What is Refractory Castable
High alumina castables are high alumina aggregates, high alumina refractory powders (selected high temperature calcined high alumina bauxite). The common products used as refractory cements, high alumina bricks are alumina content in clay bricks and corundum refractory brick.
What is High Alumina Brick?
High alumina bricks are refractory bricks with alumina content between clay bricks and corundum bricks, but different from mullite refractory bricks with higher alumina content, mainly different crystal phases.
High Alumina Castables Compared to High Alumina Bricks?
High Alumina Brick Advantage.
1. High alumina castables are practical, economical and environmentally friendly. Unlike high alumina bricks, this product does not need to be sintered. It has a short cycle from production to construction. It can be applied through specified process operations, then cured, demoulded, and ovend. Can be used afterwards.
2. the use of high alumina castables overall casting advantages are obvious, the masonry has no through-slots, can also be made into prefabricated parts, modular docking use, construction will be more convenient.
High Alumina Brick Disadvantages.
1. Since the high castable is a mixed bulk product, it is composed of a variety of raw materials. It should be protected from moisture and sun. It can not be mixed with other grades or stored for too long. The normal shelf life is 6 months. It is recommended to leave 6 after delivery. Used within the month.
2. Since this product may not be ideal due to construction problems, it is more stringent for adding water and construction procedures and ovens, which is also a disadvantage of high alumina castables.
