XRD and SEM analysis of fly ash obtained from TPPs of Raipur district of Chhattisgarh

This paper deals with the study of fly ash samples with respect to its physical, chemical and structural properties collected from distinct sites of Raipur district of Chhattisgarh state in India. XRD diffractogram for the original fly ash confirms the fly ash is mainly an amorphous material with the presents of crystalline phase of quartz. Fly ashes samples consist of mostly glassy, hollow, spherical particles, which are cenospheres (thin-walled hollow spheres); the micro structure appearance of the original fly ash is well agreed. Equal amounts of Al2O3, Fe2O3, MnO, TiO2 were found in both the samples which are good fit for construction application. SEM images revealed the amorphous nature of the fly ash.