Products

Fly Ash otherwise called Pulverised Fuel Ash (PFA) is a combustion by-product obtained from burning coal. It is composed of fine particulates that are driven out of coal-fired boilers together with the flue gasses. In modern coal-fired power plants, fly ash is generally captured by electrostatic precipitators or other particle filtration equipment before the flue gasses reach the chimneys.

In the past, fly ash was generally released into the atmosphere, but air pollution control standards now require that it be captured prior to release by fitting pollution control equipment. Fly ash is generally stored at coal power plants or placed in landfills, about 43% is recycled, often used as a pozzolan to produce hydraulic cement or hydraulic plaster and a replacement or partial replacement for Portland cement in concrete production. Pozzolans not only ensure the better setting of concrete and plaster, but also provide concrete with more protection from wet conditions and chemical attack.