Effect of GFRP and steel reinforcement bars on the flexural behavior of RC beams containing recycled aggregate�
Concrete containing wastes from the demolition of old deteriorated buildings are produced enormously. Concrete is a brittle matrix that is usually reinforced by ductile reinforcement such as steel bars. However, due to the susceptibility of steel to corrosion, fiber-reinforced polymers (FRP) bars ar...
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Gruppo Italiano Frattura
2022-07-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://www.fracturae.com/index.php/fis/article/view/3443/3581 |
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| author | Rasha A. El-Sadany Sherif H. Al-Tersawy Hossam El-Din M. Sallam |
| author_facet | Rasha A. El-Sadany Sherif H. Al-Tersawy Hossam El-Din M. Sallam |
| author_sort | Rasha A. El-Sadany |
| collection | DOAJ |
| description | Concrete containing wastes from the demolition of old deteriorated buildings are produced enormously. Concrete is a brittle matrix that is usually reinforced by ductile reinforcement such as steel bars. However, due to the susceptibility of steel to corrosion, fiber-reinforced polymers (FRP) bars are used as an alternative reinforcement. The main drawback of FRP bars is their brittleness. These two types of reinforcements, i.e., steel and glass FRP (GFRP) bars, have been used in the present work. The flexural behavior of twelve RC beams reinforced with different ratios of GFRP or steel areas containing recycled aggregate has been experimentally studied and compared with beams without recycled aggregate. The present results show that beams reinforced with GFRP and containing recycled aggregate exhibit a lower load-carrying capacity, lower the first crack, and the highest deflection. All GFRP RC beams exhibited brittle failure, i.e., concrete crushing in the compression zone, except one beam, with 2(16 bars and concrete without recycled aggregate, which ruptured GFRP bars. However, ductile failure modes are observed for all beams reinforced with steel bars, i.e., yielding in steel bars followed by concrete failure. The novelty and advantage of the present results are that the large deflection of GFRP RC beams represents enough warning before failure, as found in ductile RC beams |
| format | Article |
| id | doaj-art-f2deafac05eb48c0b6dfd7948de3c1f8 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2022-07-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-f2deafac05eb48c0b6dfd7948de3c1f82025-01-02T22:44:45ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932022-07-01166129430710.3221/IGF-ESIS.61.2010.3221/IGF-ESIS.61.20Effect of GFRP and steel reinforcement bars on the flexural behavior of RC beams containing recycled aggregate�Rasha A. El-SadanySherif H. Al-TersawyHossam El-Din M. SallamConcrete containing wastes from the demolition of old deteriorated buildings are produced enormously. Concrete is a brittle matrix that is usually reinforced by ductile reinforcement such as steel bars. However, due to the susceptibility of steel to corrosion, fiber-reinforced polymers (FRP) bars are used as an alternative reinforcement. The main drawback of FRP bars is their brittleness. These two types of reinforcements, i.e., steel and glass FRP (GFRP) bars, have been used in the present work. The flexural behavior of twelve RC beams reinforced with different ratios of GFRP or steel areas containing recycled aggregate has been experimentally studied and compared with beams without recycled aggregate. The present results show that beams reinforced with GFRP and containing recycled aggregate exhibit a lower load-carrying capacity, lower the first crack, and the highest deflection. All GFRP RC beams exhibited brittle failure, i.e., concrete crushing in the compression zone, except one beam, with 2(16 bars and concrete without recycled aggregate, which ruptured GFRP bars. However, ductile failure modes are observed for all beams reinforced with steel bars, i.e., yielding in steel bars followed by concrete failure. The novelty and advantage of the present results are that the large deflection of GFRP RC beams represents enough warning before failure, as found in ductile RC beamshttps://www.fracturae.com/index.php/fis/article/view/3443/3581recycled aggregatesgfrp barssteel barsrc beam |
| spellingShingle | Rasha A. El-Sadany Sherif H. Al-Tersawy Hossam El-Din M. Sallam Effect of GFRP and steel reinforcement bars on the flexural behavior of RC beams containing recycled aggregate� Fracture and Structural Integrity recycled aggregates gfrp bars steel bars rc beam |
| title | Effect of GFRP and steel reinforcement bars on the flexural behavior of RC beams containing recycled aggregate� |
| title_full | Effect of GFRP and steel reinforcement bars on the flexural behavior of RC beams containing recycled aggregate� |
| title_fullStr | Effect of GFRP and steel reinforcement bars on the flexural behavior of RC beams containing recycled aggregate� |
| title_full_unstemmed | Effect of GFRP and steel reinforcement bars on the flexural behavior of RC beams containing recycled aggregate� |
| title_short | Effect of GFRP and steel reinforcement bars on the flexural behavior of RC beams containing recycled aggregate� |
| title_sort | effect of gfrp and steel reinforcement bars on the flexural behavior of rc beams containing recycled aggregate� |
| topic | recycled aggregates gfrp bars steel bars rc beam |
| url | https://www.fracturae.com/index.php/fis/article/view/3443/3581 |
| work_keys_str_mv | AT rashaaelsadany effectofgfrpandsteelreinforcementbarsontheflexuralbehaviorofrcbeamscontainingrecycledaggregate AT sherifhaltersawy effectofgfrpandsteelreinforcementbarsontheflexuralbehaviorofrcbeamscontainingrecycledaggregate AT hossameldinmsallam effectofgfrpandsteelreinforcementbarsontheflexuralbehaviorofrcbeamscontainingrecycledaggregate |