CA50
CA50 is a high-performance calcium aluminate cement developed for refractory applications requiring thermal stability and corrosion resistance. Produced by sintering high-purity bauxite and limestone, it is primarily composed of monocalcium aluminate (CaO·Al₂O₃) and features rapid strength development and reliable performance under high-temperature and chemically aggressive environments. The CA50 series includes A600, A700, and A900 grades, each designed to meet specific setting and strength profiles for various castable systems.
Category:
key word:
CA50
Service Hotline：+86 15617626826
Consult NowCA50-A600 – High Alumina Calcium Aluminate Cement
CA50-A600 is a high-performance calcium aluminate cement designed as a hydraulic binder for refractory applications. Its primary constituent, monocalcium aluminate (CaO·Al₂O₃, or CA), delivers rapid hardening properties and a pronounced hydration exothermic rate, making it an excellent choice for conventional high-cement castables. Produced through a sintering process in a rotary kiln using premium bauxite and limestone, CA50-A600 ensures consistent quality and robust performance in high-temperature environments. Its balanced formulation supports a variety of industrial uses where early strength and thermal resistance are essential.
Key Features
● High alumina content for enhanced refractoriness
● Rich in monocalcium aluminate for rapid strength development
● Concentrated heat release during hydration
● Stable setting time with strong early strength
● Excellent rheological properties for casting and gunning
Benefits
● Speeds up project timelines with fast setting and early strength gain
● Enhances durability under high temperatures and abrasive conditions
● Offers versatility for traditional high-cement formulations, minimizing repair downtime
Technical Highlights
CA50-A600 is manufactured using a rotary kiln sintering process, yielding a uniform clinker rich in CA phases. Its rapid hydration generates significant early heat, ideal for conventional castables requiring quick hardening. The presence of moderate iron oxide enhances abrasion resistance but limits its use in reducing atmospheres. This cement aligns with industry standards for high-alumina binders, delivering reliable performance across applications.
CA50-A700 – High Alumina Calcium Aluminate Cement
CA50-A700 is an advanced calcium aluminate cement offering improved purity over A600, tailored for low-cement castables. Composed primarily of monocalcium aluminate (CA), it provides stable hardening and rapid strength gain, making it ideal for applications requiring precision and durability. Manufactured through a controlled rotary kiln sintering process with high-grade bauxite and limestone, CA50-A700 features reduced impurity levels, enhancing its refractoriness and performance in high-temperature settings. This cement is a trusted solution for industries demanding consistent quality.
Key Features
● High alumina content with improved purity
● Elevated monocalcium aluminate for strength development
● Stable setting with rapid early strength
● Superior workability for low-cement and medium-cement formulations
● Enhanced resistance to thermal and mechanical stress
Benefits
● Ensures consistent hardening with minimal variability, boosting reliability
● Prolongs service life in extreme thermal and abrasive conditions
● Simplifies application with optimized flow properties for complex molds
Technical Highlights
CA50-A700 is produced by sintering at precise temperatures, yielding a clinker with a high CA content. Its lower levels of silica and iron oxide reduce slag formation and improve resistance to chemical attack, meeting industry benchmarks for high-alumina cements. This formulation supports advanced refractory systems where reduced cement content enhances performance and longevity.
CA50-A900 – High Alumina Calcium Aluminate Cement
CA50-A900 is a top-tier calcium aluminate cement crafted from ultra-pure raw materials, delivering elite refractory performance. Dominated by monocalcium aluminate (CA), it features the lowest impurity levels in the CA50 series, ensuring exceptional mechanical strength and stability in extreme conditions. Produced via a meticulous rotary kiln sintering process, CA50-A900 is the preferred binder for ultra-low cement castables and advanced refractory systems, offering superior workability and durability for cutting-edge applications.
