Improving Structural Performance of Reinforced Concrete Beams with Phragmites Australis Fiber and Waste Glass Additives
The construction industry has seen a growing emphasis on the use of sustainable materials in recent years. This is driven by various factors, including a desire to reduce environmental impact, improve indoor air quality, and promote the health and well-being of building occupants. One sustainable ma...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/7/4206 |
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| author | Rawan Ramadan Ali Jahami Jamal Khatib Hilal El-Hassan Adel Elkordi |
| author_facet | Rawan Ramadan Ali Jahami Jamal Khatib Hilal El-Hassan Adel Elkordi |
| author_sort | Rawan Ramadan |
| collection | DOAJ |
| description | The construction industry has seen a growing emphasis on the use of sustainable materials in recent years. This is driven by various factors, including a desire to reduce environmental impact, improve indoor air quality, and promote the health and well-being of building occupants. One sustainable material that is being increasingly utilized in construction is natural fibers. Phragmites australis fibers, in particular, are renewable, biodegradable, and have a low carbon footprint. The present study aims to evaluate the impact of Phragmites australis fibers on the behavior of reinforced concrete beams. Five concrete mixes were utilized in the experiment, with the control mix having a 1:1.5:3 ratio of cement to sand to coarse aggregate by weight. The other four mixes incorporated Phragmites australis fibers at 0%, 0.5%, 1%, and 1.5% of the volume of the mix, with cement replaced by 10% glass by weight. The water-to-cement ratio was set at 0.4 for all mixes. Concrete cubes, cylinders, and prisms were prepared to determine mechanical and physical properties, while reinforced concrete beams were used to assess structural performance. The results of the experiment showed that the addition of Phragmites australis fibers slightly decreased the compressive and tensile strength of the concrete compared to the control mix. However, the inclusion of 0.5% Phragmites australis fibers enhanced the split tensile and flexural strength of the concrete. In terms of reinforced concrete beams, the maximum load-bearing capacity was realized for the mix with 10% glass and 0% Phragmites australis fibers. However, the highest ductility index and deflection were achieved for the mix with 10% glass and 0.5% Phragmites australis fibers. Therefore, the use of Phragmites australis fibers can improve the structural performance of concrete. |
| first_indexed | 2024-03-11T05:42:31Z |
| format | Article |
| id | doaj.art-1194c69ac7b948f1b8a8936e07d47474 |
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| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T05:42:31Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-1194c69ac7b948f1b8a8936e07d474742023-11-17T16:17:01ZengMDPI AGApplied Sciences2076-34172023-03-01137420610.3390/app13074206Improving Structural Performance of Reinforced Concrete Beams with Phragmites Australis Fiber and Waste Glass AdditivesRawan Ramadan0Ali Jahami1Jamal Khatib2Hilal El-Hassan3Adel Elkordi4Faculty of Engineering, Beirut Arab University, Beirut P.O. Box 11-5020, LebanonSchool of Engineering, Lebanese American University, Byblos P.O. Box 13-5053, LebanonFaculty of Engineering, Beirut Arab University, Beirut P.O. Box 11-5020, LebanonCollege of Engineering, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab EmiratesFaculty of Engineering, Beirut Arab University, Beirut P.O. Box 11-5020, LebanonThe construction industry has seen a growing emphasis on the use of sustainable materials in recent years. This is driven by various factors, including a desire to reduce environmental impact, improve indoor air quality, and promote the health and well-being of building occupants. One sustainable material that is being increasingly utilized in construction is natural fibers. Phragmites australis fibers, in particular, are renewable, biodegradable, and have a low carbon footprint. The present study aims to evaluate the impact of Phragmites australis fibers on the behavior of reinforced concrete beams. Five concrete mixes were utilized in the experiment, with the control mix having a 1:1.5:3 ratio of cement to sand to coarse aggregate by weight. The other four mixes incorporated Phragmites australis fibers at 0%, 0.5%, 1%, and 1.5% of the volume of the mix, with cement replaced by 10% glass by weight. The water-to-cement ratio was set at 0.4 for all mixes. Concrete cubes, cylinders, and prisms were prepared to determine mechanical and physical properties, while reinforced concrete beams were used to assess structural performance. The results of the experiment showed that the addition of Phragmites australis fibers slightly decreased the compressive and tensile strength of the concrete compared to the control mix. However, the inclusion of 0.5% Phragmites australis fibers enhanced the split tensile and flexural strength of the concrete. In terms of reinforced concrete beams, the maximum load-bearing capacity was realized for the mix with 10% glass and 0% Phragmites australis fibers. However, the highest ductility index and deflection were achieved for the mix with 10% glass and 0.5% Phragmites australis fibers. Therefore, the use of Phragmites australis fibers can improve the structural performance of concrete.https://www.mdpi.com/2076-3417/13/7/4206concretewaste glassPhragmites australiscompressive strengthstructural performanceflexural strength |
| spellingShingle | Rawan Ramadan Ali Jahami Jamal Khatib Hilal El-Hassan Adel Elkordi Improving Structural Performance of Reinforced Concrete Beams with Phragmites Australis Fiber and Waste Glass Additives Applied Sciences concrete waste glass Phragmites australis compressive strength structural performance flexural strength |
| title | Improving Structural Performance of Reinforced Concrete Beams with Phragmites Australis Fiber and Waste Glass Additives |
| title_full | Improving Structural Performance of Reinforced Concrete Beams with Phragmites Australis Fiber and Waste Glass Additives |
| title_fullStr | Improving Structural Performance of Reinforced Concrete Beams with Phragmites Australis Fiber and Waste Glass Additives |
| title_full_unstemmed | Improving Structural Performance of Reinforced Concrete Beams with Phragmites Australis Fiber and Waste Glass Additives |
| title_short | Improving Structural Performance of Reinforced Concrete Beams with Phragmites Australis Fiber and Waste Glass Additives |
| title_sort | improving structural performance of reinforced concrete beams with phragmites australis fiber and waste glass additives |
| topic | concrete waste glass Phragmites australis compressive strength structural performance flexural strength |
| url | https://www.mdpi.com/2076-3417/13/7/4206 |
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