The deployment and construction of refractory mud directly affect the life of refractory masonry, if the adhesion is not strong, or the powder is too coarse, it will also affect the use of refractory bricks. In the construction, the mud bonding refractory brick block, the water amount must be controlled, the water amount is too large, the mud is easy to flow from the brick joint; Add too little water, mud dry, can not stick to the bricks.

Refractory mud is subjected to the same load and high temperature as refractory brick, especially in refractory brick masonry in large kilns. The load softening temperature is one of the indexes of the high temperature performance of the refractory mud, which can reflect the actual performance of the refractory mud, and can also directly judge the temperature range of the high temperature volume shrinkage of the refractory mud under the load. At the same time, refractory mud is an important bonding joint material in the process of refractory brick masonry, its role is even more important than refractory brick, if the quality of refractory mud is not up to standard, it will seriously affect the service life of refractory brick. In other words, the importance of refractory clay is higher than that of refractory brick.