Investigating the feasibility of using recycled fibres instead of industrial fibres in shotcrete
DOI:
https://doi.org/10.17794/rgn.2025.1.7Keywords:
fibres, compressive strength, tensile strength, modulus of elasticity, shotcreteAbstract
Shotcrete is one of the standard systems used in the tunnelling industry, including cement, sand, water, and additives. Adding fibres to shotcrete is a method to enhance its mechanical properties. This study is laboratory research investigating the feasibility of using recycled steel fibres instead of industrial fibres and the effect of adding industrial and recycled fibres on the mechanical properties of shotcrete. For this research, laboratory samples were created using industrial steel fibres and recycled steel fibre types 1 and 2 sourced from worn tires. Laboratory samples include cubic and cylindrical samples with 12 mixing designs. These 12 mixing designs are plain shotcrete, shotcrete containing 1, 2, and 5 percent industrial steel fibres, shotcrete containing 0.5, 1, 1.5, and 2 percent type 1 recycled fibre, and shotcrete containing 0.5, 1, 1.5, 2 percent type 2 recycled fibres. Laboratory tests include compressive strength, tensile strength, and modulus of elasticity for durations of 3, 7, and 28 days. According to the results, adding industrial and recycled fibres to the shotcrete composition improves the resistance properties of shotcrete, and recycled fibres can replace industrial fibres.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2024 Shahla Miri Darmarani, Erfan Khoshzaher, Hamid Chakeri , Rahman Mirzaei
This work is licensed under a Creative Commons Attribution 4.0 International License.
Creative Commons-BY
Authors who publish with this journal agree to the following terms:
In agreeing this form, you certify that:
- You read the ethical codex of the RGN zbornik available at journal web.
- You submitted work is your original work, and has not previously been published and does not include any form of plagiarism.
- You own copyright in the submitted work, and are therefore permitted to assign the licence to publish to RGN zbornik.
- Your submitted work contains no violation of any existing copyright or other third party right or any material of an obscene, libellous or otherwise unlawful nature.
- You have obtained permission for and acknowledged the source of any illustrations, diagrams or other material included in the work of which you are not the copyright owner.
- You have taken due care to ensure the accuracy of the work, and that, to the best of your knowledge, there are no false statements made within it.
- All co-authors of this submitted work are aware of, and in agreement with, the terms of this licence and that the submitted manuscript has been approved by these authors.
Publication licence
You retain copyright in your submitted work, according to journal license policy (CC-BY). By signing this form you agree that RGN zbornik may publish it under the publication licence. In summary the licence allows the following:
Anyone is free:
- To copy, distribute, display, and perform the work.
- To make derivative works.
Under the following conditions:
- The original author must always be given credit.
- The work may not be used for commercial purposes.
- If the work is altered, transformed, or built upon, the resulting work may only be distributed under a licence identical to this one.
Exceptions to the licence
In addition to publishing the work printed under the above licence, RGN zbornik will also enable the work to be visible online.
The journal editorial can change the licence rules anytime but it cannot retroactively restrict author(s) rights.
