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Information @ a Glance

General

  • Microsilica is a by product of the manufacture of silicon and ferrosilicon alloys. It consists of grey powder having extremely fine spherical particles of amorphous silica (sio2).

  • Silica fume is a very fine pozzolanic material, composed of amorphous silica produced by electric arc furnaces as a byproduct of the production of elemental silicon or ferro silicon alloys.

  • Silica fume, also known as microsilica, is a byproduct of the reduction of high-purity quartz with coal in electric furnaces in the production of silicon and ferrosilicon alloys.

Applications

  • Silica fume can be used in a variety of cementitious products such as concrete, grouts, and mortars as well as elastomer, polymer, refractory, ceramic and rubber applications.

  • Silica Fume is used in concrete to improve its properties. It has been found that Silica Fume improves compressive strength, bond strength, and abrasion resistance; reduces permeability; and therefore helps in protecting reinforcing steel from corrosion.

  • Silica fume is a by-product of producing silicon metal or ferrosilicon alloys in smelters using electric arc furnaces. These metals are used in many industrial applications to include aluminum and steel production, computer chip fabrication, and production of silicones, which are widely used in lubricants and sealants.

Market

  • The globalisation of the Indian economy paved the way for easy availability of micro-silica and latest superplasticisers in the country. M60 and higher grades of concrete are now becoming popular in the country with its proven utility in the construction of important structures.

  • A major marketing firm of microsilica in the country has estimated its turnover in the current year be approximately seven to eight hundred million rupees.

  • In global competition within the metal industry and especially regarding microsilica, there is a high demand for logistic efficiency. To move microsilica from one side of the world to the other is a very costly.

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