Lightweight Refractory Castable
Lightweight Refractory Castable Description
Lightweight refractory castable is made from lightweight refractory aggregate and powder, binder and additives. Lightweight castable has low bulk density and thermal conductivity, so it is also called insulating refractory castable. By bulk density, lightweight castable can be divided into semi lightweight castable(1.0~1.8g/cm3), lightweight castable(0.4~1.0g/cm3) and ultra lightweight castable(less than 0.4g/cm3). By max working temperature, lightweight castable can be divided into low temperature lightweight castable (working temperature between 600~900℃), middle temperature lightweight castable (working temperature between 900~1200℃) and high temperature lightweight refractory castable ( working temperature higher than 1200℃).
Lightweight Cenosphere Castable Index
Bulk density g/cm3
Compression strength Mpa (1000℃)
Linear change rate % (1000℃)
Thermal conductivity (350℃) W/(m.K)