CA80
CA80 is an ultra-high purity calcium aluminate cement engineered for the most demanding refractory applications, boasting an exceptionally high alumina content. Dominated by monocalcium aluminate (CaO·Al₂O₃, or CA) and dicalcium aluminate (CaO·2Al₂O₃, or CA₂), it offers unparalleled mechanical strength, thermal stability, and resistance to extreme conditions. Produced through a highly controlled rotary kiln sintering process using premium bauxite and limestone, CA80 is the ultimate choice for advanced refractory systems requiring maximum refractoriness and durability. Its refined composition ensures top-tier performance in critical high-temperature environments.
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CA80
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Consult NowCA80 – Ultra-High Purity Calcium Aluminate Cement
CA80 is an ultra-high purity calcium aluminate cement engineered for the most demanding refractory applications, boasting an exceptionally high alumina content. Dominated by monocalcium aluminate (CaO·Al₂O₃, or CA) and dicalcium aluminate (CaO·2Al₂O₃, or CA₂), it offers unparalleled mechanical strength, thermal stability, and resistance to extreme conditions. Produced through a highly controlled rotary kiln sintering process using premium bauxite and limestone, CA80 is the ultimate choice for advanced refractory systems requiring maximum refractoriness and durability. Its refined composition ensures top-tier performance in critical high-temperature environments.
Key Features
● Ultra-high alumina content for superior refractoriness
● High concentration of calcium aluminates for exceptional strength
● Outstanding thermal stability and chemical resistance
● Excellent flow properties for precise casting and gunning
● Minimal impurities for enhanced performance
Benefits
● Delivers unmatched durability in aggressive thermal and corrosive settings
● Facilitates rapid installation with fast hardening and early strength
● Supports complex refractory designs with versatile application properties
Technical Highlights
CA80 is manufactured via a meticulous sintering process in a rotary kiln, yielding a clinker rich in CA and CA₂ phases with negligible impurities. Its ultra-high purity enhances resistance to slag attack and thermal shock, making it ideal for temperatures exceeding typical refractory limits. Aligned with industry standards for premium calcium aluminate cements, CA80 excels in ultra-low cement and no-cement castables, providing a robust foundation for cutting-edge refractory solutions.
Usage Recommendations
Store in a dry, moisture-free environment to maintain its hydraulic properties. Mix with high-purity refractory aggregates (e.g., white fused alumina or tabular alumina) and apply via casting or gunning techniques for optimal outcomes. Suitable for most refractory environments, though caution is advised in reducing atmospheres due to trace impurities.
| CA80 | ||
| Refractoriness(℃) | 1750-1800 | |
| Chemical Composition(%) | ||
| Al2O3(%) | 78.0-80.0 | |
| CaO(%) | 18.5-20.5 | |
| SiO2(%) | 0.1-0.4 | |
| Fe2O3(%) | 0.1-0.4 | |
| Fineness | ||
| Specific Surface of Cement-Bline Method(m2/kg) |
450-500 | |
| Setting Time(min) | ||
| Initial Setting Time(min) | 150-210 | |
| Final Setting Time(min) | 210-270 | |
| Flexural Strength (MPa) | ||
| 24h Flexural(MPa) | 6.0-8.0 | |
| 72h Flexural(MPa) | 7.0-9.0 | |
| Compressive Strength(MPa) | ||
| 24h Compressive(MPa) | 40-50 | |
| 72h Compressive(MPa) | 50-60 | |
| Additional Information | ||
| Principal phase | CA，CA2，Aα | |
| Secondary phase | C12A7 | |
| Other Physical Characteristics | ||
| Bulk density | 800-900kg/m3 | |
| Specific gravity | 3.1-3.2g/cm3 | |
Applications
● Ultra-low cement castables for blast furnace linings and petrochemical reactors
● High-purity refractory linings in glass furnaces and ceramic kilns
● Specialized refractory shapes and gunning mixes for extreme heat zones
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