Silica Fume 90          

Silica fumed Description:

Silica fume, also known as microsilica, is anamorphous (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 nm. The main field of application is as pozzolanic material for high performance concrete.

silica fume for Concrete

Because of its extreme fineness and high silicacontent, silica fume is a very effective pozzolanic material.

Silica fume is added to Portland cementconcrete 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.

Addition of silica fume 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.

Specification:

                Various speciation can be produced as your requirement

FAQ:

Q: Are you a factory or only a trading company?

    A:We are a factory.

 Q: Will you supply free samples?

   A: Yes,it's available.We 'd love to provide free sample.But the cost of frieght is paid by you.

Q:How soon you can get the samples?

   A:We need 1-2 days to prepare the sample and then delivery to you.

Q:How about the quality of the products you provide?

    A: Our quality has been certificated by ISO9001 ,and you are welcome to visit our factory and production line.

We are :

  Henan Giant Industrial Co.,Ltd :the main products include Ferro Silicon ,silicon metal,silicon carbide,silica fume ,Silicon Calcium,Si-Al-Ba-Ca Alloy/ Ba-Ca  Alloy  ,Cored  Wire, Silicon  Barium  and other Materials.