Lets
have a look at Silica which is an extremely reactive pozzolan due to its
chemical and physical characteristics. Concrete made with silica fume may be
extremely strong and long-lasting. Wood chips, coal, and quartz make up the
basic ingredients. Electric furnaces, like the ones in this picture, are used
to create silicon metal and alloys. Silica is available in some ranges like Micro
Silica Fume, Silica Fume, Undensified Microsilica, and Unidentified Microsilica
for refractory. Instead of being dumped, the smoke produced by running a
furnace is collected and sold as this chemical. It is a byproduct of making
silicon metal or ferrosilicon alloys.