Satyanarayana Ch.G., Kishore Kumar M
In this paper, research has been carried out pertaining to the influence of source of fly ash on compressive strength of concrete, due to the change in source both physical and chemical properties of fly ash has been carried out. It was found that the there was no influence of source on the three fly ashes collected for this investigation. The compressive strength of concretes in which cement was partially replaced with fly ash is presented.