Abstract
In this study, concrete with an addition of natural fibers combination such as sisal, jute and pineapple fibers are added to investigate the characteristics of concrete as trend of fiber usage is increasing. The ratio of water to binder was set to 0.4. Combination of fibers like sisal and pineapple, pineapple and jute, and jute and sisal were added in percentages 0.25 %, 0.5 % and 0.75 % of volume and with lengths of 22 mm and 30 mm.The objective of this study was to explore if natural fibers like sisal, jute, and pineapple in combination can be used to increase structural concrete's mechanical properties of fiber reinforced concrete. Concrete with a fiber combination of sisal and pineapple of 22 mm length at 0.25 %, have the better performance than other combinations of natural fibers.
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