Jingying Yan

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1. Introduction Fly ash is a pozzolanic mixture resulting from the combustion of coal at temperatures between 650 and 800 °C [1,2]. The significant buildup of fly ash in prominent power plants has emerged as a concern for the nearby ecosystem and public well-being. In order to reduce the problems caused by its storage, fly ash has been intensively investigated as a starting material in different fields of research.