Fly Ash: Current Indian and worldwide scenario

  • Y.V. Khedekar et al.

Abstract

Fly ash is a fine gray powder comprising typically glassy and spherical particles that are formed as a byproduct of coal-fired power station. It consists of many minerals (quartz, kaolinite etc.), elements (P, K, Cu, Mg, Mn, etc.), crystalline phases (gypsum, aluminum oxide, iron, etc.), and is a cheap material having typical applications in various areas: cement production, concrete, ceramics, agriculture, waste management, and environmental rehabilitation etc. It is a valuable material produced largely in Thermal Power Stations (TPS). Every year the fly ash production in India is growing this is because of the increasing number of power stations. According to a report, more than 155 thermal power stations are currently producing more than 170 million tons fly ash this is because the generated fly ash at NTPC stations is widely used in the production of concrete products, cement, and cellular concrete products, bricks, blocks and tiles etc.   Current review deals with the worldwide production and utilization of Fly ash also in India and in Indian states. The objective behind paper is to focus on commercial interest of industries and Indian regulations with initiatives on fly ash utilization, redefines the Ash generation process also provides the unique static on patents filed in US on it

Published
2019-11-21
Section
Articles