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Low Cement High Alumina Castable
From the name, the Low Cement High Alumina Castable has some remarkable characteristics, such as high aluminum content and low refractory cement content. Therefore, this refractory castable has high strength, resistance to erosion, wear resistance, and excellent performance.
Low Cement High Alumina Castable was developed on the basis of clay combined refractory castable. Its main varieties are refractory castables such as low cement, ultra low cement, and no cement. It combines the advantages of most refractory castables, and has the characteristics of high density, low porosity, high strength, low wear, thermal shock resistance and corrosion resistance. The use effect is better and the social and economic benefits are significant.
The outstanding feature of Low Cement High Alumina Castable is their compactness and high strength, when using it brings benefits to the user. But the corn has two sides, the baking will be the trouble. That is, when not proper baking, it is easy to peel or explode. Therefore, for the baking of Low Cement High Alumina Castables, a reasonable drying-oven line must be formulated and excellent explosion-proof admixtures must be used. So that the water in the castable molding body can be smoothly eliminated without causing any side effects.
RS Low Cement High Alumina Castable Physical and Chemical Indexes
Items
RS-16T
RS-16
RS-160(LC-160)
RS-15B(GJ-15B)
Chemical Composition (%) ≥
Al2O3
75
70
75
70
Bulk Density (kg/cm3) ≥
110℃ * 24h
2650
2600
2700
2600
Cold Crushing Strength (MPa) ≥
110℃ * 24h
100
100
100
80
1100℃ * 3h
110
100
110
100
1500℃ * 3h
110
–
150
–
Cold Modules of Rupture (MPa) ≥
110℃ * 24h
10
8
14
10
1100℃ * 3h
12
10
15
12
1500℃ * 3h
12
–
15
–
Permanent Linear Change (%)
1100℃ * 3h
±0.3
±0.4
±0.4
±0.4
1300℃ * 3h
±0.5(1500℃)
±0.5
±0.5(1500℃)
±0.5
Alkali Resistance
–
Grade II
–
Grade II
Max Service Temp (℃)
1600
1600
1600
1500
Water Addition (%)
5.5-6.5
6.0-7.5
5.5-6.0
5.5-6.5
Application of Low Cement High Alumina Castable
Low Cement High Alumina Castable is used in industrial furnaces such as metallurgy, petroleum and petrochemicals, electric power, and building materials. A large part replaced the refractory bricks. The specific application parts on the cement kiln are as follows:
RS-16T, RS-16 and RS-15B (GJ-15B) can be used at the KIln Hood, Cooler, etc.
RS-160 (LC-160) are often used in Outlet, Burner Kiln, Hood Cooler, Etc.
In the application of Low Cement High Alumina Castable, especially in construction, the amount of water added must be controlled. Generally, when the castable leaves the factory, the manufacturer will attach the construction instructions for the Low Cement High Alumina Castable. Please strictly follow the construction instructions, so that the castable can exert its unique advantages.
The manufacturers of Low Cement High Alumina Castables point out that whether it is production or application, it is necessary to carry out different proportions of alumina castables according to the actual use conditions (such as temperature, erosion, erosion) in order to meet the needs of the construction of refractory lining .
As a manufacturer of low-cement castables, RS always insists that according to different furnace types, different operating temperatures, and different operating environments, the proportion of castables for the refractory lining of customers is formulated. Of course, the price of Low Cement High Alumina Castable varies with different grades and body densities. If you have a demand for high alumina low cement refractory castables, please contact us. We will reply to you as soon as possible.
