Effects of partial replacement of cement with supplementary cementious material of palm fiber ash on the properties of concrete
Author(s): Ikri Samuel Obokparo, Okpoko JS and Eritemu Desire Eromosene
Abstract: This study presents an overview of the work done in determining the impacts of palm fiber ash when used in conjunction with cement in the production of concrete. Four distinct percentage replacements were employed (from 0% to 15%). A mix design of 1:2:4 was used. 36 cubes in all were cast, 9 for the standard controls and 9 for each of the replacement percentages from 5 to 15%. All cubes underwent a 7, 14, and 28-day water curing process. The slump test result showed that the workability of the concrete decreased as palm fiber ash increased. The results also indicate that the compressive strength of palm fiber ash concrete increased as the percentage and curing age increased. 5% replacement obtained 7.96N/mm2, 8.31 N/mm2 and 8.83 N/mm2 for 7, 14 and 28 days correspondingly. 10% replacement obtained 7.34 N/mm2, 8.81 N/mm2 and 10.37 N/mm2 at 7, 14 and 28 days respectively. The final replacement percentage (15%) obtained 8.06 N/mm2, 10.66 N/mm2 and 11.17 N/mm2 at 7, 14 and 28 days. The aforementioned replacement was compared to the standard control (0% palm fiber ash) which obtained a compressive strength of 11.23N/mm2, 11.83 N/mm2 and 11.85 N/mm2 for 7, 14 and 28 days respectively. Although the compressive strength decreased when replacements were added, it was discovered that the percentage replacement of 15% produced a compressive strength that was 74.46 percent of the target strength and can be applied for plain concrete cement works. This study demonstrated that palm fiber ash is an effective partial cement material that can help cut down on the waste that the oil refining industries generate, hence reducing environmental pollution and producing concrete for sustainable development.
Ikri Samuel Obokparo, Okpoko JS, Eritemu Desire Eromosene. Effects of partial replacement of cement with supplementary cementious material of palm fiber ash on the properties of concrete. Int J Civ Eng Constr 2023;2(1):26-30.