Abstract
This paper centers around the study of physical and mechanical properties of concrete reinforced with coconut fibre and the coarse aggregates of which are partially replaced with coconut shells. American Concrete Institute (ACI) method has been used to design M20 concrete wherein coconut shells (CS) replaced the coarse aggregates (CA) by 6%, 8%, 10%, 12% and 14% by volume. Under each replacement of CA by CS, coconut fibres were added by 3%, 4% and 5% of cement content. Compressive strength of concrete was found to comply with characteristic strength for certain mixes which avers that the replacements were justifiable for concrete production and thus, the optimum mix for the concrete prepared thereby, would have to be considered accentuating the tensile strength which was actually the one with 10% replacement of CA by CS in terms of volume and 3% addition of coconut fibre. The research vividly evinces a decrease in overall density of the concrete thus prepared. The authors suggest the use of coconut shell and fibre in the production of concrete not only because they impart themselves as viable materials, but their use would also assist to abate the amount of environmental waste.
Highlights
Pertaining to the massive growth in construction industry parallel to growth in population, the use of concrete has been escalating in various forms for infrastructure development
Another significant advantage of concrete as a construction material is its ability to take in other materials which can be used to enhance the overall performance or result in decrease of cost related to production
Coconut Shell (CS)% 6% 8% 10% 12% 14% 6% 8% 10% 12% 14% 6% 8% 10% 12% 14%. It can be clearly observed from the table that 7 out of 15 mixes meet the characteristic strength of 20MPa at 28 days
Summary
Pertaining to the massive growth in construction industry parallel to growth in population, the use of concrete has been escalating in various forms for infrastructure development. Concrete is a composite material abode of aggregates, cement and water held together to form a solid, strong mass that has been used as a robust construction material associating to its remarkable compressive strength, shear strength and pre-stressing properties. Another significant advantage of concrete as a construction material is its ability to take in other materials which can be used to enhance the overall performance or result in decrease of cost related to production. On the grounds of literature study, the authors have used Coconut Shell (CS) as suitable material for partial replacement of coarse aggregate in concrete
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