Effect of Water Binder Ratio on Compressive Strength of Concrete Produced with Palm Oil Fuel Ash

International Journal of Civil Engineering

© 2019 by SSRG - IJCE Journal

Volume 6 Issue 6

Year of Publication : 2019

Authors : Thankgod Ode, B.E. Ngekpe ,Vincent B. Mbata

10.14445/23488352/IJCE-V6I6P106

How to Cite?

Thankgod Ode, B.E. Ngekpe ,Vincent B. Mbata, "Effect of Water Binder Ratio on Compressive Strength of Concrete Produced with Palm Oil Fuel Ash," SSRG International Journal of Civil Engineering, vol. 6,  no. 6, pp. 26-32, 2019. Crossref, https://doi.org/10.14445/23488352/IJCE-V6I6P106

Abstract:

This study involved the prediction of compressive strength of concrete produced with different proportions of palm oil fuel ash (POFA) as partial replacement of concrete as a function of water binder ratio. Water binder ratios of 0.22, 0.25 and 0.27 were investigated at various POFA replacement of 7.5%, 10%, 12.5% and 15% and cement contents of 450kg/m3, 550kg/m3 and 650kg/m3 for 28 days curing age. The results obtained from the experiment for each mix design were fitted into a linear regression model as a function of the water binder ratio. The results obtained from the linear regression model agreed with the experimental values. The correlation coefficients for all the POFA replacement percentages, including 0% POFA, were between 0.90 to 0.9999, except for 10% POFA replacement with cement contents of 550kg/m3, which was 0.8512. However, the compressive strength of concrete decreased with an increase in the water binder ratio. Again, the compressive strengths were highest at a cement content of 650 kg/m3. Hence the high agreement between the predicted and experimental data showed that the linear regression model has the capacity for prediction compressive strength of concrete at any given water binder ratio.

Keywords:

Mix design, POFA, Compressive Strength, Water Binder Ratio

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