EXPERIMENTAL INVESTIGATION OF SUSTAINABLE CONCRETE SLENDER BEAM UTILIZING FINE COAL BOTTOM ASH AND GROUNDED COIR FIBRE

Abstract

The current study represents an attempt made to develop eco-friendly structural concrete using different percentages of fine coal bottom ash (FCBA) as a partial cement replacement and grounded coir fiber (GCF) as filler. X-ray diffraction (XRD and key testing were performed to investigate the chemical composition, workability, and splitting tensile strength of the slender concrete beam. The XRD outcomes revealed that the optimal addition of FCBA and GCF in mix can significantly mitigate the pozzolanic activities and create binding effect, thus leading to improving splitting tensile strength by 13.61%. The addition of GCF in concrete mix resulted in enhancement effect to improve the workability of the developed concrete mix by 20.90%. Also, with addition of 10% FCBA and 2% GCF, the flexural strength under four-point bending test showed substantial improvement by 24.50% respectively.

Keywords- Lysimeter, Unaccounted losses, soil EC, Soil pH and Bulk density