Abstract: The rising cost of construction material is a matter of concern. The reason for increase in cost is high demand of concrete and scarcity of raw material. Hence the concrete technologists must search for some economical alternative to the coarse aggregate. In this study, M20 grade of concrete was produced by replacing coarse aggregate by coconut shell aggregate of 12mm-10mm. Thirty six cubes were casted and their compressive strength and density evaluated at 7 & 28 days. The compressive strength of concrete reduced as the percentage replacement increased. Concrete produced by 0% 20% 30% 40% 50% and 60% replacement attained 7 days compressive strength of 20.89, 16.89, 16.00, 14.74, 10.67, 9.19, and 28 days 24.89, 19.85, 18.07, 16.37, 13.78, 12.74 respectively. These results showed that Coconut shell concrete can be used in reinforced concrete construction. Its utilization is cost effective and eco-friendly.
Keywords: Coarse Aggregate, Coconut Shell, Compressive Strength, Density, Waste Utilization.
Title: Comparative Study on Coconut Shell Aggregate Concrete with Conventional Concrete
Author: Prof. S.J.Nagathan, Sarfraj Jahagirdar, Matiurrehman Mulla, Shruti Katti
International Journal of Civil and Structural Engineering Research
ISSN 2348-7607 (Online)
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