CA Series High Alumina Refractory Cement – High-Strength Calcium Aluminate Binder for Castable and Urgent Repair
Price:
300usd - 800usd
MOQ:
1 ton
Delivery Time:
7 days
Brand:
JINGHUA
Product Description
CA Series High Alumina Refractory Cement – High-Strength Calcium Aluminate Binder for Castable and Urgent Repair
Technical Specifications
| Item | CA-50 | CA-60 | CA-70 | CA-80 |
|---|---|---|---|---|
| Chemical component Al₂O₃ /% | 50-60 | 60-68 | 68-77 | ≥77 |
| Chemical component SiO₂ /% | ≤8.0 | ≤5.0 | ≤1.0 | ≤0.5 |
| Chemical component Fe₂O₃ /% | ≤2.5 | ≤2.0 | ≤0.7 | 0.5 |
| Chemical component R₂O (Na₂O+0.658K₂O) /% | ≤0.4 | ≤0.4 | ≤0.4 | ≤0.4 |
| Rupture strength MPa 1day | 5.5 | 2.5 | 5.0 | 4.0 |
| Rupture strength MPa 3days | 6.5 | 5.0 | 6.0 | 5.0 |
| Rupture strength MPa 28days | / | 10.0 | / | / |
| Compressive strength MPa 1day | 40 | 20 | 30 | 25 |
| Compressive strength MPa 3days | 50 | 45 | 40 | 30 |
| Compressive strength MPa 28days | / | 80 | / | / |
| Setting time Min Initial time | ≥30 | ≥60 | ≥30 | ≥30 |
| Setting time Min Final time | ≤360 | ≤1080 | ≤360 | ≤360 |
Why Choose Our Products?
- Rapid Hardening and High Early Strength - Achieves high compressive and rupture strength within 1 to 3 days, significantly accelerating project timelines and enabling urgent repair completion with minimal downtime.
- Exceptional High-Temperature Performance - Refractoriness exceeds 1650°C, with a maximum service temperature reaching 1800°C, suitable for various atmospheric conditions in demanding industrial furnaces and kilns.
- Superior Bonding and Structural Integrity - Forms a strong, integral bond with furnace linings and refractory aggregates, ensuring monolithic structural integrity and eliminating weak points in the lining system.
- Excellent Durability and Resistance - Exhibits good resistance to chemical corrosion, high wear resistance, and high thermal shock stability, extending the service life of refractory linings in harsh environments.
Primary Applications
- Metallurgy and Heat Treatment - Linings for various industrial furnaces, ladles, tundishes, and soaking pits in steelmaking and non-ferrous metal processing.
- Power Generation and Environmental Protection - Circulating fluidized bed (CFB) boilers, waste incineration furnaces, and biomass power plant refractory linings requiring high thermal shock resistance.
- Chemical, Petrochemical and Ceramics - High-temperature reactors, reformers, cracking heaters, ceramic kiln furniture, shuttle kilns, and glass lehrs where chemical inertness is critical.
Frequently Asked Questions (FAQ)
Q1: How do I select the right CA grade for my castable formulation?
A: The selection depends on your specific application temperature, required strength, chemical environment, and cost considerations. CA-50 and CA-60 are generally suitable for general-purpose castables with good cost-effectiveness. CA-70 offers superior purity for high-performance applications, while CA-80 is recommended for ultra-high-temperature environments exceeding 1700°C requiring minimal impurities. Please provide your design specifications for a tailored recommendation.
Q2: What is the recommended storage condition for this cement?
A: Our high alumina cement is hygroscopic and should be stored in a dry, well-ventilated warehouse. Keep the product in its original sealed packaging, away from moisture and humidity. Avoid stacking directly on concrete floors; use wooden pallets instead. If stored properly in sealed bags, the product can maintain its performance for up to 6 months.
Q3: Can this cement be used for urgent repairs during furnace operation?
A: Yes. Our CA-series cement is specifically designed for rapid hardening and early strength development, making it ideal for urgent repair projects with demanding schedules. For hot repairs, we recommend consulting our technical team for appropriate installation procedures to achieve optimal bonding and performance.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Qingdao Leadsun Refractory Co., Ltd
Location
No. 700, Qingshan Road, Licang District, Qingdao, China
Contact Person
Tony