 This research paper examined the potential of using fly ash from municipal solid waste incinerators as an admixture in cements. Fly ash is a byproduct of incinerating MSW, which can contain high levels of dioxin and other heavy metals. This study found that thermal treatment in carbon dioxide CO2, nitrogen, N2, or air atmospheres can reduce the amount of dioxin present in the fly ash while maintaining its structural integrity. Additionally, the thermal treatment in CO2 atmosphere resulted in the highest reduction of dioxin content. Furthermore, the thermal treatment in any of these atmospheres does not affect the physical and chemical properties of the fly ash, such as compressive strength and water absorption. Finally, the authors concluded that fly ash treated in CO2 atmosphere can be used as an admixture in cement with no risk of heavy metal leaching. This article was authored by Ting Xu He, Jiang Wuli, Xia Dong Ma, and others. We are article.tv. Links in the description below.