High Alumina Cement

High Alumina Cement

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

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Industrial Refractory

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  • sales@hy-refractory.com
  • 10th Floor, Building 6, China Central Electronic Commerce Port, Daxue Road, Erqi Dist., Zhengzhou 450000, Henan, China





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


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