top of page
Silica Fume (Micro Silica) 3

Silica Fume (Micro Silica) 3

Micro Silica (Silica Fume) is byproduct of producing silicon metal or ferrosilicon alloys, it is an ultrafine material with spherical particles less than 1μm in diameter, the average being about 0.15μm. This makes it approximately 100 times smaller than the average cement particle. The specific gravity of silica fume is generally in the range of 2.2 to 2.3. The specific surface area of silica fume can be measured with the BET method or nitrogen adsorption method. It typically ranges from 15,000 to 30,000m2/kg. Because of its extreme fineness and high silica content, silica fume is a very effective pozzolanic material.
 
Micro Silica (Silica Fume) is mainly used as cement admixture or concrete binder to improve the performance of cement or concrete with higher strength abrasion resistance, erosion resistance, corrosion resistance and permeability resistance. It is used in dams, reservoirs, hydropowers, harbor wharfs, railway bridges, expressways, airport runways, tunnels and high-rise building projects.
 
Applications:
  • Ordinary Concrete                     
  • High-Speed Railway and Bridge Project
  • Hydraulic Concrete                              
  • Super High-Rise Building Project
  • Oil Field Well Cementation         
  • Refractory Materials
 
Grade:
  • 85U (SIO2:85% min. Undensified; Bulk Density: 200-400kg/m3)
  • 85D (SIO2:85% min. Densified; Bulk Density: 500-700kg/m3)
  • 90U (SIO2:90% min. Undensified; Bulk Density: 200-400kg/m3)
  • 90D (SIO2:90% min. Densified; Bulk Density: 500-700kg/m3)
  • 92U (SIO2:92% min. Undensified; Bulk Density: 200-400kg/m3)
  • 92D (SIO2:92% min. Densified; Bulk Density: 500-700kg/m3)
  • 95U (SIO2:95% min. Undensified; Bulk Density: 200-400kg/m3)
  • 95D (SIO2:95% min. Densified; Bulk Density: 500-700kg/m3)
 
Standards: Chinese Standard and International Standard ASTMC-1240
Packing: 20KG, 25KG, 500KG, 1MT BAGS
Loading: by containers, tanker or break bulk vessel
    bottom of page