keywords: Jute Yawn concrete, reinforcing bar, British Standard
Concrete is poor in tension and it is usually reinforced with reinforcing bars within tensile zone to prevent collapse and cracking. These reinforcing steels are very expensive and are susceptible to corrosion when exposed to adverse environment. Hence, effort to reduce dependency on steel reinforcing bars in concrete is a welcoming development. In this study, jute yarn, that is an agricultural by-product and abundantly available is investigated in order to determine its impact on the mechanical strength characteristics of concrete. Compressive, split tensile and flexural strength of concrete were investigated at 0.1, 0.25 and 0.50% percentage content of jute yawn addition at varying lengths of 12, 14 and 16 mm. The optimum compressive strength was attained at 0.1% jute yawn of 14 mm length, while the optimum split tensile and flexural strength were obtained at 12 mm jute length and at 0.1% content. The optimum strengths for compressive, split tensile and flexural are 35.49, 3.14 and 4.06 N/〖mm〗^2, respectively.
AS 1012 2002. Compressive test of concrete specimen, Methods of testing concrete, Standards Australia. Aziz MA, Paramasivam P & Lee SL 1981. Prospects for natural fibre reinforced. Int. J. Cem. Comp. Lightweight Concrete, 3(2): 123–132. Bezerra E, Joaquim A & Savastano H Jr 2004. Some Properties of Fibre–Cement. In: NOCMAT conference 2004. Pirassununga, Brasil, pp. 1–11. Chakraborty S, Kundu SP, Roy A, Basak RK, Adhikari B & Majumder SB 2013. Improvement of the mechanical properties of jute fibre reinforced cement mortar: A statistical approach. Constr. Build Mat., 38: 776–784. Jarabo R, Fuente E, Monte MC, Savastano H, Mutjé P & Negro C 2012. Use of cellulose fibers from hemp core in fiber-cement production. Effect on flocculation, retention, drainage and product properties. Ind. Crops Prod., 39(1): 89–96. Mansur M & Aziz M 1982. A study of jute fibre reinforced cement composites. Int. J. Cem. Comp. Lightweight Concr., 4(2): 75–82. Meddaha MS & Bencheikh M 2009. Properties of concrete reinforced with different kinds of industrial waste fibre materials. Constr Build Mat., 23: 3196–3205. Pooja Warke & Shrinkhala Dewangan 2016. Evaluating the performance of jute fiber in concrete. J. Trend in Res. & Devt. (IJTRD), 3(3). Ramakrishna G & Sundararajan T 2005. Impact strength of a few natural fibre reinforced cement mortar. Cem. Concr. Comp., 27(5): 547–553. Savastano H, Santos S, Radonjic M & Soboyejo W 2009. Fracture and fatigue of natural fiber-reinforced cementitious composites. Cem. Concr. Comp. 31(4): 232–243. Xie YJ, Hill CA, Xiao Z, Militz H & Mai C 2010. Silane coupling agents used for natural fiber polymer composites: a review. Comp. Part A Appl. Sci. Manuf., 41: 806 – 819. Zakaria Mohammad, Mozammel Hoque, Md. Abdul Hannan & Abdul Hannan 2015. Effect of jute yarn on the mechanical behaviour of concrete composites. SpringerPlus, 4: 731, DOI 10.1186/s40064-015-1504-7.