The difference between lightweight castables and heavy castables

Refractory castable is a kind of refractory material that does not need to be formed and has good fluidity after being fired, and mixed with water. Its structure is made of aggregate, powder, and adhesive according to the process proportion. It can replace products with complex shapes, high degree of special shapes, wide areas, and other special shapes. It has the advantages of convenient construction, shortened construction period,d and reduced labor intensity.

The difference between lightweight castables and heavy castables

The bulk density of the two castables is different

Lightweight castables have a small bulk density, while heavyweight castables have a large bulk density.

The functions of the two castables are different

Lightweight castables are mainly used for high-temperature resistance and heat insulation. They are often used for pouring insulation layers of high-temperature kilns and boilers and generally do not come into direct contact with flames.
Heavyweight castables are high temperature resistant and high strength. They are formulated according to the use environment and have the functions of wear resistance and flame erosion resistance. They generally come into direct contact with flames.

Lightweight castables and heavy castables have different functions

Lightweight refractory castable is a hydraulic castable, suitable for various kiln lining insulation layers, float glass kiln flue sealing castables, with low thermal conductivity, good thermal insulation performance, small linear shrinkage, good casting integrity, good drying strength, and other characteristics.

Heavy refractory castables are mainly used as lining and sealing materials for thermal equipment of industrial kilns. According to the performance of the binder, they are divided into clay, high aluminum, and inorganic refractory castables. They achieve their own performance characteristics under hydraulic hardness and high-temperature conditions. Refractory castables have high acid resistance, corrosion resistance, Thermoschockbeständigkeit, wear resistance, and peeling resistance. They are suitable for small and medium-sized blast furnace hearths in cement kilns, industrial frequency induction furnace melting tanks, soaking furnace desulfurization hoods, blast furnace duct rotary kilns, and various flues, acids, Panzer, and other parts. Application range: industrial kiln wall lining or high-temperature industrial kiln back lining insulation layer, electric heating furnace door, double inspection hole, burner brick non-ferrous, ferrous metal melting groove, tank.