Abstract
Coal bottom ash (CBA) generated from power plants have become a major environmental concern and hence its usage by recycling it is the increasing demand for research nowadays. CBA is collected from bottom of the boiler and is normally as coarse sand to fine gravel size material which is generally used as a low cost replacement material. In this paper CBA waste material is introduced, considered and its utilization is reviewed. Information is provided on the various reuse options of this waste material which has been implemented. To replace the material as an ingredient in concrete is the key aim of this paper and has been emphasized throughout. To reduce the burden on natural aggregates and cement use of such CBA can prove to be a good option in future. It is also concluded that some pre-defined treatment method is needed to be developed to implement the use of CBA in concrete. This paper would help beginners to understand the scope and development in use of CBA in concrete as an ingredient.
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