Experimental Study on Concrete with Fly Ash Pellets Replacing by Coarse Aggregate

In this study, the coarse aggregate are completely replaced by fly as aggregate in fly ash concrete. A mix design was done for M20 grade of concrete by IS method. Ordinary Portland cement of 43grade was selected and fly ash aggregate were prepared by mixing fly ash with cement and water. The properties of fly ash coarse aggregate were studied. The cement and fly ash proportions 70:30, 60:40 were tried with a suitable water cement ratio of 0.3 to get the fly ash aggregate. The concrete cubes, cylinder were cast with fly ash aggregate obtained from the above two cement fly ash proportion. Then the compressive strength was tested. This paper briefly presents the compressive strength development of fly ash aggregate concrete at different days of curing.