• P-ISSN 0974-6846 E-ISSN 0974-5645

Indian Journal of Science and Technology


Indian Journal of Science and Technology

Year: 2017, Volume: 10, Issue: 36, Pages: 1-10

Review Article

Coal Bottom Ash as Sustainable Material in Concrete – A Review


Objective: This paper reviews the literature available on coal bottom ash (CBA) and its applications in building industry. Methods: The current trends on the reuse of CBA have been reviewed and the various properties of CBA are presented and discussed. Different percentage of CBA replacement in concrete was used. Findings: CBA were found thermally stable within the temperature range considered. Workability of fresh concrete containing CBA show a lower value due to the higher amount of replacement which required huge amount of water which effect the workability. Compressive strength of the concrete shows that it’s reached optimum strength beyond 28 days and no leachate of toxic elements in CBA was present. Application/Improvements: The review of the literature showed that the CBA was successfully recycle and applied for replacement as fine aggregate as well as coarse aggregate. It is concluded that the recycling of CBA as cement replacement material and also processing of CBA to develop nano-material are the future of CBA research.

Keywords: Coal Bottom Ash, Compressive Strength, Power Plant, Sustainable Material, Workability


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