Key Features
● Elevated alumina content with maximum purity
● High monocalcium aluminate for outstanding strength
● Excellent mechanical stability and thermal resistance
● Optimized rheology for intricate casting and gunning
● Superior chemical resistance in harsh environments
Benefits
● Achieves peak performance in the harshest thermal and chemical settings
● Enhances application ease with excellent flow and placement properties
● Extends refractory lifespan, reducing maintenance needs
Technical Highlights
CA50-A900 is sintered at high temperatures using select bauxite and limestone, yielding a clinker with a dominant CA phase. Its minimal impurity profile minimizes phase transitions and enhances ceramic bonding at elevated temperatures, aligning with industry standards for high-alumina cements. This advanced formulation supports sophisticated refractory designs with reduced cement content, maximizing strength and stability.
| CA50-A600 | CA50-A700 | CA50-A900 | ||
| Refractoriness(℃) | 1400-1450 | 1400-1450 | 1400-1450 | |
| Chemical Composition(%) | ||||
| Al2O3(%) | 50.0-51.0 | 50.5-51.5 | 53.5-54.5 | |
| CaO(%) | ≥33.0 | ≥33.0 | ≥33.5 | |
| SiO2(%) | 7.8-8.3 | 7.0-7.5 | 5.0-5.5 | |
| Fe2O3(%) | 1.5-2.5 | 1.5-2.5 | 1.5-2.0 | |
| Fineness | ||||
| Specific Surface of Cement-Blaine Method(m2/kg) |
320-350 | 350-380 | 380-450 | |
| Setting Time(min) | ||||
| Initial Setting Time(min) | 50-120 | 50-120 | 50-120 | |
| Final Setting Time(min) | 90-180 | 120-210 | 210-300 | |
| Flexural Strength (MPa) | ||||
| 24h Flexural(MPa) | 5.5-5.8 | 6.5-7.0 | 8.5-9.0 | |
| 72h Flexural(MPa) | 6.5-6.8 | 7.5-8.0 | 9.5-10.0 | |
| Compressive Strength(MPa) | ||||
| 24h Compressive(MPa) | 45-55 | 50-60 | 70-75 | |
| 72h Compressive(MPa) | 50-60 | 60-65 | 80-85 | |
| Additional Information | ||||
| Principal phase |
CA |
|||
| Secondary phase | C12A7、C2AS、CT | |||
| Other Physical Characteristics | ||||
| Bulk density | 900-1000kg/m3 | |||
| Specific gravity | 2.9-3.1g/cm3 | |||
CA50-A600 Applications
● High-performance alkali-resistant castables for chemical and metallurgical furnaces
● High-alumina castables for linings in cement kilns and steel ladles
● Slag-stopping balls and general-purpose refractory structures in steelmaking
CA50-A700 Applications
● Low-cement castables for steel ladle linings and aluminum furnace repairs
● Refractory mortars for kilns, incinerators, and petrochemical reactors
● Precision-cast refractory shapes in high-stress environments
CA50-A900 Applications
● Ultra-low cement castables for critical zones in blast furnaces and petrochemical kilns
● High-alumina linings for cement rotary kilns and waste incinerators
● Specialized gunning mixes for rapid high-temperature repairs
MESSAGE
We will contact you within one working day. Please pay attention to your email.
Related products
Calcium Sulphoaluminate Ground Clinker for High-Performance Cementitious Systems
CSA expansive agent is a high-efficiency shrinkage-compensating material formulated by blending carefully selected natural anhydrite with a specially manufactured clinker composed primarily of calcium sulphoaluminate and free lime (CaO). It is designed to be used in combination with ordinary Portland cement.
Rapid Pavement Repair Material
CSA-Based High-Performance Solution for Time-Critical Concrete Restoration
CSA-Based Rapid-Set Solution for Active Water Ingress Control in Concrete Structures
ZHENGZHOU XINMI MOLTEN MATERIAL CO., LTD.
Add：Pingmo Industrial Park, Pingmo Town, Zhengzhou, Henan Province, China
Tel：+86 15617626826
Email：jeffsung@xmmlt.com
Copyright© 2025 Zhengzhou Xinmi Molten Material Co., Ltd. www.300.cn SEO This website supports IPv6 Privacy Policy