CA50 Model: A600, A700, A900
Material: Calcium aluminate
Quick hardening and early strengthening
Anti-freezing
Paper bags: 25/50kg
Big bags: 1.0/1.5mt
Refractory Cement CA50
Description
The rheological properties of Refractory Cement CA50 are ideal for all types of placement methods, especially casting and gunning. Recommended for applications with rapid hardening characteristics and excellent mechanical properties.
Features
- Good plasticity.
- Easy construction.
- high bond strength.
- Strong corrosion resistance.
- high refractoriness.
- Good resistance to slag invasion.
- Good thermal peeling.
Specification
| Brand | A600 | A600 | A700 | A700 | A900 | A900 |
|---|---|---|---|---|---|---|
| Refractory cement Types | Usual range | Specification limit | Usual range | Specification limit | Usual range | Specification limit |
| SiO2 (%) | 7.8-8.3 | ≤9.0 | 7.0-7.5 | ≤8.0 | 5.0-5.5 | ≤6.0 |
| Al203 (%) | 50.0-51.0 | ≥50.0 | 50.5-51.5 | ≥50.0 | 53.5-54.5 | ≥53.0 |
| Fe203 (%) | 1.5-2.5 | ≤3.0 | 1.5-2.5 | ≤3.0 | 1.5-2.0 | ≤3.0 |
| R20 (%) | – | ≤0.5 | – | ≤0.5 | – | ≤0.5 |
| S- (%) | – | ≤0.2 | – | ≤0.2 | – | ≤0.2 |
| CI- (%) | – | ≤0.06 | – | ≤0.06 | – | ≤0.06 |
| 325M(%) | – | ≤20 | – | ≤15 | – | ≤8 |
| Specific surface areas m2/kg | – | ≥320 | – | ≥350 | – | ≥380 |
| Setting time, min | ||||||
| Initial setting time IS | 50-120 | ≥30 | 50-120 | ≥30 | 150-210 | ≥150 |
| Final setting time FS | 90-180 | ≤360 | 120-210 | ≤360 | 210-300 | ≤360 |
| Flexural strength, Mpa | ||||||
| 1d | – | ≥5.5 | – | ≥6.5 | – | ≥9.5 |
| 3d | – | ≥6.5 | – | ≥7.5 | – | ≥9.5 |
| Compressive strength, Mpa | ||||||
| 1d | 45-55 | ≥40 | 50-60 | ≥50 | 70-75 | ≥70 |
| 3d | 50-60 | ≥50 | 60-65 | ≥60 | 80-85 | ≥80 |
Application
KERUI CA50 products are manufactured by sintering process in rotary kiln, represented by three product types A600. A700 and A900.
- CA50-A600: A600 product has rapid hardening properities and high hydration exothermic rate, it’ s widely recommended for conventional high cement castables such as high performance alkali resistance castables, high alumina castables and slag-stopping ball, etc.
- CA50-A700: In comparison with A600, A700 product has lower impurities level, stable hardening properties and rapid strength development, it is recommended mainly to be used in low cement castables.
- CA50-A900: A900 product is produced with selection of high purity materials, the alumina content of A900 is higher than other grades, and impurity oxides as like SiO2, Fe203 content is lower than that of A600 and A700. So, it is widely recommended for applications where stable hardening properties, good working ability and excellent mechanical performance are required.
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