Refractory Mortar/Refractory Mud
It is composed of refractory powder, binder and admixture. Almost all refractory raw materials can be made into powder used to prepare refractory mud. The ordinary refractory clay made of refractory clinker powder and an appropriate amount of plastic clay as a binder and plasticizer is called ordinary refractory clay, which has lower strength at room temperature, and higher strength is formed by ceramic bonding at high temperatures. The chemically bonded refractory clay, which uses hydraulic, air-hardened or thermosetting bonding materials as the bonding agent, undergoes a certain chemical reaction and hardens before it is lower than the ceramic bonding temperature.
The particle size of refractory mud varies according to the requirements of use, and its limit particle size is generally less than 1mm, and some are less than 0.5mm or finer.
The choice of refractory mud material should be considered consistent with the material of the refractory products of the masonry. In addition to being used as a jointing material, refractory mud can also be used as a protective coating for the lining by painting or spraying.