The Strength Behaviour of concrete containing fiber development of coconut fiber concrete

Abstract

This study investigates the effects of adding coconut fiber to concrete. The results shows that coconut fiber does not affect the compressive strength of concrete. The percentages of coconut fiber added to the concrete are 0.1%, 0.15% and 0.5% of the concrete sample weight. The ratio of w/c is varied in the trial mix design, and the best ratio is 0.5. The standard cube size is 150 mm3 and the cubes are cured for 7 days, 14 days and 28 days

     The first aim of this study is to identify the workability of fresh concrete containing additional coconut fiber. The second aim is to determine the ideal amount of coconut fiber added to the concrete mix. The third aim is to investigate the effect of the additional coconut fiber to the compressive strength of the concrete. The compressive strength of the 0.10% coconut fiber concrete recorded the highest compressive strength with 43.63N/mm2 after 28 curing days. The lowest compressive strength of coconut fiber concrete was 25.50N/mm2 for the 0.5% coconut fiber concrete. Concrete with 0.5% generally resulted in the lowest strength compared to 0.10% and 0.15%.