Description
HI-CEM-50 (also known as H-CEM-50) is a high alumina refractory cement (calcium aluminate cement) manufactured by Horizon Refractories Private Limited in Ahmedabad, Gujarat, India. It is a conventional refractory binder with approximately 50% Al₂O₃ (alumina) content, designed for high-temperature applications where rapid setting, excellent binding properties, and resistance to thermal shock and chemical corrosion are required
Key Specifications
| Property | Value |
| Al₂O₃ Content | ≥ 70% |
| CaO Content | 25–30% |
| Initial Setting Time | 30–180 minutes |
| Final Setting Time | ≤ 6 hours |
| Compressive Strength (24 hrs) | ≥ 40 MPa |
| Max Service Temperature | 2500°C (4532°F) |
| Refractoriness | PCE ≥ 35 |
| Specific Gravity | 3.0–3.2 g/cm³ |
| Fineness (Blaine) | ≥ 3500 cm²/g |
Performance Advantages
- Ultra-Fast Setting: Achieves 70% strength in 24 hours
- Extreme Heat Resistance: Ideal for refractory linings in steel, cement, and glass industries
- Chemical Resistance: Resists sulfates, chlorides, and seawater — perfect for coastal & marine RCC
- Low Thermal Conductivity: Enhances insulation in high-temp zones
- No Hooks™ Technology: Clean, safe, and easy to handle
Applications
- Refractory cement & gunning mixes
- Furnace & boiler linings
- Chimney & incinerator repairs
- Rapid repair mortars
- Precast refractory shapes
- Marine & sulfate-attack resistant concrete
- Primary binder for manufacturing refractory castables, mortars, and monolithics
- Used in furnaces, kilns, boilers, incinerators, and foundry linings
- Steel plants (as flux or in slag control)
- Cement kilns and petrochemical industries
- Emergency repairs requiring quick setting at high temperatures
- Mixed with refractory aggregates (e.g., bauxite, fireclay) to form heat-resistant concrete
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