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| Categories | Refractory Castable |
|---|---|
| Brand Name: | Rongsheng |
| Model Number: | Refractory cement |
| Certification: | ISO9001 |
| Place of Origin: | China |
| MOQ: | 1 TON |
| Price: | $300.00 - $1,000.00/ Ton |
| Payment Terms: | L/C, T/T, Western Union |
| Supply Ability: | 5000 Metric Ton/Metric Tons per Month |
| Delivery Time: | 7-15 work days |
| Packaging Details: | 25 or 50kg in small bag or as your requirement. |
| SiO2 Content (%):: | ≤1.0% |
| Al2O3 Content (%):: | 68%~77% |
| Refractoriness (Degree):: | Common (1580°< Refractoriness< 1770°) |
| Model Number:: | CA-70 |
| S:: | ≤0.1 |
| Color:: | Grey |
| Certificate:: | ISO9001:2015 |
| Initial setting time (min):: | ≥45 |
| Company Info. |
| Zhengzhou Rongsheng Refractory Co., Ltd. |
| Verified Supplier |
| View Contact Details |
| Product List |
China fire resistant high heat refractory cement for boiler
The raw materials of calcium aluminate cement CA-70/80 are high purity calcium materials and high pure alumina. The raw materials should be mixed according to suitable ratio. The raw material should be burned to partly fuse. After cooling, α-Al2O3 powder added into clinker, then ground to cement. The content of Al2O3 is usually controlled within 68% to 72%. The principal compounds of it are CA and CA2.
| Product | CA-65 | CA-68 | CA-70 | CA-75 | CA-80 | |
| Chemical Composition (%) | Al2O3 | 64-66 | 67-69 | 69-71 | 73-75 | 77-80 |
| CaO | 32-34 | 29-31 | 27-29 | 23-25 | 18-20 | |
| SiO2 | 1.8 | 1.2 | 0.3 | 0.3 | 0.3 | |
| Fe2O3 | 0.6 | 0.6 | 0.3 | 0.3 | 0.3 | |
| Specific Surface (cm2/g) | 4500 | 4500 | 5000 | 5500 | 7000 | |
| Setting time (h:min) | Initial setting (min) | 0:40 | 0:40 | 0:40 | 0:45 | 0:45 |
| Final Setting (min) | 8:00 | 8:00 | 10:00 | 10:00 | 10:00 | |
| Cold Modulus of Rupture (MPa) | 24 hour | 6.0min | 6.0min | 6.0min | 6.0min | 5.0min |
| 72 hour | 8.0min | 8.0min | 8.0min | 8.0min | 6.0min | |
| Cold Crushing Strength (Mpa) | 24hour | 45.0min | 45.0min | 45.0min | 45.0min | 35.0min |
| 72hour | 70.0min | 70.0min | 70.0min | 70.0min | 60.0min | |
| Refractoriness (°C) | 1680 | 1710 | 1730 | 1750 | 1770 | |
Calcium aluminate CA-70/80 is used for manufacturing good property (low water, low cement) refractory castable, or unshaped bulk refractory materials, which are used in high temperature, high pressure, and reducing condition. It is also high quality binder of refractory castable, which is extensively applied in chemical industry, metallurgical industry, building material, petroleum industry, ceramic industry etc.
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