Calcium Aluminate Cement

Calcium Aluminate Cement

High temperature resistance;
High early strength;
Rapid and complete wet hydration;
Stable physical performances;
Low water requirement;
Excellent biological acid erosion;
Acts as a bonding material in refractory castables;
Large hydration heat.


Calcium aluminate cement is a cement containing calcium monoaluminate (CaO·Al 2 O 3 ) or calcium aluminate (CaO·2Al 2 O 3 ) as the main mineral component. It is made of natural bauxite or industrial alumina and calcium carbonate (limestone) in a certain proportion, calcined or electrofused, and also made by mixing iron bauxite and limestone. Calcium aluminate cements are cements consisting predominantly of hydraulic calcium aluminates. Alternative names are “aluminous cement”, “high-alumina cement” and “Ciment fondu” in French. They are used in a number of small-scale, specialized applications.

  Technical Data:

Calcium Aluminate Cement
  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


Calcium aluminate cement is mainly used in coke ovens, glass kilns, blast furnace hot blast furnaces, and other industrial kilns.Applied industries: metallurgy, building materials, machinery, petrochemical, glass, boilers, electricity, steel, cement, and so on.

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