Abstract
The objective of the study is to investigate the effect of introducing jute yarn on the mechanical properties of concrete. Jute fibre is produced abundantly in Bangladesh and hence, very cheap. The investigation on the enhancement of mechanical properties of concrete with jute yarn as reinforcement, if enhanced, will not only explore a way to improve the properties of concrete, it will also explore the use of jute and restrict the utilization of polymer which is environmentally detrimental. To accomplish the objective, an experimental investigation of the compressive, flexural and tensile strengths of Jute Yarn Reinforced Concrete composites (JYRCC) has been conducted. Cylinders, prisms and cubes of standard dimensions have been made to introducing jute yarn varying the mix ratio of the ingredients in concrete, water cement ratio, length and volume of yarn to know the effect of parameters as mentioned. Compressive, flexural and tensile strength tests had been conducted on the prepared samples by appropriate testing apparatus following Standards of tests. Mechanical properties of JYRCC were observed to be enhanced for a particular range of lengths of cut (10, 15, 20 and 25 mm) and volume content of jute yarn (0.1, 0.25, 0.5 and 0.75 %). The maximum increment of compressive, flexural and tensile strengths observed in the investigation are 33, 23 and 38 %, respectively with respect to concrete without jute yarn.
Highlights
The necessity of sustainable, non-hazardous and cost effective materials in the construction industry is inevitable
Tests were conducted to evaluate the effect of jute yarn and results are presented diagrammatically in figures (Figs. 4, 5, 6, 7, 8, 9)
It is to mention that 0 % yarn content represents that no yarn was mixed which indicates plain concrete
Summary
The necessity of sustainable, non-hazardous and cost effective materials in the construction industry is inevitable. Concrete being popularly used all over the world is characterised by low strength-strain capacity in tension, and low fracture toughness. To overcome the shortcomings of plain concrete (PC), the use of reinforcing fibre has been found very effective (Thakur et al 2014; Balaguru and Shah 1992; Barr et al 1996; Meddaha and Bencheikh 2009; Rizkalla and Hassan 2002). Among two different types of fibres i.e., natural fibres and artificial polymer based fibres, natural fibres are promising to use as reinforcement to overcome the inherent deficiencies in FRCC reinforced with polymer based fibre (Ramakrishna and Sundararajan 2005).
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