Micro Silica also known as Silica fume. It is a by product of producing silicon metal or ferrosilicon alloys in smelter using electric arc furnaces. It is a grey coloured powder, pozzolanic in nature.
Applications
Concrete Industry
Refractory
Rubber Industry
Anti caking agent
Pellet Binder
Micro silica also known as fume, is an amorphous (non-crystalline) polymorph of silicon dioxide, silica. It is an ultrafine powder collected as a by-product of the silicon and ferrosilicon alloy production and consists of spherical particles with an average particle diameter of 150 mm. The main field of application is as pozzolanic for high performance concrete because of its extreme fineness and high silica.
Applications :
Silica is added to Portland cement concrete to improve its properties, in particular its compressive strength, bond strength, and abrasion resistance. These improvements stem from both the mechanical improvements resulting from addition of a very fine powder to the cement paste mix as well as from the pozzolanic reactions between the silica fume and free calcium hydroxide in the paste.
Advantages :
Addition of silica also reduces the permeability of concrete to chloride ions, which protects the reinforcing steel of concrete from corrosion, especially in chloride-rich environments such as coastal regions and those of humid continental roadways and runways (because of the use of deicing salts) and saltwater bridges.
Silica Fume (Micro Silica) 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
Sio2 85% min
H2O 2% max
LOI 3% max
Specific surface Area(B.E.T) : 15,000-22,000sqm/kg
Pozz. Activity :110% min
Bulk density : 550-700kgs/m3
The high Pozz. activity is easy reactive with cement . when added to cement will greatly
improve cement performance.
globalsources.com/everwintiles.co
The
SiO n the micro-silica is an amorphous material so that micro-silica is a small particle with high activity, large specific surface area, and favorable physical and chemical property.
We are exporter of Micro Silica from Turkey .
Offering micro silica with 94% - 96% purity. Ideal for various industrial applications. Contact us for details and pricing.
