Refractory admixture silica fume

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Refractory admixture silica fume

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%