Black Silica Fume: black powder, SiO₂ content for 85 ~ 94%,Densified or Semi-densified, can be used in large concrete engineering, mortar and floor, pipe pile, as a necessary admixtures, our main products for exporting, popular with overseas customers.

TOPKEN Silica Fume can fill the porosity of the cement particles, and at the same time generate gel with hydration products, reacts gel with alkaline material- magnesium oxide. In concrete and mortar, mixed with right amount of silica fume, TOPKEN SF can play a role as follows:

1. Improve compressive strength, bending, anti-permeability, anticorrosive, impact resistance and abrasion resistance.

2. Waterretention, prevent segregation with water, greatly reduced concrete pumping resistance.

3. Extending the service life of the concrete. Especially in chlorine pollution erosion, salt, high humidity sulphate erosion harsh environment, can improve the durability of concrete doubled or even several times

4. Greatly reduce the landing gray of jet concrete and pouring material, improve the single spray layer thickness

5. Silica fume is the necessary ingredients of high strength concrete, used in some C150 concrete engineering.

6. The effect of silica fume is five times better than cement (Used in common concrete and low cement pouring material can save cost, improve durability)

7. Effective to prevent concrete alkali aggregate reaction.

 

 

silica fume can fill the porosity of the cement particles, and at the same time generate gel with hydration products, reacts gel with alkaline material- magnesium oxide. In concrete and mortar, mixed with right amount of silica fume, TOPKEN SF can play a role as follows:

1. Improve compressive strength, bending, anti-permeability, anticorrosive, impact resistance and abrasion resistance.

2. Waterretention, prevent segregation with water, greatly reduced concrete pumping resistance.

3. Extending the service life of the concrete. Especially in chlorine pollution erosion, salt, high humidity sulphate erosion harsh environment, can improve the durability of concrete doubled or even several times

4. Greatly reduce the landing gray of jet concrete and pouring material, improve the single spray layer thickness

5. Silica fume is the necessary ingredients of high strength concrete, used in some C150 concrete engineering.

6. The effect of silica fume is five times better than cement (Used in common concrete and low cement pouring material can save cost, improve durability)

7. Effective to prevent concrete alkali aggregate reaction.