Fly Ash Concrete - A comparative Study
- Mohd Akeeb Dar
- Shujaat Hussain Buch
- Rameez Raja Malik
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The utility of flyash as partial replacement in concrete mixes is on rise these days. Flyash is a waste product which is generated in thermal power stations. The quantity of fly ash produced from thermal power plants in India is approximately 110 million tons each year, and its percentage utilization is less than 20%. Majority of fly ash produced is of Class F typ . Such type of fly ash is produced by burning of anthracite or bituminous coal and possess pozzolanic properties. The use of these materials would reduce the disposal problems now faced by the thermal power stations and industrial plants. During the last few years, some cement companies have started using fly ash in manufacturing cement, known as 'Pozzolana Portland cement', but the overall percentage utilization remains very low, and most of the fly ash is dumped at landfills. Fly ash is generally used as replacement of cement, as an admixture in concrete, and in manufacturing of cement. For a variety of reasons ,the concrete construction industry is not sustainable .First ,it consumes huge quantities of virgin materials .Second ,the principal binder in concrete is Portland cement ,the production of which is a major contributor to greenhouse gas emission that are implicated in global warming and climate change .Third ,many concrete structures suffer from lack of durability which has an adverse effect on the resource productivity of the industry. Because the fly ash concrete system addresses all three sustainability issues, its adoption will enable the concrete construction industry to become more sustainable .In this research strength and durability of fly ash concrete are addressed after conducting tests on various specimens. Increase in strength as well as workability is achieved for upto certain values of replacement of fly-ash. For countries like China and India, this technology can play an important role in meeting the huge demand for infrastructure in a sustainable manner.
Mohd Akeeb Dar, Shujaat Hussain Buch, Rameez Raja Malik. "Fly Ash Concrete - A comparative Study".INTERNATIONAL JOURNAL OF ENGINEERING DEVELOPMENT AND RESEARCH ISSN:2321-9939, Vol.1, Issue 2, pp.58 - 66, URL :https://rjwave.org/ijedr/papers/IJEDR1302012.pdf
Volume 1 Issue 2
Pages. 58 - 66
