Characterising long-term wet-stored fly ash following carbon and particle size separation

► Recovery of coal-derived fly ash from ponds and stockpiles. ► Low-cost wet-processing technology used to homogenize the materials. ► Microstructural, physical nature and chemistry of particle groups investigated. ► Heterogeneity reduction giving particle groups for various construction applications. ► Potential for yield optimisation for holistic use of fly ash.