Comparative Evaluation of the Compressive Strength of Concrete with Fly Ash in Place of Cement

Thermal power stations produce fly ash, a residue that poses a serious risk to the environment. The purpose of this paper's inquiry report is to examine the Fly ash is used in cement concrete as an addition and as a cement ingredient to give an environmentally responsible method of disposal and reuse.
Fly ash is used as a substitute for cement in concrete mix designs at percentages of 0%, 10%, 20%, 30%, 40%, 50%, and 30% for maximum strength. It is suggested that adding cement in any amount sooner increases the concrete's compressive strength and later decreases it while also delaying its hardening. Additionally, extend the concrete's workability and setting time.