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Fly ash cement

Hemalatha, T and Ramaswamy, A (2021) Fly ash cement. [Book Chapter]

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Official URL: https://doi.org/10.1016/B978-0-12-817686-3.00016-5


In many countries in the world, coal is a major source of fuel for the production of electricity. During the production of electricity, a large quantity of fly ash (FA) is generated and causes disposal problems to the industry and environmental problems to the society. FA is a by-product from the coal-based power stations resulting from the combustion of coal. A huge amount of FA is generated in many countries and owing to its finer size causes severe environmental pollution. In order to address the disposal problem of the industry as well as the environment, in the past few decades the use of FA has been researched in various fields and its premium application is found in the concrete industry as a cement/aggregate replacement material. A huge saving in cement and the production of durable concrete are the main advantages of using FA in cement. When this FA replaced cement is used in concrete, it provides significant technical benefits such as improved consistency, lower heat of hydration, and improved strength and durability characteristics. Further, as a hugely generated waste with the potential to replace cement in concrete, FA reduces the cost of concrete production. Nowadays, FA replaces cement in low volume in the order of 20 to high volume in the order of 60 for various applications. Further alkaline activated FA (geopolymer) 100 replaces cement. This chapter deals with the various characteristics of FA blended cement. © 2022 Elsevier Inc. All rights reserved.

Item Type: Book Chapter
Publication: Handbook of Fly Ash
Publisher: Elsevier
Additional Information: The copyright for this article belongs to Elsevier
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 20 May 2022 11:27
Last Modified: 20 May 2022 11:27
URI: https://eprints.iisc.ac.in/id/eprint/71889

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