amerabdoun@smetalgroup.com

High Alumina Cement

Product Description

1.High initial strength
2.Sulfate corrosion resistance,
3.Biological acid erosion
4.High temperature resistance,
5.Fast coagulation,etc.

 

High Alumina Cement  Introduce
 
High Alumina Cement (previously called bauxite cement) is a kind of grinding hydraulic cementing materials with clinker about 50% alumina content and has calcium aluminate as the main material, which is also called refractory cement, which can be made to low cement high alumina castable to build or repair all kinds of furnace and kilns for thermal insulation or acid erosion resistance with high strength.

Application of High Alumina Cement

High alumina cement is mainly used to configure refractory castable such as high alumina low cement castable which can build or repair furnace or kiln for heat insulation or high temperature erosion.

High Alumina Cement Technical Data

 

Product

CA-65

CA-68

CA-70

CA-75

CA-80

Chemical Composition (%)

Al2O3

64-66

67-69

69-71

73-75

77-80

CaO

32-34

29-31

27-29

23-25

18-20

SiO2

1.8

1.2

0.3

0.3

0.3

Fe2O3

0.6

0.6

0.3

0.3

0.3

 

Specific Surface (cm2/g)

4500

4500

5000

5500

7000

Setting time (h:min)

Initial setting (min)

0:40

0:40

0:40

0:45

0:45

Final Setting (min)

8:00

8:00

10:00

10:00

10:00

 

Cold Modulus of Rupture (MPa)

24 hour

6.0min

6.0min

6.0min

6.0min

5.0min

72 hour

8.0min

8.0min

8.0min

8.0min

6.0min

Cold Crushing Strength (Mpa)

24hour

45.0min

45.0min

45.0min

45.0min

35.0min

72hour

70.0min

70.0min

70.0min

70.0min

60.0min

 

Refractoriness (°C)

1680

1710

1730

1750

1770