Abstract
Enhanced construction activities, shortage of conventional building materials and abundantly available industrial wastes have promoted the development of new building materials. Annual production of approx. 50 million tonnes of fly ash in India has still limited applications, the large bulk quantity of which remains abandoned as waste. Production of sintered fly ash aggregates has the unique possibility for bulk utilization of fly ash. A techno-commercial feasibility study was undertaken on the production of the light-weight aggregates from fly ash. This paper describes the production method, pilot plant investigations, process engineering of a demonstrative unit, major plant and equipment specifications, cost-economics, etc. The prospects for setting up a commercial unit in the state of West Bengal in the proximity of thermal power plants have been observed to be significantly potential.
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