Effect of wood black charcoal powder as cement replacement and carbon fiber textile on the physicomechanical properties of bio-concrete

This study investigates the effect of wood black charcoal powder (WBCP) as a partial cement (C) replacement and carbon fiber textile on concrete. The objective is to explore the potential benefits of these additions on the properties of the concrete. Sixty concrete cubes and 30 concrete cylinders were prepared for this analysis. Fifteen concrete cylinders were wrapped with carbon fiber textiles, serving as an external reinforcement. The concrete cubes were cured for days 7, 14, and 28 based on the individual procedure. The cement-wood black charcoal powder (C-WBCP) 3 concrete paste had the highest slump value of 20 mm and the compressive strength (fc) of the concrete cubes were higher at C-WBCP 2 concrete with 29.37 N/mm2 with C-WBCP 1 concrete being next at day 28 of curing. The test results proved that C-WBCP 2 concrete cylinders wrapped with carbon fiber textile exhibited improved fc with 34 N/mm2 as the highest on day 28 of curing. It was observed that the density of concrete decreased with the addition of WBCP and a reduction in the cement percentage. Also, the C-WBCP concrete wrapped with carbon fiber textile proved to have a reduced density when compared with the unwrapped C-WBCP concrete. The workability of concrete is affected by the incorporation of the WBCP.