Abstract
The study was intended to estimate the effect of steel and banana fibre hybrid composition in the quaternary blended high performance concrete. M40 grade concrete was selected to evaluate the performance of hybrid fibre in quaternary blended system. Factory made binary blended fly-ash based Portland Pozzolana Cement (PPC) was selected and Ground Granulated Blast furnace Slag (GGBS) was added at 5% and 10% as partial replacement of cement for making the ternary combination. The Nano-silica (NS) was added at 1% of total powder content to all the concrete mixtures as third mineral admixture. Steel fibre and banana fibre were supplemented to improve the performance of the concrete. Steel fibre was added at 2% and the banana fibre dosage was varied from 0.1% to 0.3% of volume of concrete to develop the hybrid fibre composition. The compressive strength and splitting tensile strength were determined and the correlation between the strength properties was predicted. The findings from this investigation, decrease in workability after adding fibres was noticed and suitable modification using superplastizer was made to make the estimated level of slump value. The regression equation between the mechanical properties were found and presented. The combination of 0.2% banana fibre + 2% steel fibre + 5% GGBS + 1% NS had shown the best performance.
Published Version
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