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Compressive Behaviour of Green Concrete Partially Reinforced with Dry Coconut Shell Aggregates as a Replacement of Coarse Aggregates


Affiliations
1 Assistant Loco Pilot, Lumding division, Northeast Frontier Railway, Brick Field Colony, Qr. No. E/145/B, Lumding, Hojai, Assam - 782 447, India
2 Professor, Department of Applied Mechanics, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, Uttar Pradesh - 211 004, India

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In this work, coconut-shells were reinforced as a partial replacement of the coarse aggregate in concrete to make a lightweight concrete without compromising the properties of concrete. The coconut-shell aggregates with different percentages 5%, 10%, 15%, and 20% of coarse aggregate were added to make coconut-shell cement concrete (M25) along with plain cement concrete without reinforcement of coconut shell aggregates. Main tests on concrete like Vikat test, density computation, and slump test were done. However, the main aim was to investigate the compressive behaviour of concrete. A total of 50 samples (10 cm cubes) were prepared and tested for compressive behaviour on 14th day and compared with that on 28th day. Concrete with 10% coconut-shell produced the best results. The density computation of concrete reveals that reduction in weight of concrete could be achieved appropriately. On the basis of the results, it can be concluded that coconut-shell aggregates with 5% course aggregate could be used for primary construction components. However, other concrete with increased percentage of coarse aggregate could gratify the necessity for secondary construction components.


Keywords

Cement, coconut shell, compressive strength, course aggregate, green concrete.

Manuscript Received : April 28, 2021; Revised : August 12, 2021; Accepted : August 18, 2021. Date of Publication : November 5, 2021.

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  • Compressive Behaviour of Green Concrete Partially Reinforced with Dry Coconut Shell Aggregates as a Replacement of Coarse Aggregates

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Authors

Deepak Kumar
Assistant Loco Pilot, Lumding division, Northeast Frontier Railway, Brick Field Colony, Qr. No. E/145/B, Lumding, Hojai, Assam - 782 447, India
S. J. Pawar
Professor, Department of Applied Mechanics, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, Uttar Pradesh - 211 004, India

Abstract


In this work, coconut-shells were reinforced as a partial replacement of the coarse aggregate in concrete to make a lightweight concrete without compromising the properties of concrete. The coconut-shell aggregates with different percentages 5%, 10%, 15%, and 20% of coarse aggregate were added to make coconut-shell cement concrete (M25) along with plain cement concrete without reinforcement of coconut shell aggregates. Main tests on concrete like Vikat test, density computation, and slump test were done. However, the main aim was to investigate the compressive behaviour of concrete. A total of 50 samples (10 cm cubes) were prepared and tested for compressive behaviour on 14th day and compared with that on 28th day. Concrete with 10% coconut-shell produced the best results. The density computation of concrete reveals that reduction in weight of concrete could be achieved appropriately. On the basis of the results, it can be concluded that coconut-shell aggregates with 5% course aggregate could be used for primary construction components. However, other concrete with increased percentage of coarse aggregate could gratify the necessity for secondary construction components.


Keywords


Cement, coconut shell, compressive strength, course aggregate, green concrete.

Manuscript Received : April 28, 2021; Revised : August 12, 2021; Accepted : August 18, 2021. Date of Publication : November 5, 2021.


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DOI: https://doi.org/10.17010/ijce%2F2022%2Fv5i1%2F170366