The basic forms of sulfate attack are the following: The reactive aluminates in the cement will react with the gypsum in cement during hydration. This process is harmless as the ettringite does not produce expansive forces and is stable in sulfate solutions. If the quantity of reactive aluminates in the cement is too high, then their hydrate form...

Densified Silica Fume is the most revolutionary concrete additive to have been developed in recent times.  The use of densified silica fume offers concrete manufacturers significant opportunities to substantially improve the strength, durability, finish and economy of their concrete products and concrete applications also it can be used with...

We are often used together with silica fume and concrete. When it is in concrete, it acts as a cementing material and as a filler. Small silica fume particles fill spaces between cement particles and past a cement base and aggregation between the particles. The combination of silica fume also the formation of pozzolanic reaction, by increasing the...

Silica fume, also known as micro silica,it is a very fine pozzolanic material, composed of amorphous silica produced by electric arc furnaces as a byproduct of the production of elemental silicon or ferro silicon alloys. Silica fume can be used in a variety cementitious products such as concrete,grouts,and mortars as well as...