Author(s): FLORES S. JOHN LLOYD, FRANCISCO JAY ELIAS,MAGBANUA V. MARK JHON, RELADO B. JANE LYNETTE,VICENTE F. G
Adviser: ROWENA P/ROSELO, M.Eng. CHURCHI F. ISMAEL, M.Eng. CE
Year: 2023
Community: College of Civil Engineering and Architecture
Abstract: OVEN-DRIED EGGSHELL POWDER AS PARTIAL REPLACEMENT FOR CEMENT IN CONCRETE John Lloyd S. Flores, Jay Elias Francisco, Mark John V. Magbanua, Jane Lynette B. Relado, Glenden Mae F. Vicente 68 ABSTRACT This study addressed the growing problem of environmental pollution caused by waste eggshells. The researchers proposed using eggshell powder as partial replacement for cement in concrete production, with the aim of reducing waste and improving the compressive strength of concrete. To investigate the effectiveness of this approach, the researchers evaluated the workability and compressive strength of concrete samples with varying percentages of eggshell powder. The results showed that the replacement of 5% eggshell powder improved the compressive strength of the concrete, while higher percentages (10% and 15%) had a negative impact on strength. The workability of the concrete was also affected by the addition of eggshell powder. The researchers concluded that eggshell powder can be an effective partial replacement for cement in concrete production but in this study, the concrete can only be applied to non-load bearing structures. It is recommended in this study that careful consideration must be given to the percentage used to achieve optimal results, and a further study must be conducted to determine at what percentage where the compressive strength of the concrete started to increase and decrease.