Fly ash for high value added applications

The applications of fly ash under the category of manufacturing value added products have been broadly classified under two groups i.e., its use for extracting various resource materials like alumina, magnetite, carbon, cenospheres, titanium, gallium and various other trace elements and (ii) its use as raw materials for various specialized applications like ceramics, high temperature and acid resistant bricks, floor and wall tiles, mineral wool,light weight refractory, fillers, synthetic wood, sintered pozzolanic aggregate, building distempers etc. Other promising areas are ash alloys, foam insulation products and decorative glasses. In. this paper, various fly ash value added applications/ products have been subsequently covered.