A comparative study on the mechanical properties of concrete by substituting cement with sugarcane bagasse ash

Abstract

This research study compares the mechanical properties of concrete by substituting Sugarcane Bagasse Ash (SCBA) at various weight ratios for Ordinary Portland Cement (OPC) and Portland Composite Cement (PCC). The study was mainly concerned with determining the consistency, setting time, workability, compressive strength, and split tensile strength of concrete mixes containing different percentages of SCBA. Three replacement scenarios were considered into account: 0% SCBA (control sample), 5% SCBA, and 10% SCBA, which would have replaced both OPC and PCC. Various tests were conducted according to relevant standards to evaluate the performance of the concrete mixes. The results revealed that replacing 10% of OPC with SCBA performed better than replacing PCC and the control samples. Higher compressive strength and split tensile strength were among the improved mechanical characteristics of the concrete mixtures with 10% SCBA. These results show the possibility of using SCBA as a partial cement substitute to enhance the overall performance of concrete, especially when replacing OPC. This research offers important insights into sustainable construction practices by identifying SCBA as a feasible cementitious material with favorable economic and environmental effects. The results may assist researchers and concrete experts in optimizing the use of SCBA in concrete mix designs to achieve desired mechanical properties and enhance sustainability in the construction industry.