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Form Powdered
Color Grey
Grade 92 D
Purity 92
Packaging 25/40/50 KG HDPE bags
Standards ASTM C1240/ EN 13263
Supply Capacity 3000 Tons/Month

 

Description

  • Silica Fume, also known as Microsilica is an ultrafine powder collected as a byproduct in the formation of ferrosilicon alloys in electric arc furnaces. Silica fume is an amorphous (non-crystalline) polymorph of silicon dioxide, silica with an average particle diameter of 150 nm.
  • Microsilica’s extreme fineness and high silica content make it a very effective pozzolanic material. Standard specifications for Microsilica used in cementitious mixtures are ASTM C1240 and EN 13263.
  • Microsilica is added to ordinary Portland cement to enhance its compressive strength, abrasion resistance, and durability.

 

Benefits of using Microsilica in concrete

  • Reduces thermal cracking
  • Enhances strength and durability
  • Provides a higher degree of resistance to chloride ingress, sulfates, and acidic waters
  • Reduces the rate of carbonation
  • Imparts high electrical resistivity