Refractory castable belongs to stereotypes. It is a mixture of powdered material composed of a variety of aggregate particles or aggregates and one or more adhesive agents. It must be stirred with one or more kind of liquid when someone uses, and has strong liquidity and plasticity.
Refractory Castable Types:
It is mainly divided according to porosity, binders and assortment of aggregate.
According to porosity, it is divided into dense refractory castable and fire-resistant insulation refractory castable which has porosity of less than 45%.
According to binders, it is divided into hydrsulic bonding , chemical bonding, cohesion binding refractory castable.
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| Refractory castable |
According to refractory aggregate, it is divided into clay aggregate (Al2O3 30% ~ 45%), high alumina aggregate (Al2O3% 26ge; 45%), siliceous aggregates (SiO2% 26ge; 85%, Al2O3% 26lt; 10 %), alkaline aggregate (with magnesia, dolomite, etc.), special aggregate (carbon, carbides, spinel, zircon, nitrides, etc.) and insulation aggregate (perlite, vermiculite stone, ceramic, floating beads, light brick sand, porous clinker, alumina hollow ball,etc).
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