THE EFFECT OF HYBRID STEEL FIBER ON CONCRETE PERFORMANCE
Main Article Content
Abstract
This study is aimed at examining the possible improvements on the fracture properties of concrete containing more than one fibre type. Several mixtures were elaborated in this study. To study the fracture properties and load resistance at various scales, discrete short brass fibres and double-hooked steel fibres were added in concrete. Different types of concrete mixtures were prepared and tested which contained varying proportions of steel and brass fibres up to 0.4% volume fraction. The effects of different hybrid fibre combinations at low and high dosages were investigated for compressive strength, splitting tensile strength and flexural strength. Test results indicated that the different hybrid fibre combinations played a significant crack arresting properties depending upon the fibre properties (size and fibre availability). The presence of steel fibres provided post crack resistance properties whereas the shorter brass fibres delayed the crack origination resulting in significant increase in mechanical strength. The hybrid fibre concretes containing steel fibres (0.3% Vf) and brass fibres (0.2% Vf) showed a consistent increase in the ultimate stress capacity up to 7.75% (in compression) and 37.98% (in fracture strength). Microscopic studies showed the effectiveness of different hybrid fibres during crack formation and subsequent propagation at different loading stresses. The use of steel fiber hybrid offers several economical and technical benefits.
Downloads
Article Details
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0 DEED).
You are free to:
- Share — copy and redistribute the material in any medium or format
- The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
- Attribution — You must give appropriate credit , provide a link to the license, and indicate if changes were made . You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- NonCommercial — You may not use the material for commercial purposes .
- NoDerivatives — If you remix, transform, or build upon the material, you may not distribute the modified material.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
Notices:
You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation .
No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.
Rights of Authors
Authors retain the following rights:
1. Copyright and other proprietary rights relating to the article, such as patent rights,
2. the right to use the substance of the article in future works, including lectures and books,
3. the right to reproduce the article for own purposes, provided the copies are not offered for sale,
4. the right to self-archive the article.
How to Cite
