Innovate

Fly ash as a innovation

Fly ash is a fine, glass-like powder recovered from gases created by coal-fired
electric power generation. Flyash material is solidified while suspended in the
exhaust gases and is collected by electrostatic precipitators or filter bags. Since
the particles solidify while suspended in the exhaust gases, flyash particles are
generally spherical in shape and range in size from 0.5 µm to 100 µm. They
consist mostly of silicon dioxide (SiO2), aluminum oxide (Al2O3) and iron oxide
(Fe2O3).

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