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 | 50% ± 2% |
| CaO Content | 35–40% |
| Initial Setting Time | 60–180 minutes |
| Final Setting Time | ≤ 5 hours |
| Compressive Strength (24 hrs) | ≥ 35 MPa |
| Max Service Temperature | 1400°C (3272°F) |
| Refractoriness (PCE) | ≥ 32 |
| Specific Gravity | 2.9–3.1 g/cm³ |
| Fineness (Blaine) | ≥ 3200 cm²/g |
Performance Advantages
- Rapid Strength Gain: 70% strength in 24 hours — ideal for emergency repairs
- Thermal Stability: Perfect for kiln patching, boiler linings, and foundry molds
- Chemical Durability: Resists sulfates, chlorides, and seawater — certified for coastal & marine RCC
- User-Friendly: No Hooks™ design ensures safe handling & clean pouring
- Cost-Effective: 30% lower cost than 70% alumina grades, same Japanese precision
Applications
- Rapid runway & highway repairs
- Precast refractory bricks and blocks
- Sulfate-resistant foundations (piers, canals, dams)
- Medium-temperature furnace linings (≤ 1400°C)
- Gunning mixes and patching compounds
- Marine & offshore concrete structures
- 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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