APPLICATION OF IBEARUGBULEM’S MODEL FOR OPTIMIZING GRANITE CONCRETE MIX

Ibearugbulem O.M, Amanambu, I.K, Elogu T.I

Abstract: This work aims at developing a mathematical model for predicting the compressive strength of granitic concrete using Ibearugbulem’s regression model. A total of 45 cubes were cast, comprising of 3 cubes for each mix ratio of a total of 15 mix ratios. The first 11 mix ratios were used to determine the coefficients of the regression while the whole 15 was used to validate the model. The results from the model compared favourably with the experimental results. The model was tested with the statistical student t-test and found to be adequate at 95% confidence level. With the model developed in this work, any desired compressive made from granite concrete can be predicted if the mix proportions are known and vice versa.

Keywords: Ibearugbulem’s regression, compressive strength.

DOI: https://doi.org/10.15623/ijret.2014.0308062