Why is High Alumina Castable Have High Strength
1. High alumina high strength have the low content of calcium oxide, reduces the generation of low melts in refractory material, thereby improving the refractoriness, high temperature strength and slag resistance of the refractory product.
2. The amount of water used for refractory castable is only about one half of that of the ordinary castable, thereby increasing the compactness of the castable and reducing the porosity.
3. After molding and curing, the generated refractory cement hydrate is small. When heating and baking, there is no large amount of water leakage, and the medium temperature strength is lowered. However, as the temperature increases, refractory material gradually sinters and the strength is continuously improved.
4.High alumina high strength castable has the least wear loss, high strength, arbitrary shape control, strong integrity, simple construction and good construction performance. Due to the addition of high molecular polymer, the base concrete is firmly bonded.
High Alumina High Strength Castable Feature
1. High alumina high strength castable have high strength, good high temperature performance, stable volume, small thermal conductivity, strong resistance to slag penetration, erosion resistance, convenient construction, strong furnace structure and other characteristics.
2. High alumina high strength castables have high strength, impact resistance, mechanical wear resistance and high temperature high speed airflow.
High Alumina High Strength Castable Specification
| Brand |
High alumina high strength castable |
| Alo3 % |
1600 |
| Sio2 % |
（110℃*24h）<25 |
| Reburning Linear Change |
-0.3~+0.3 |
| Bulk Density (g/cm3) |
>2.55 |
| Cold Crush Strength(Mpa) |
（110℃*24h）>80/(1100℃*3h）>100 |
| Flexural Strength(Mpa) |
(110℃*24h）>10/(1100℃*3h）>10 |
| Thermal Conductivity |
350℃ |
1.5 |
| 1000℃ |
1.0 |
High Alumina High Strength Castable Application
High alumina high strength castable have widely used in metallurgy, building materials, petrochemical, electric power and other industries gas suspension cultivating furnace, refining catalytic cracking unit, cyclone separator, fluidized bed boiler and high speed airflow scouring pipeline containing medium.
Where Buy High Alumina High Strength Castable
Rongsheng refractory factory profession produce refractory material 20 year, main products: fire brick, refractory castable,refractory cement, Lightweight brick, Ceramic fiber ,Graphite electrode.
