Dry Micro Silica Fume Powder, For Industrial Production, Packaging Type : Bag, HDPE Bag, Jumbo Bags

Silica fume, be also known as micro silica is silicon dioxide, silica it is an ultrafine powder collected as a by product of the silicon and ferrosilicon alloy production. The main field of application is as pozzolanic material for high performance concrete. 

Application.:

Because of its extreme fineness and high silica content, silica fume is very effective pozzolanic material standard specification for silica fume used in cementitious, mixture are ASTM (1240, [8] EN. 13263.[9] .

Silica fume is added, to cement concrete to improve its properties in particular it's comprehensive strength,bond strength and abrasion resistance, these improvement steam from both the mechanical.

Improvements resulting from additon of Avery 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.

Addition of silica fume also reduce the permeability of concrete to chloride ions, which protects the reinforced 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 Salt) and Saltwater bridges.

Effect of silica fume on different properties of fresh and hardened, concrete include.