In the mid-1980s, China developed a new generation of refractory castables, including low-cement, ultra-low-cement, and cement-free refractory castables, primarily categorized by porosity, binder, and aggregate type.
Primary types of refractory castable materials include silicate cement, common alumino-silicate cement, pure alumino-silicate cement, and electric fused pure alumino-silicate cement castables. Refractory castables chemically bond and harden at room temperature typically through a chemical reaction induced by the addition of accelerators, with primary types including water glass, aluminum sulfate, and phosphate castables. These are used in areas exposed to iron, steel, and slag corrosion with high operating temperatures.
Refractory castable resources are selected for their homogenization, material properties, and special aggregates to enhance the fundamental composition. They typically exhibit high room temperature strength and can be manufactured into prefabricates for on-site installation in furnace kiln workshops. Refractory castables include fiber-reinforced refractory castables and self-flowing refractory castables, which utilize various additives to improve the performance of the refractory castables. The production and use of refractory castables are supported by完善 production equipment and construction accessories.





