Author : Sandeep Gowda M 1
Date of Publication :7th June 2016
Abstract: The objective of this study is to analyze the effects of steel fibre reinforcement in concrete for different dosages. Concrete mixes were prepared using M30 grade concrete with hooked end steel fibres of aspect ratio 80 (L/D where L=60mm and D=0.75mm) were added at a dosage of 0.25%, 0.5%, 0.75%, and 1.0% to volume fraction of concrete. The flexural strength was determined using a two point loading system. Load v/s deflections graphs were plotted for various percentages of fibre concrete specimens. Test results were compared with plain concrete specimen. From the experimental work it is found that with the increase in the steel fibre content in concrete there is an increase in flexural strength. The flexural strength at 1% steel fibre content is 9.1N/mm2 and the 0% fibre content is 5.78N/mm2 hence increase of 57.43% flexural strength is obtained.
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