Silica Fume ( Microsilica) is a co-product from the production of silicon or ferrosilicon metal. Silica fume is a mineral admixture, a very fine powder of spherical particles that average 0.1 to 0.3 microns in diameter with a surface area of 17 to 30m2/g.
Silica Fume ( Microsilica) is used in high performance concrete as a Pozzolan to improve its properties.
Tags: 96% Densified Silica Fume, 96% Densified Silica Fume Microsilica, Densified Silica Fume Grade 96, Densified Microsilica 96.
96% Densified Silica Fume Has the Following Features:
● Increased compressive strength.
● Increased flexural strength.
● Greater strength development.
● Potentially smaller structural section.
● Less rebound & wastage in shortcreting increase productivity.
● Cement replacement opportunities.
● Increased concrete density.
● Improved impremeability to agressive agent.
● Reduced susceptibility to sulphate attack & alkali-aggregate expansion.
● Improved cohesiveness reduces segregation & pumpability.
● Reduced bleeding allows early finishing.
● Improved finishing & electrical resistivity.
(1). Silica fume in Concrete
● Increacing strength
● Increasing density
● Frost resistance
● Early strength
● Abrasion resistance performance, anti-cavitations
(2). Silica fume in Cement
● Strengthens the fibre cement product.
● Increases the packing density of the cement matrix.
● Thereby enhance the durability of the fibre cement product.
● Enhances the plasticity of the fresh mix.
● Increases the bending strength of fibre reinforced cement
(3). Silica fume is used in refractory
● Instead of aluminum oxide to be used as refractory material
● As additive in amorphous and shappely refractory products, greatly improved products strength and high temperature performance.
● As casting combination accelerators in integral teeming ladle
● Agglomerating agent, agglutinant, accelerator and additive in other refractory products..
(4). Other Applications for Silica Fume:
● Rubber industry
● Anti-caking industry
● Pellet binder
● Waterglass industry
● Shotcrete
● Self-Compacting Concrete
● Mining & Tunnelling.
● High rise buildings.
● For producing all concrete products including readymix concrete.
● Motorways, bridges & dams etc