A Study of Compressive and Flexural Strength Analysis of Concrete Cylinder on The Influence of Jute Fiber

Abstract

Concrete is a brittle material which is strong in compression but weak in tension. To improve the behavior of concrete various experiments have been done previously including the use of fibers. As Bangladesh has abundant production of jute, in this study jute fiber was used to observe the changes in mechanical properties of concrete. Mix design was done by conventional way, used in Bangladesh. The effect of various proportion of jute fiber along with the change in water-cement ratio on concrete, was measured by three strength parameters: compressive strength, split tensile strength and flexural strength. All the test procedures were done according to standard ASTM methods. Failure pattern was also observed. From the result obtained from the experiment, it can be stated that 0.20% jute fiber along with water-cement ratio of 0.45 improved the compressive strength. The split tensile strength of concrete was also found maximum for this combination. However, flexural strength was higher at 0.40% fiber dosage with 0.55% water-cement ratio. Concrete, with or without jute fiber underwent similar type of fracture. Jute fiber reduced the cracking level from macro-level to micro level by bridging the cracks.