What Is Silica Fume? Uses, Benefits and Applications

Silica fume is an ultrafine, amorphous silica powder collected as a by-product when silicon and ferrosilicon alloys are made in electric arc furnaces. It is also known as microsilica.

Its particles are about a hundred times smaller than cement grains. That makes silica fume extremely effective at filling tiny gaps and reacting with free lime, so it is used in high-performance concrete, grouts, fibre cement, oil-well cement and refractories.

The benefits are higher strength, lower porosity and better durability. In refractories, silica fume improves packing and high-temperature performance of castables.

Bahubali Chemical Industries supplies refractory grade, gypsum board grade and white silica fume from Vadodara.

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