American Journal of Civil Engineering and Architecture
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American Journal of Civil Engineering and Architecture. 2017, 5(5), 208-216
DOI: 10.12691/ajcea-5-5-5
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Mechanical Properties and Fracture Behaviour of Coconut Fibre Reinforced Concrete (CFRC)

Amaziah Walter Otunyo1, and Nnodi Dan Nyechieo1

1Department of Civil Engineering, Rivers State University, Nkpolu, Port Harcourt, Nigeria

Pub. Date: November 29, 2017

Cite this paper:
Amaziah Walter Otunyo and Nnodi Dan Nyechieo. Mechanical Properties and Fracture Behaviour of Coconut Fibre Reinforced Concrete (CFRC). American Journal of Civil Engineering and Architecture. 2017; 5(5):208-216. doi: 10.12691/ajcea-5-5-5


The effect of coconut fibre content on the mechanical properties and fracture behavior of reinforced concrete was studied. The mix design used for the plain concrete and the coconut fibre reinforced concrete was based on 1:2:4 for cement: sand and coarse aggregate. Water/cement ratio used was 0.6. The coconut fibre was added as reinforcement principally to check the propagation of cracks. The composites developed by adding 6%, 8%, 10% and 12% coconut fibre (by weight) , mixing and curing. Plain concrete was cats and cured and used as control. Composites were cured for 7, 14 and 28 days. It was observed that the composite with 6% of coconut fibre demonstrated the highest compressive, flexural and split tensile strengths when compared to the control.

coconut fibre cement concrete compressive strength flexural strength split tensile strength workability slump

