Fly ash represents a critical, yet underutilized resource for use as a
supplementary cementing material (SCM) for replacement of ordinary portland cement
(OPC) to produce low CO2 footprint concretes. However, compositional variability and lack
of rigorous classification methods currently limits its use, due to unpredictable performance
of fly ash in cementitious mixtures. This research evaluates a wide range of fly ashes
sourced based on compositional variation as well as abundance. Ashes are exhaustively …