Optimizing Concrete Properties Utilizing Marble Waste Powder with Fine Aggregate and Coconut Shell with Coarse Aggregate

The study delves into the innovative utilization of marble waste powder and coconut shell as potential additives in concrete production, aiming to enhance its mechanical and physical properties. By replacing 20% of coarse aggregate with coconut shell and varying the proportion of marble waste powder as replacements for fine aggregate at 25%, 50%, 75%, and 100%, a series of experimental mixes were formulated. Ordinary Portland cement of grade 53 served as the binding agent. Results indicated significant improvements in various engineering properties of the concrete, particularly in cube compressive strength, split tensile strength, and flexural strength. The study underscores the economic and ecological viability of incorporating these waste materials, highlighting their role in augmenting concrete performance while reducing environmental impact. This research contributes to advancing sustainable practices within the construction industry by optimizing material usage and enhancing concrete properties through innovative means. Key Words: Marble waste powder (MWP), Coconut shell (CS), Concrete.