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High Alumina Cement / Calcium Aluminate Cement

We make two types of calcium aluminate cement or as they are better called as high alumina cement. “Horizon Refractories” calcium aluminate cements are highly regarded in the refractory and construction industry for being consistent and accurate in quality with all chemical and physical parameters. Our high alumina cement is widely used for:

As refractory binder for making refractory monolithics like castables and mortars.
As calcium aluminate flux in steel plants for fluidizing CaO and also for diluting the overall FeO and MnO levels in the slag.
As special fast setting cement for its quick setting properties in various critical construction and marine construction applications.

We make two types of calcium aluminate cement / high alumina cements:

H-CEM-50 : it is conventional refractory cement with about 50% alumina content.

H-CEM-70 : it is high purity calcium aluminate cement with about 70% alumina content and extremely low impurities. It is used for various critical applications.

Technical Specifications:

Particulars Unit H-CEM-50 H-CEM-70
Orton Cone 14-15 31
°C 1349-1398 1683-1717
CCS of 1:3 vibrated mortor using standard graded sand After
I day curing After I day curing +1 day at 1100C Alter 3 day curing
kg/cm2 .....
Specific Surface Area cm2/gm 3400 4000
Setting Time Minutes ..... .....
Initial 30 (Min) 30 (Min)
Final 350 (Max) 400 (Max)
Chemical Analysis %
Al203 50 (Min) 72 (Min)
Fe203 3.5 {Max} 0.4 {Max}


High alumina cement has low pH
It has high refractoriness
It has high durability in sulfuric acid
It hardens rapidly
It is less reactant than alumina or hydraulic lime
It acts as a bonding material when added in refractory castables because it forms ceramic bond at high temperatures
It has high resistance to chemical corrosion. So, it is widely used also in construction of water pipes, sewage pipes, factory drains, coastal constructions and in factory chimneys.
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