Silica Fume is widely used in refractory industry. The practical application in the following aspects:
1.Instead of pure aluminum oxidation mud as refractory materials
2. As additive production in amorphous and shaped refractory products, greatly improve strength, high temperature
performance.
3. Used as coagulant agent in the pouring of steel barrel’s monolithic lining.
4. As binder, coagulant agent, additives in the production of other refractory.
More information about Refractory admixture silica fume: http://www.silicafumesupplier.com/micro-silica-fume-for-refractory.html
Micro silica Fume for Refractory technical parameter:
| Test Item | Standard | Result | Standard | Result | Standard | Result | Standard | Result |
| SF85 | SF90 | SF94 | SF96 |
|||||
| SiO2(%) | 85%min | 87.94% | 90%min | 92.21% | 2.0%max | 95.46% | 2.0%max | 97.68% |
| Fe2O3(%) | 2.0%max | 0.47% | 2.0%max | 0.57% | 2.0%max | 0.04% | 2.0%max | 0.02% |
| Al2O3(%) | 2.0%max | 0.42% | 2.0%max | 0.51% | 2.0%max | 0.27% | 2.0%max | 0.18% |
| CaO(%) | 2.0%max | 0.51% | 2.0%max | 0.64% | 2.0%max | 0.11% | 2.0%max | 0.05% |
| Na2O3(%) | 2.0%max | 0.63% | 2.0%max | 0.58% | 2.0%max | 0.41% | 2.0%max | 0.10% |
| Moisture(%) | 2.0%max | 0.50% | 2.0%max | 0.74% | 2.0%max | 0.34% | 2.0%max | 0.38% |
| Loss on Ignition(%) | 3.0%max | 2.43% | 3.0%max | 1.47% | 3.0%max | 1.42% | 3.0%max | 1.01% |
| Bulk Density
(Densified) |
550-700kg/m3 | 650kg/m3 | 550-700kg/m3 | 650kg/m3 | 550-700kg/m3 | 650kg/m3 | 550-700kg/m3 | 650kg/m3 |
| Bulk Density
(Undensified) |
300-380kg/m3 | 330kg/m3 | 300-380kg/m3 | 330kg/m3 | 300-380kg/m3 | 330kg/m3 | 300-380kg/m3 | 330kg/m3 |
| Particle Size
+/-0.045mm |
99.00%min | 99.67% | 99.00%min | 99.87% | 99.00%min | 99.89% | 99.00%min | 99.98% |
