Mechanical Properties of Concrete with partial replacement of Coarse aggregates by Coconut Shells and reinforced with Coconut Fibre

Bharat Mandal, Sushant Tiwari, Subid Ghimire, Aasish Tiwari



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

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Aggregate Industries, H & S Department, (2008). Safety Data Sheet. Ashbourne, Derbyshire,: Hullandward ward.

Ahirwar, E. A. K., & Joshi, R. (2015). Experimental Analysis of Fly Ash & Coir Fiber Mix Cement Concrete for Rigid Pavement. International Journal of Engineering Research and Applications, 5(4), 109-120.

Alengaram, U. J., Jumaat, M. Z., & Mahmud, H. (2008). Ductility behaviour of reinforced palm kernel shell concrete beams. European Journal of Scientific Research, 23(3), 406-420.

Ali, M., Liu, A., Sou, H., & Chouw, N. (2012). Mechanical and dynamic properties of coconut fibre reinforced concrete. Construction and Building Materials, 30, 814-825.

Aziz, M. A., Paramasivam, P., & Lee, S. L. (1981). Prospects for natural fibre reinforced concretes in construction. International Journal of Cement Composites and Lightweight Concrete, 3(2), 123-132.

Basri, H. B., Mannan, M. A., & Zain, M. F. M. (1999). Concrete using waste oil palm shells as aggregate. Cement and concrete Research, 29(4), 619-622.

C 496/C 496M – 04. (1996). American Society for Testing and Materials, West Conshohocken: ASTM International.

Center for Disaster Management and Risk Reduction Technology. (2015). Nepal Earthquakes – Report #3. Germany: Institut für Meteorologie und Klimaforschung (IMK-TRO). Retrieved from

Chanap, R. (2012). Study of Mechanical and Flexural Properties of Coconut Shell Ash, Rourkela: National Institute of Technology, Retrieved from:

Filho, R. D., Scrivener, K., England, G. L., & Ghavami, K. (2000). Durability of alkali-sensitive sisal and coconut fibres in cement mortar composites. Cement and concrete composites, 22(2), 127-143.

Gunasekaran, K., Annadurai, R., & Kumar, P. S. (2012). Long term study on compressive and bond strength of coconut shell aggregate concrete. Construction and Building Materials, 28(1), 208-215.

Gunasekaran, K., Annadurai, R., & Kumar, P. S. (2013). Study on reinforced lightweight coconut shell concrete beam behavior under flexure. Materials & Design, 46, 157-167.

Gunasekaran, K., Kumar, P. S., & Lakshmipathy, M. (2011). Mechanical and bond properties of coconut shell concrete. Construction and building materials, 25(1), 92-98.

Gunasekaran, K., Ramasubramani, R., Annadurai, R., & Chandar, S. P. (2014). Study on reinforced lightweight coconut shell concrete beam behavior under torsion. Materials & Design, 57, 374-382.


John, V. M., Cincotto, M. A., Sjöström, C., Agopyan, V., & Oliveira, C. T. A. (2005). Durability of slag mortar reinforced with coconut fibre. Cement and Concrete Composites, 27(5), 565-574.

Kanojia, A., & Jain, S. K. (2017). Performance of coconut shell as coarse aggregate in concrete. Construction and Building Materials, 140, 150-156.

Mannan, M. A., & Ganapathy, C. (2002). Engineering properties of concrete with oil palm shell as coarse aggregate. Construction and Building Materials, 16(1), 29-34.

Mannan, M. A., & Ganapathy, C. (2004). Concrete from an agricultural waste-oil palm shell (OPS). Building and environment, 39(4), 441-448.

Min, F., Yao, Z., & Jiang, T. (2014). Experimental and numerical study on tensile strength of concrete under different strain rates. The Scientific World Journal, Article ID 173531, 11 pages.

Munawar, S. S., Umemura, K., & Kawai, S. (2007). Characterization of the morphological, physical, and mechanical properties of seven nonwood plant fiber bundles. Journal of Wood Science, 53(2), 108-113.

Nagathan, S. J., Jahagirdar, S., Mulla, M., & Katti, S. (2016). Comparative Study on Coconut Shell Aggregate Concrete with Conventional Concrete. International Journal of Civil and Structural Engineering Research, 4(1), 198-202.

Olanipekun, E. A., Olusola, K. O., & Ata, O. (2006). A comparative study of concrete properties using coconut shell and palm kernel shell as coarse aggregates. Building and environment, 41(3), 297-301.

Oluokun, F. (1991). Prediction of concrete tensile strength from its compressive strength: an evaluation of existing relations for normal weight concrete. Materials Journal, 88(3), 302-309.

Ramakrishna, G., & Sundararajan, T. (2005). Studies on the durability of natural fibres and the effect of corroded fibres on the strength of mortar. Cement and Concrete Composites, 27(5), 575-582.

Sivaraja, M., Velmani, N., & Pillai, M. S. (2010). Study on durability of natural fibre concrete composites using mechanical strength and microstructural properties. Bulletin of Materials Science, 33(6), 719-729.

Vishwas, P. K., & Sanjay, K. B. G. (2013). Comparative study on coconut shell aggregate with conventional concrete. International Journal of Engineering and Innovative Technology, 2(12), 67-70.

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Civil Engineering and Architecture Faculty- University Amar Telidji of Laghouat JBMS@2019.