very important part of refractories, when the finalization of refractories can not meet the construction requirements, it is necessary to be monolithic refractories as the main construction materials. The construction of monolithic refractories is simple and efficient. They are mostly used for casting, kiln wall spraying, repairing, grouting, etc. According to the construction method and material properties, monolithic refractories can be divided into pouring material, plastic, ramming material, spraying material, dry mixing material, projection material and coating material.