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Abstract
The increasing demand for sustainable and environmentally friendly construction materials has prompted the exploration of alternative waste materials for use in concrete production. This study investigates the partial replacement of fine aggregate with periwinkle shell in concrete as a means of reducing construction costs, conserving natural resources, and promoting waste utilization. The research evaluates the effects of incorporating varying percentages of processed periwinkle shell as a substitute for fine aggregate on the properties of concrete.
Concrete mixes were prepared with different replacement levels of fine aggregate using periwinkle shell, while a control mix containing conventional materials was also produced. Standard laboratory tests were conducted to determine the workability, density, compressive strength, and durability characteristics of the concrete specimens. The results indicate that the inclusion of periwinkle shell influences the fresh and hardened properties of concrete. Workability generally decreased with increasing replacement levels, while compressive strength showed acceptable performance at lower replacement percentages. The density of the concrete also reduced, suggesting the potential for producing lightweight concrete.
The findings reveal that periwinkle shell can be effectively utilized as a partial replacement for fine aggregate in concrete production without significantly compromising structural performance when used within optimal replacement limits. The study concludes that the use of periwinkle shell contributes to sustainable construction practices by reducing environmental waste and the dependence on natural sand resources. It is recommended that partial replacement levels within the optimum range be adopted for non-critical and selected structural applications
Concrete mixes were prepared with different replacement levels of fine aggregate using periwinkle shell, while a control mix containing conventional materials was also produced. Standard laboratory tests were conducted to determine the workability, density, compressive strength, and durability characteristics of the concrete specimens. The results indicate that the inclusion of periwinkle shell influences the fresh and hardened properties of concrete. Workability generally decreased with increasing replacement levels, while compressive strength showed acceptable performance at lower replacement percentages. The density of the concrete also reduced, suggesting the potential for producing lightweight concrete.
The findings reveal that periwinkle shell can be effectively utilized as a partial replacement for fine aggregate in concrete production without significantly compromising structural performance when used within optimal replacement limits. The study concludes that the use of periwinkle shell contributes to sustainable construction practices by reducing environmental waste and the dependence on natural sand resources. It is recommended that partial replacement levels within the optimum range be adopted for non-critical and selected structural applications
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