Mechanical characteristics of ultra-high performance steel FRC made with recycled concrete aggregates
Author | Alnahhal, W. |
Author | Abushanab, A. |
Author | Alnuaimi, N. |
Author | Kahraman, R. |
Author | Sohail, M.G. |
Author | Altayeh, N. |
Available date | 2024-08-08T05:23:22Z |
Publication Date | 2023 |
Publication Name | AIP Conference Proceedings |
Resource | Scopus |
ISSN | 0094243X |
Abstract | Recycled concrete aggregates (RCA) are increasingly becoming a sustainable alternative to natural aggregate (NA) for concrete applications. This study, therefore, tests the influence of RCA on the fresh and hardened mechanical characteristics of six ultra-high performance fiber reinforced concrete (UHPFRC). The steel fibers incorporated were of micro straight and macro hooked end types. The volume fractions considered were 0% and 1%. The evaluation was carried out on the flowability, compressive strength, and flexural tensile strength. It was revealed that the flowability of UHPFRC was slightly affected by the coarse aggregate types. However, the flowability was decreased by 12% to 15% with steel fibers. The results also revealed that at a steel fiber volume fraction of 0%, RCA had little influence on the compressive strength, while they noticeably influenced the flexural tensile strength. In addition, steel fibers were shown to have a more noticeable influence on the specimens with RCA compared to those with NA. Furthermore, the flexural tensile strength of all specimens incorporating steel macro-fibers were significantly improved, regardless of the coarse aggregate type. |
Sponsor | This publication was jointly supported by Qatar University grant no. QUCG-CENG-20/21-3. Moreover, this publication was made possible by GSRA grant GSRA6-1-0509-19022 from the Qatar National Research Fund (QNRF, a member of the Qatar Foundation). The findings achieved herein are solely the responsibility of the authors. |
Language | en |
Publisher | American Institute of Physics Inc. |
Subject | Composite materials Materials properties |
Type | Conference Paper |
Issue Number | 1 |
Volume Number | 2803 |
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Center for Advanced Materials Research [1339 items ]
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Chemical Engineering [1141 items ]
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Civil & Architectural Engineering [767 items ]