Refractory Cement CA50 is a premium high-alumina cement, designed to deliver outstanding performance in high-temperature applications. With a carefully controlled alumina content of 50%, this hydraulic binder is perfect for use in industrial furnaces, steel plants, and foundries, where durability, rapid setting, and resistance to high thermal stresses are crucial.
Manufactured using high-quality calcium aluminate and sintered in a rotary kiln, Xintai CA50 ensures a rapid hardening process and excellent mechanical properties. It is highly recommended for situations that require strong early strength development, especially in high-stress environments exposed to extreme temperatures.
CA50 provides exceptional resistance to corrosion and abrasion, making it ideal for industries dealing with molten metal, slags, or other aggressive materials. Whether used for casting, gunning, or troweling, it’s well-suited for a wide range of refractory applications.
Technical Specifications
| Property | Metric Value | Imperial Value |
|---|---|---|
| Classification Temperature | 1600°C | 2912°F |
| Maximum Service Temperature | 1400°C – 1500°C | 2552°F – 2732°F |
| Bulk Density (After Drying) | 2.40 – 2.50 g/cm³ | 150 – 155 lb/ft³ |
| Cold Crushing Strength (CCS) | ≥ 40 MPa | ≥ 5800 psi |
| Compressive Strength (3 Days) | ≥ 50 MPa | ≥ 7250 psi |
| Flexural Strength (3 Days) | ≥ 6.5 MPa | ≥ 945 psi |
| Al₂O₃ Content | 50% – 54% | 50% – 54% |
| Fe₂O₃ Content | ≤ 3.0% | ≤ 3.0% |
| Initial Setting Time | 50 – 120 min | 50 – 120 min |
| Final Setting Time | 90 – 180 min | 90 – 180 min |
Key Features of Refractory Cement CA50
- High Temperature Resistance: Capable of withstanding temperatures up to 1600°C (2912°F) with excellent stability, ideal for use in steel and glass manufacturing.
- Rapid Hardening: Quick setting time for faster installation and reduced downtime in industrial operations.
- Corrosion Resistance: Exceptional protection against chemical and slag corrosion, offering extended service life in harsh environments.
- Strong Mechanical Performance: Provides superior strength with impressive compressive and flexural strength, ensuring long-lasting structural integrity.
- Versatile Application: Perfect for casting, gunning, troweling, and extruding, allowing flexible use across various high-temperature industries.
Typical Applications
- Steel Industry: Perfect for ladle linings, furnace roofs, and tundish covers where high mechanical and thermal stability is required to resist molten metal and slag.
- Foundries: Ideal for use in casting furnaces, where thermal shock resistance and durability are key to maintaining operational efficiency.
- Glass Manufacturing: Ensures clean and efficient melting in glass furnaces, preventing contamination of the melt.
- Petrochemical & Refining: Suitable for use in reformers and catalytic crackers in refining industries, where resistance to reducing atmospheres and chemical exposure is vital.
- High-Temperature Furnaces: Effective in industrial furnaces that are subject to extreme conditions, providing reliable protection from thermal and mechanical stress.
Production Details
Raw Materials:
- Calcium Aluminate: The key binder for enhanced rapid hardening and strength development.
- High-Alumina Content (Al₂O₃): Provides superior strength and thermal stability at elevated temperatures.
- Low Iron Oxide (Fe₂O₃) Content: Ensures excellent performance in environments with reducing atmospheres.
Manufacturing Process:
- Sintering Process in Rotary Kiln: Ensures precise control over the aggregate size, binder content, and particle distribution, leading to a high-performance final product.
- Advanced Hydraulic Binders: Use of advanced hydraulic binders ensures excellent “green strength,” allowing for quick installation and handling.
Quality Control:
- Rigorous testing procedures ensure that the product meets all physical and chemical specifications for optimal performance.
- Quality tests include compressive strength, flexural strength, thermal shock resistance, and chemical composition analysis.
Packing and Shipping Details
- Standard Packing: 25 kg moisture-proof bags to maintain product integrity during storage and transportation.
- Bulk Packing: Supersacks (1-ton capacity) for larger orders, ideal for bulk applications.
- Shipping Methods: Available for sea, truck, or rail shipping, with global logistics hubs in Asia, Europe, and North America for quick delivery.
- Delivery Form: Supplied in dry powder form, requiring only water to be mixed on-site for installation.
Frequently Asked Questions (FAQ)
Q1: What is the recommended water requirement for mixing CA50?
The recommended water requirement is 7% – 9% by weight.
Q2: Can CA50 be used in applications with reducing atmospheres?
Yes, CA50 has low iron content and performs well in reducing atmospheres.
Q3. How fast does CA50 harden?
CA50 is designed to have a rapid setting time, ensuring fast installation and early strength development.
Q4:What is the maximum service temperature for CA50?
CA50 is suitable for service temperatures up to 1500°C – 1600°C (2822°F – 2912°F).
Q5: What applications is CA50 most suitable for?
CA50 is ideal for use in high-temperature industrial environments such as steel, glass, and petrochemical manufacturing, where rapid hardening and high mechanical strength are required.
