Flexural Behavior of Rubber-Filled Reinforced Concrete Beams Strengthening with CFRP Sheets
Although there are many advantages to using rubber to produce reinforced concrete substrates, there are still few applications for rubberized concrete substrates like beams, where the mechanical properties of rubber-infused concrete, such as flexural strength, begin to decline. On the other hand, fl...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | E3S Web of Conferences |
| Subjects: | |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/64/e3sconf_icgee2023_02021.pdf |
| _version_ | 1827806711534059520 |
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| author | Adday Adnan A. Ali Ahmed S. |
| author_facet | Adday Adnan A. Ali Ahmed S. |
| author_sort | Adday Adnan A. |
| collection | DOAJ |
| description | Although there are many advantages to using rubber to produce reinforced concrete substrates, there are still few applications for rubberized concrete substrates like beams, where the mechanical properties of rubber-infused concrete, such as flexural strength, begin to decline. On the other hand, flexural strengthening constitutes a sizeable portion of the structural uses for externally carbon fiber reinforced polymer (CFRP) sheets when used to strengthen reinforced concrete beams. For this study's rubberized concrete beams, the externally adhered (CFRP) sheets were used as a substitute for the loss of flexural strength. The study's reinforced concrete beams were split into two groups, each consisting of three beams. The first group's concrete mixture was included as a filler (5) % of the cement weight in the form of waste tire rubber with a size not more than (0.075) mm. Any group of concrete beams always had a first beam without any external reinforcement, a second beam with one layer, and a third beam with two layers of (CFRP) sheet. The results indicate that the load at the first crack increases to be equal to that of the un-rubberized beam when the rubberized reinforced concrete beam is strengthened with one layer of (CFRP) sheets, and it increases by (20%) when reinforced with two layers of (CFRP) sheets. When reinforced with one or two layers, the load at failure rises by 23.58 and 42.75 percent, respectively. The first crack deflection rises by 88.11 and 120.24 percent, while the failure deflection falls by 2.97 and 6.01 percent, respectively. On the (load-deflection) curve, the deflection decreases at symmetrical loads. |
| first_indexed | 2024-03-11T21:46:58Z |
| format | Article |
| id | doaj.art-bc83344427ea43af86a6c9e97827e406 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-03-11T21:46:58Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-bc83344427ea43af86a6c9e97827e4062023-09-26T10:11:59ZengEDP SciencesE3S Web of Conferences2267-12422023-01-014270202110.1051/e3sconf/202342702021e3sconf_icgee2023_02021Flexural Behavior of Rubber-Filled Reinforced Concrete Beams Strengthening with CFRP SheetsAdday Adnan A.0Ali Ahmed S.1Civil Engineering Department, Al-Nahrain UniversityCivil Engineering Department, Al-Nahrain UniversityAlthough there are many advantages to using rubber to produce reinforced concrete substrates, there are still few applications for rubberized concrete substrates like beams, where the mechanical properties of rubber-infused concrete, such as flexural strength, begin to decline. On the other hand, flexural strengthening constitutes a sizeable portion of the structural uses for externally carbon fiber reinforced polymer (CFRP) sheets when used to strengthen reinforced concrete beams. For this study's rubberized concrete beams, the externally adhered (CFRP) sheets were used as a substitute for the loss of flexural strength. The study's reinforced concrete beams were split into two groups, each consisting of three beams. The first group's concrete mixture was included as a filler (5) % of the cement weight in the form of waste tire rubber with a size not more than (0.075) mm. Any group of concrete beams always had a first beam without any external reinforcement, a second beam with one layer, and a third beam with two layers of (CFRP) sheet. The results indicate that the load at the first crack increases to be equal to that of the un-rubberized beam when the rubberized reinforced concrete beam is strengthened with one layer of (CFRP) sheets, and it increases by (20%) when reinforced with two layers of (CFRP) sheets. When reinforced with one or two layers, the load at failure rises by 23.58 and 42.75 percent, respectively. The first crack deflection rises by 88.11 and 120.24 percent, while the failure deflection falls by 2.97 and 6.01 percent, respectively. On the (load-deflection) curve, the deflection decreases at symmetrical loads.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/64/e3sconf_icgee2023_02021.pdfcfrp sheetsbeam strengtheningrubberized concreteflexural behavior |
| spellingShingle | Adday Adnan A. Ali Ahmed S. Flexural Behavior of Rubber-Filled Reinforced Concrete Beams Strengthening with CFRP Sheets E3S Web of Conferences cfrp sheets beam strengthening rubberized concrete flexural behavior |
| title | Flexural Behavior of Rubber-Filled Reinforced Concrete Beams Strengthening with CFRP Sheets |
| title_full | Flexural Behavior of Rubber-Filled Reinforced Concrete Beams Strengthening with CFRP Sheets |
| title_fullStr | Flexural Behavior of Rubber-Filled Reinforced Concrete Beams Strengthening with CFRP Sheets |
| title_full_unstemmed | Flexural Behavior of Rubber-Filled Reinforced Concrete Beams Strengthening with CFRP Sheets |
| title_short | Flexural Behavior of Rubber-Filled Reinforced Concrete Beams Strengthening with CFRP Sheets |
| title_sort | flexural behavior of rubber filled reinforced concrete beams strengthening with cfrp sheets |
| topic | cfrp sheets beam strengthening rubberized concrete flexural behavior |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/64/e3sconf_icgee2023_02021.pdf |
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