Evaluating the effects of flexure cracking behaviour of beam reinforced with steel fibres from environment affect

• Main Authors: Ahmad J., Al-Dala'ien R.N.S., Manan A., Zaid O., Ahmad M.
• Other Authors: 57204028162
• Format: Article
• Published: Alpha Publishers 2023

Concrete is among the most rapidly consuming material on earth and has huge impact on the environment directly in term of utilization of natural occurring materials and leading cause for green gases emission. Concrete is brittle material and weak in tension combine with brittle performance of concrete end in abrupt tensile failure with no warning. This is not acceptable for any material used in construction. Thus, concrete need some type of tensile reinforcement to balance its fragile performance & enhance its tensile strength. The basic objective of this study is to increase the ductility of concrete to offset its undesirable brittle nature and also to find the characteristics of concrete by using steel fibre in proportion 0%,1%, 2%, 3%, and 4% for 1:2:4 concrete with w/c 0.5.Slump, Compressive, split tensile strength and flexure tests were performed after 7 days & 28 days of curing. Load-deflection relations, cracks number, maximum crack width, & First cracking load load-deflection inter-relations were studied to determine the flexural cracking performance of concrete beams. From results it has been concluded that, strength was increased up to 2% addition of steel fiber and then decrease gradually. Moreover, the flexural crack width was considerably decreased with adding of steel fibers. The outcome also displayed that the maximum load & first cracking load are raised with adding of SFs. � 2020 Alpha Publishers.All rights reserved.