Abstract
Mixed Recycled Aggregates (MRA) is a mixture of recycled concrete and masonry materials. These kinds of aggregates have lower strength and higher water absorption than natural aggregates. Therefore, the concrete with recycled aggregates has lower strength than the concrete with natural aggregates. Using the steel fibers recovered from waste tires in the concrete with recycled aggregates improves the mechanical properties of this concrete as well as solving the environmental problem of these waste steel wires. In this study, the effect of recycled steel fibers on the mechanical properties of normal concrete and the concrete with recycled aggregate are investigated. Additionally, the effect of fibers on the reduction of concrete pavement thickness is studied. The replacement percentage of natural coarse aggregates with these aggregates is 0, 50 and 100%, with fiber percentage being 0.5 and 1% of concrete volume. Main results indicate that by adding recycled fibers into the concrete with recycled aggregates lead to the production of structural concrete by 50% replacement of aggregates. Moreover, adding recycled fibers by 0.5 and 1% of concrete volume reduces the thickness of concrete pavement for the amount of 8 and 16%, respectively.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
