High strength high alumina castable is one of the unshaped refractory materials.It is made of refractory aggregate, refractory powder,binders and other additives.It is one of the new type refractory material and don’t need calcination. Construction way: Casting+vibration moulding; Max. Service Temperature: 1600 ºC
Application:
♦ In construction concretes, rapid strength development is achieved, even at low temperatures.
♦In construction concretes, high chemical resistance is possible.
♦In refractory concretes, strength is maintained at high temperatures.
♦As a component in blended cement formulations, various properties such as ultra-rapid strength development and controlled expansion can be obtained.
Competitive Advantage:
1. Abundant Experience.
2. Best price, make the products competitive in your market
3. Safty packing,prompt delivery time,and excellent after-sales services.
4. Large stocks. Guarantee prompt delivery.
5. Strict Quality Control. Meet clients'quality requirement.
6. Professional Packing. Avoid damage and secure the goods in transportation
High Strength High Alumina Refractory Castable：
| Item | High Alumina Cement | |||||
| CA50 | CA65 | CA70 | CA75 | CA80 | ||
| Al2O3%≥ | 50 | 63 | 68 | 73 | 77 | |
| Fe2O3%≤ | 2.5 | 0.8 | 0.7 | 0.6 | 0.5 | |
| SiO2%≤ | 7.5 | 1.2 | 1 | 0.8 | 0.5 | |
| R2O%≤ | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | |
| Cl%≤ | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | |
| S%≤ | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | |
| 325 mesh remind≤ | 12 | 5 | 5 | 5 | 5 | |
| Surface(m2/kg)≥ | 320 | 380 | 400 | 430 | 450 | |
| Initial Setting Time, min≥ | 60 | 120 | 120 | 120 | 120 | |
| Final Setting Time, min≤ | 360 | 420 | 420 | 420 | 420 | |
| Crushing Strength, MPa≥ | 1day | 55 | 45 | 40 | 35 | 30 |
| 3days | 65 | 55 | 50 | 45 | 40 | |
| Bending Strength, MPa≥ | 1day | 6.5 | 5.8 | 5.5 | 5.2 | 5 |
| 3days | 7.5 | 6.7 | 6.5 | 6.3 | 6 | |
