Also called fireclay refractory mud or joint material. Supplementary materials for masonry of refractory products.
According to the material can be divided into clay, high alumina, and silica and magnesia refractory mud. Made of refractory powder, binder and additive. Almost all of the refractory raw materials can be used to prepare the powder used in the preparation of refractory mortar. With refractory clinker powder and appropriate plastic clay as binder and plasticizer and made called common refractory mud, low room temperature strength, high temperature formed ceramic combination has a higher strength. The combination of water hardness, gas or heat, as the binder of the binder, known as the chemical combination of refractory mud, in the formation of a certain chemical reaction and the formation of a certain chemical reaction. The granularity of fire resistance varies according to the use requirements, its ultimate size is generally less than 1mm, and some are less than 
0.5mm or more.
Selection of refractory mortar material, should be considered and the masonry of the refractory products consistent. Refractory clay addition
The coating can also be used as a protective coating for the lining of the material.
Characteristics and application of refractory clay: 1, good plasticity, easy construction, 2, bonding strength, corrosion resistance, 3, fire resistance, 50, 4, 1650, anti slag, good invasion; 5, thermal spalling. Refractory mud is mainly used in coke oven, glass furnace, blast furnace, other industrial furnace.
The industries are: metallurgy, building materials, machinery, petrochemical, glass, boilers, electric power, steel, cement, etc…
