Abstract

In this research a correlation between simple and easily obtained common mix parameters have been developed to estimate the strength of the pozzolanic concrete containing Fly Ash. Experimental data from nine sources was obtained and then analyzed using multiple regressions. The parameters selected for the model development include concrete age, water to binder ratio (W/B), Fly Ash replacement, Fineness of Fly Ash, Tricalcium Silicate (C S) and Dicalcium 3 Silicate (C S) content.The derived model was designed 2 ' to predict the compressive strength f of Fly Ash c concrete up to ±30% precision. The model isdeveloped for individual ages of 7, 28, 90/91 days.