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The growing concern of resource depletion and global pollution has lead to the development of new materials relying on renewable resources. Many by- products are used as aggregate for concrete. Seashell waste which is a major financial and operational burden on the shellfish industry is used as an ingredient in concrete thus offering alternatives to preserve natural coarse aggregate for future generation. Seashell is mainly composed of calcium and the rough texture make it suitable to be used as partial coarse aggregate replacement which provides an economic alternative to the conventional materials such as gravel. Experimental studies were performed on conventional concrete and mixtures of seashell with concrete. The percentage of seashell is varied from 10%, 20% and 30%. Also the cement is replaced for 15% of flyash. The mechanical properties of concrete such as compressive strength, tensile strength, flexural strength, and workability are evaluated. This research helps to access the behavior of concrete mixed with seashell and determination of optimum percentage of combined mixture which can be recommended as suitable alternative construction material in low cost housing delivery especially in coastal areas and near fresh water where they are found as waste.

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S. Manikandasamy, N. Gowsalya, R.Gobi, R. Alageswaran, & P.Karthika. (2021). An experimental study on strength property of concrete by partial replacement of coarse aggregate with seashell and cement with fly ASH. International Journal of Intellectual Advancements and Research in Engineering Computations, 7(2), 1782–1789. Retrieved from