Anu S Das, Ansu V, Megha P, Nithin M Thomas and Sachin A K, Department of Civil Engineering, Government Engineering College Kozhikode, Kerala, India
Building construction, Hollow concrete blocks, Coconut shells, Sustainable development, Environmental protection
Natural building materials are diminishing day by day. Hence economical alternatives of natural building materials are necessary for sustainable development. Hollow concrete block was developed to reduce the use of natural building materials. Agricultural waste products like coconut shells from coconut industry have disposal problems causing environmental concerns. Various studies were done in the past, replacing a portion of the natural aggregates with broken coconut shells for manufacturing the hollow concrete blocks. In this study, we have developed a new method of forming the holes of hollow concrete blocks by placing stacks of half portion of coconut shells at the bottom with convex surface upwards to reinforce the holes by arch action. The results show that the coconut shell reinforced hollow concrete blocks have better strength as compared to open-graded hollow concrete blocks available in the market.
T. S. V. M. Thorat, M. Papal, V. Kacha and S. Gaikwad, “Hollow concrete blocks-A new trend,” International Journal of Engineering & Research, vol. 5, no. 5, pp. 9–26, 2015.
G. Sangeetha, P. Nirmala, D. Pugazhselvi and K. Ramya, “Partial replacement of aggregate by coconut shell and cement by clay,” International Journal of Engineering Science and Computing, vol. 6, no. 4, pp. 3442–3447, 2016.
D. V. N. Kumar, P. M. G. Raju, P. Avinash, G. Rambabu, D. V. N. Kumar, and P. M. G. Raju, “A study on compressive strength of concrete by partial replacement of coarse aggregate with coconut shell and with addition of fiber”, International Journal of Civil Engineering Research, vol. 8, no. 1, pp. 57–68, 2017.
P. S. Kambli and S. R. Mathapati, “Compressive strength of concrete by using coconut shell”, IOSR Journal of Engineering, vol. 4 no. 4, pp. 1–7, 2014.
D. Shradha, F. Hitali, P.Dode and S. Varpe, “Sustainable concrete by partially replacing coarse aggregate using coconut shell”, Journal on Today’s Ideas–Tomorrow’s Technologies, vol. 2, no. 1, pp. 41-54, 2014.
Y. N. Sonawane and C. J. Chitte, “Waste coconut shell as a partial replacement of coarse aggregate in concrete mix-An experimental study”, International Journal of Science and Research, vol. 5, no. 4, pp. 649–651, 2016.
S. A. Tukiman and Mohd. Sabarudin, “Investigate the combination of coconut shell and grained palm kernel to replace aggregate in concrete: A technical review”, in Proceeding of National Conference on Postgraduate Research (NCON-PGR) 2009, 1st October 2009, UMP Conference Hall, Malaysia.
T. U. Ganiron, “Sustainable management of waste coconut shells as aggregates in concrete mixture,” Journal of Engineering Science and Technology Review, vol. 6, no. 5, pp. 7–14, 2013.
T. U. Ganiron, N. Ucol-Ganiron, and T. U. Ganiron III, “Recycling of waste coconut shells as substitute for aggregates in mix proportioning of concrete hollow blocks,” Scientific Publishing House “DARWIN”, pp. 107-123, 2017.