Calcium Aluminate Cement is a high-performance hydraulic binder made from high-purity alumina and calcium oxide. It features fast setting, high early strength, and excellent resistance to high temperatures and chemical corrosion, making it ideal for refractory materials and industrial applications.
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Calcium Aluminate Cement (CAC), also known as High Alumina Cement, is a specialized hydraulic cement with alumina content typically ranging from 40% to 80%. It develops rapid early strength and maintains excellent mechanical performance even at elevated temperatures.
Unlike Portland cement, CAC provides superior resistance to high temperatures, sulfates, acids, and slags, making it an essential component in refractory castables, mortars, and monolithic materials.
Its controlled setting time, combined with outstanding bonding strength and durability, allows versatile use in on-site construction, furnace maintenance, industrial flooring, and environments requiring high chemical stability.
Calcium Aluminate Cement is widely used in industries such as steelmaking, cement, petrochemicals, non-ferrous metallurgy, environmental equipment, and thermal power generation.
| Type | CA70 | CA80 | |
| Chemical content (%) | SiO2 | ≤1.0 | ≤0.5 |
| Al2O3 | ≥68.0 | ≥77.0 | |
| Fe2O3 | ≤0.7 | ≤0.5 | |
| R2O | ≤0.4 | ≤0.4 | |
| S | ≤0.1 | ≤0.1 | |
| Cl | ≤0.1 | ≤0.1 | |
| 325M screen residue (%) | ≤5 | ≤5 | |
| S (m2/kg) | ≥400 | ≥450 | |
| Initial setting time (min) | ≥45 | ≥45 | |
| Final setting time (h) | ≤6 | ≤6 | |
| Bending Strength (MPa) | 6h | —— | —— |
| 1d | ≥5.5 | ≥5.0 | |
| 3d | ≥6.5 | ≥6.0 | |
| Compressive strength (MPa) | 6h | —— | —— |
| 1d | ≥40 | ≥30 | |
| 3d | ≥50 | ≥40 | |
Calcium Aluminate Cement is commonly used for:
Refractory castables, mortars, gunning mixes, and ramming materials
Steel industry: ladles, tundish repair, blast furnace maintenance
Cement industry: rotary kiln linings, preheater repairs
Non-ferrous metallurgy: aluminum melting furnaces, copper furnaces
Petrochemical furnaces and incinerators
Industrial floors and corrosion-resistant construction
Environmental equipment such as desulfurization systems
High-temperature bonding and monolithic refractory production
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