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[1]  L.K. Aggarwal, “Studies on cement-bonded coir fibre boards,” Cem .Concr. Composite., Vol. 14. No. 1, pp. 63-72, 1992.
[2]  S.K, Al-Oraimi, and A.C. Seibi, “Mechanical characterization and impact behavior of concrete reinforced with natural fibres”, Compos Struct, Vol. 32, No. 1, pp 164-71, 1995.
[3]  M. A. Aziz, P. Paramasivam, S.L.Lee, “Concrete reinforced with natural fibres”, New Reinf. Concr, pp 106-40, 1984.
[4]  E. Corradini, I.C. De Morais, M.F. De Rosa, S. E. Mazetto, L.H.C. Mattoso, J.A.M. Agnelli, “A Preliminary study for the use of of natural fibres as reinforcement in starch-gluten-glycerol matrix,” Macromol Symp, pp. 245-246; 558-622, 2006.
[5]  J.E.Fernandez, “Flax Fibre reinforced concrete – a natural fibre biocomposite for sustainable building materials,” High Perform Structural Material, Vol. 4, pp. 193-207, 2002.
[6]  P.A. Flower, J.M. Hughes and R. Melias, “Review bio composites: technology environmental credentials and market forces,”. Journal of Science Food Agric; Vol. 86, pp. 1781-1790, 2006.
[7]  B.I.M Mwamila, “Natural twines as main reinforcements in concrete beams,” International Journal of Cement and Lightweight Concrete, Vol. 7, No. 1, pp.11-20, 1985.
[8]  H.S. Ramaswamy, B. M. Ahuja, S. Krishamoorthy, “Behaviour of concrete reinforced with jute, coir and bamboo fibres,” International Journal of Cement Composites Lightweight concrete, Vol. 5, No.1, pp. 3-13, 1983.
[9]  K.M.M Rao,K.M Rao, “Extraction and tensile properties of natural fibres: vakka date and bamboo.” Composite Structure, Vol. 77, No. 3, pp. 288-383, 2007.
[10]  F.R.D Toledo, K. Ghavami, and G.IEngland, “Free restrained and drying shrinkage of cement mortar composites reinforced with vegetable fibres.” Cement Concrete Composite, Vol. 27, No. 5, pp. 537-4563, 2005.
[11]  F.O. Slate, “Coconut fibres in concrete, “Engineering Journal Singapore, Vol. 3, No.1; pp. 51-55, 1976.
[12]  D.J Cook, R.P. Pama, and H.L.S.D Weerasingle, “Concrete Fibre reinforced cement as a low cost roofing material,” Building Environment, Vol. 13, No. 3, pp. 193-201 1978.
[13]  M.A. Aziz, P. Paramasivam, and S.L. Lee, “Prospects for natural fibre reinforced concretes in construction,” International Journal of Cement Composites Lightweight Concrete. Vol. 3, No.2, pp. 123-154, 1981.
[14]  N.C. Das Gupta, P. Paramasivam, S.L.Lee, “Mechanical properties of coir reinforced cenment pastes composites,” Housing Science, Vol. 2, No.5, pp. 391-406, 1978.
[15]  N.C Das Gupta, P. Paramasivam, S.L Lee, “Coir reinforced cement pastes composites,” International Conference Proceedings of our world in concrete and structures; pp. 111-6, 1979.
[16]  P. Paramasivam, G.K Nathan, and N.C.Das Gupta, “Coconut fibre reinforced corrugated slabs,” International Journal of Cement Composite Lightweight Concrete, Vol. 6, No.1, pp. 19-27, 1984.
[17]  V. Agopyan, H. Savastano, Jr, V.M. John, and M.A. Cincotto, “Developments on vegetable fibre-cement based materials in Sao Paula, Brazil. An overview,” Cement Concrete Compos, Vol. 27, No.5, pp. 527-533, 2005.
[18]  V.M. John, M.A. Cincotto, C. Sjostrom, V. Agopyan, C.T.A. Oliveira, “Durability of slag mortar reinforced with coconut fibre,” Cement Concrete Composites, Vol. 27, No. 5, pp. 5645-5719. 2005.
[19]  J.P. Luisito, J.M.M. Neil, N.Rolendio, - Coconut%20fibre%20cement%20boards pdf:2005[accessed 02.12.20]..
[20]  H.B.M.H. Mohammad, “Coconut fibre reinforced wall paneling system,” Master Thesis. Faculty of Civil Engineering, University Teknologi, Malaysia: 2005.
[21]  G. Ramakrishna and T. Sundararajan, “Studies on the durability of natural fibres and the effect of corroded fibres on the strength of mortar,” Cement Concrete Composites, Vol 27, No. 5, pp. 575-657, 2005.
[22]  Z. Li, L. Wang and X.Wang, “Flexural characteristics of coir fibre reinforced cementitious composites,” Fibre Polym, Vol., 7, No. 3, pp.286-380, 2006.
[23]  J.M.L Reis, “Fracrure and flexural characterization of natural fibre –reinforced polymer concrete,” Construction Building Materials, Vol 20, No. 9, No. 3, pp. 673-681, 2006.
[24]  C. Asasatjant, J. Hirunlabh, J. Khedari, S. Charoenvai, J. Seghmati, J. Khedari, S. Charoenvai, B. Zeghmati, and U.C.Shim, “Develepment of coir based lightweight cement board,” Constrution Building Material, Vol. 21, No. 2, pp. 277-365, 2007.
[25]  O.P.Baruah and S.A.Talukdar, “A comparative study of compressive, flexural, tensile and shear strength of concrete with fibres of different origins,” Indian Concrete Journal, Vol. 81, No. 7, pp. 17-24, 2007.
[26]  Z. Li, L. Wang,and X. Wang, “Cement composites reinforced with surface modified coir fibres,” Journal of Composite Materials, Vol. 41, No. 12, pp. 1445-1502, 2007.
[27]  A. Majid, L.Anthony, S. Hou, S. and C. Nawawi, “Mechanical and dynamic properties of coconut fibre reinforced concrete,” Construction and Building Materials, Vol. 30, pp.814-825, 2012.
[28]  S. Spadea, I. Farina, V.P. Beradi, F. Dentale and F. Fraternalli. “Energy dissipation capacity of concrete reinforced with recycled PET Fibres’”. Ingegneria Sismica, Vol. 31 No. 2, pp. 61-70, 2014.
[29]  M. Ali, “Role of post-tensioned coconut fibre ropes in mortar-free interlocking concrete construction during seismic loadings,” KSCE Journal of Civil Engineering, pp. 1-8. Article in Press, 2017.
[30]  W. Wang and N. Chouw, “The behavior of coconut fibre reinforced concrete (CFRC) under impact loading,” Construction and Building Materials, Vol. 134, pp. 452-462, 2017.
[31]  R.H., Lumingkewas, A. Husen and R. Andrianus, “Effect of fibres length and fibres content on the splitting tensile strength of coconut fibres reinforced concrete composites,”Key Engineering Materials, Vol. 748, pp. 311-315, 2017.
[32]  M.I.V. Prasad, P. Saha and P.R. Kumar, “Self compacting reinforced concrete beams strengthened with natural fibre under cyclic loading” Computers and Concrete, Vol. 17, No.5, pp. 597-612, 2016.
[33]  BS 12; - Specification for Portland Cement. British Standards Institute, London, United Kingdom, 1996.
[34]  BS 882; - Specification for aggregates from natural sources for concrete. British Standards Institute, London United Kingdom, 1992.
[35]  BS 3148; - Methods of test for water for making concrete. British Standards Institute, London, United Kingdom, 1980.
[36]  BS 812-103.2 – Testing of aggregates. Method of determination of Particle size. British Standards Institute, London, United Kingdom, 1989.
[37]  BS EN 12390-3; Testing hardened concrete. Compressive Strength of test Specimen. British Standards Institute, London, United Kingdom, 2006.
[38]  BS EN 12390-5; Testing hardened concrete. Flexural Strength of test Specimen. British Standards Institute, London, United Kingdom, 2000.
[39]  BS EN 12390-6 Testing hardened concrete. Tensile Splitting Strength of test Specimen. British Standards Institute, London, United Kingdom, 1983.
[40]  BS EN 196-3- Method of Testing Cement. Determination of Setting Time and Soundness. British Standards Institute, London, United Kingdom, 1995.
[41]  BS EN 12350-2; Testing of Concrete. Method for determination of slump. British Standards Institute, London, United Kingdom, 2009.