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In a country like United States for example, they also produced over 100 million tonsof coal fly ash every year and facing almost the similar problem in handling themassive amount of fly ash waste produced. Thus it is very important for them to findsolution for this problem. Now days around 43% of fly ash waste in the United2
States is currently recycled, the major used by far being the replacement of Portlandcement (cement manufactured from chalk and clay which hardens under water andwhen hard resembles Portland stone in color). Due to the massive amount of wasteincreasing from year to year it is very important to reuse and utilized the waste.Today, more than 16,000 fly ash brick plants are operating in India starting from just100 plants in year 2000. Although the number of plants are increasing but still thereis a market potential for it as the fly ash waste in India is not 100 per cent utilize. Forthe production record, fly ash bricks account nearly one-sixth of India’s annual bricksproduction. Considering the main idea is to overcome the problem of disposal of flyash, reducing the number of land required as well as the opportunities for preservingtraditional resources , the manufacturing an utilization of fly ash bricks has nowbecome very important to the country especially from the economic andenvironmental points of view .1.2The Fly Ash Bricks by the National Thermal Power Corporation(NTCP) in IndiaIn order to overcome with the problem of fly ash waste in India the agencies such asthe National Thermal Power Corporation (NTPC) of India had invented a newtechnology to utilize the fly ash waste by inventing a fly ash brick as a constructingmaterial to build up walls. The fly ash brick can also replace the uses of clay brick inthe construction industry. The technology they invented uses a mix of 60 to 80 percent fly ash, 10 per cent sand, 10 per cent gypsum and 10 to 20 per cent lime thatcan replaces the use of clay from the soil. The bricks are regarded as strong andhigh quality.3
The NTPC has also established a pilot project where they set up a fly ash brickmanufacturing plants at their thermal power plant. The project was a success andthey have produced approximately 150 million bricks in these plant. So far all of thebricks are used for their in house consumption. The also suggested that a new plantshould follow the guide line of the quality standards of IS12894:1990 in order tosustain the quality of the bricks produced. A process outline for manufacturing fly ashbricks is given in Exhibit 1.Exhibit 1 : Process ofManufacturing Fly Ash Bricks1.3The Fly Ash Project by Rajiv Sharma and Alok GuptaThis case is about 2 entrepreneur Sharma and Gupta who plan to set up a fly ashbrick manufacturing plant as they see there is a good opportunity of it. Sharma hasbeen doing some market research and he finds out that there is a good businesspotential for fly ash bricks.