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By: Sajal Basua and Suman Pandey.
Department of Civil Engineering, Techno India University, Kolkata, India
Abstract: Concrete is a very versatile construction material, and its demand is growing day by day to meet ongoing construction work. At the same time aggressive impact of concrete materials on environment is also increasing. Concrete is recognised as foundation of our progress allowing us to build the infrastructure of modern life but raising issues like global warming in present day civilisation. This modern growth comes at the cost of a healthy ecological balance. This burning issue is of high priority for maintaining sustainability of entire ecosystem. Hence need for alternate sustainable materials in construction field is very much essential and their development has become extremely urgent in research work. This requirement is further getting intensified due to problems associated with concrete structures, that is formation and development of cracks. Poor flexural and tensile strength of the concrete is the main reason for the same. Present research work is focused on developing concrete resistance against plastic shrinkage cracking and service-related cracking. Natural fibers like Jute have been used for this research work to study the behaviour of concrete. Jute fibers are available in plenty and very cost effective. Also, these are non-toxic and bio degradable in nature. Due to these enlisted features jute fibers are chosen to be mixed with concrete in 1%, 2%, 3% and 4% of weight of concrete. Specimens were prepared for M20, M25 and M30 grade of concrete with W/C ratio = 0.35 and 0.45 respectively. Specimens were tested for tensile strength and flexural strength after 28 days of curing. Comparative analysis of the obtained results was done with tests results of 0% jute fiber concrete. Based on this comparison some important conclusions have been made, which can later be used as guidelines for fiber reinforced concrete mix design.
Citation:
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