High-Temperature Refractory Mortar

Refractory mortar is also called mortar or seal jet, which can resist high-temperature environments and is adopted as castable refractory to build and repair all kinds of furnaces and kilns. Fire clay mortar is made of refractory powder, binding agent, and admixture, which can be made into a powder that is used to mix castable refractory mortar. and fireclay mortar also can balance the expansion between firebricks. Thus, only high-quality fireclay mortar can prolong the service life of furnaces and kilns.

Technical parameter of high-temperature refractory mortar

Description		RS-1300	RS-1400	RS-1500	RS-1600
Classification temperature(℃)		1300	1400	1500	1600
Loading softening temperature(℃)		1320	1410	1550	1600
State		Paste	Paste	Paste	Paste
Chemical composition(%)	AI₂O₃	40	53	60	78
Chemical composition(%)	Fe₂O₃	1.2	1.0	0.9	0.7
Matching firebrick		B1,B2,B5,NT-23	B6,C2,NT-26	NT-28,NT-30	NT-32

Characteristics of high-temperature resistant mortar

High-temperature stability: High-temperature mortar can maintain the stability of its physical and chemical properties at extremely high temperatures without softening, melting, or deformation.
Good bonding: High-temperature mortar has excellent bonding properties and can be firmly bonded with various refractory materials to form a tight refractory structure.
Good impermeability: High-temperature mortar can effectively prevent the penetration of moisture, gas, and other harmful substances, ensuring the integrity and durability of the refractory structure.
Good wear resistance: In a high-temperature environment, a high-temperature mortar can resist the scouring and wear of particles and maintain the integrity and stability of its structure.

High-temperature refractory mortar application

High-temperature resistant mortar is mainly used in various high-temperature industrial equipment and structures, such as blast furnaces, hot blast furnaces, electric furnaces, flues, boilers, etc. In this equipment, high-temperature resistant mortar is used as a binder for refractory materials such as refractory bricks and refractory castables, which tightly bond various refractory materials together to form a complete refractory structure. In addition, high temperature-resistant mortar can also be used to repair and reinforce refractory structures to improve the service life and safety of equipment.

How to construct refractory mortar?

Refractory mortar is composed of refractory aggregates, binders, and admixtures, and is the joint material for molded products. Depending on the delivery status, there are two types: dry and wet. During construction, add the modulating fluid (water or other liquid) to the specified consistency, and use a spatula or special machinery (such as pressure grouting machinery) to build or grout.