Performance of High Volume Fly Ash in Concrete Structures

Abstract

This paper presents the results of comparative study conducted to evaluate the strength properties of high volume flyash concrete(HVFAC) using a cement replacement level of 50%, 55% and 60% in M 20 and M 25 grades of concrete. In this investigation an attempt has been made to study the strength properties of HVFAC specimens in comparison with control OPC concrete specimens of same grade. It is observed that the compressive strength of HVFAC is improved by about 50% cement replacement by fly ash with 1.5% of plasticizer was equal to control concrete.