Concrete with a High Content of End-of-Life Tire Materials for Flexural Strengthening of Reinforced Concrete Structures
This research investigates the performance of Steel Fiber Reinforced Rubberized Concrete (SFRRC) that incorporates high volumes of End-of-life tire materials, (i.e., both rubber particles and recycled tire steel fibers) in strengthening existing reinforced concrete (RC) beams. The mechanical and dur...
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| Format: | Article |
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MDPI AG
2022-09-01
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| Online Access: | https://www.mdpi.com/1996-1944/15/17/6150 |
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| author | Thomaida Polydorou Nicholas Kyriakides Andreas Lampropoulos Kyriacos Neocleous Renos Votsis Ourania Tsioulou Kypros Pilakoutas Diofantos G. Hadjimitsis |
| author_facet | Thomaida Polydorou Nicholas Kyriakides Andreas Lampropoulos Kyriacos Neocleous Renos Votsis Ourania Tsioulou Kypros Pilakoutas Diofantos G. Hadjimitsis |
| author_sort | Thomaida Polydorou |
| collection | DOAJ |
| description | This research investigates the performance of Steel Fiber Reinforced Rubberized Concrete (SFRRC) that incorporates high volumes of End-of-life tire materials, (i.e., both rubber particles and recycled tire steel fibers) in strengthening existing reinforced concrete (RC) beams. The mechanical and durability properties were determined for an environmentally friendly SFRRC mixture that incorporates a large volume (60% by volume aggregate replacement) of rubber particles and is solely reinforced by recycled tire steel fibers. The material was assessed experimentally under flexural, compressive and impact loading, and thus results led to the development of a numerical model using the Finite Element Method. Furthermore, a numerical study on full-scale structural members was conducted, focusing on conventional RC beams strengthened with SFRRC layers. This research presents the first study where SFRRC is examined for structural strengthening of existing RC beams, aiming to enable the use of such novel materials in structural applications. The results were compared to respective results of beams strengthened with conventional RC layers. The study reveals that incorporation of End-of-life tire materials in concrete not only serves the purpose of recycling End-of-life tire products, but can also contribute to unique properties such as energy dissipation not attained by conventional concrete and therefore leading to superior performance as flexural strengthening material. It was found that by incorporating 60% by volume rubber particles in combination with recycled steel fibers, it increased the damping ratio of concrete by 75.4%. Furthermore, SFRRC was proven effective in enhancing the energy dissipation of existing structural members. |
| first_indexed | 2024-03-10T01:33:23Z |
| format | Article |
| id | doaj.art-3838f817d00e464bb4e716a07b7c733f |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T01:33:23Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-3838f817d00e464bb4e716a07b7c733f2023-11-23T13:36:28ZengMDPI AGMaterials1996-19442022-09-011517615010.3390/ma15176150Concrete with a High Content of End-of-Life Tire Materials for Flexural Strengthening of Reinforced Concrete StructuresThomaida Polydorou0Nicholas Kyriakides1Andreas Lampropoulos2Kyriacos Neocleous3Renos Votsis4Ourania Tsioulou5Kypros Pilakoutas6Diofantos G. Hadjimitsis7Department of Civil Engineering and Geomatics, Cyprus University of Technology, Limassol 3036, CyprusDepartment of Civil Engineering and Geomatics, Cyprus University of Technology, Limassol 3036, CyprusSchool of Architecture, Technology and Engineering, University of Brighton, Brighton BN2 0JY, UKDepartment of Civil Engineering and Geomatics, Cyprus University of Technology, Limassol 3036, CyprusDepartment of Civil Engineering and Geomatics, Cyprus University of Technology, Limassol 3036, CyprusSchool of Architecture, Technology and Engineering, University of Brighton, Brighton BN2 0JY, UKDepartment of Civil and Structural Engineering, The University of Sheffield, Sheffield S10 2TN, UKDepartment of Civil Engineering and Geomatics, Cyprus University of Technology, Limassol 3036, CyprusThis research investigates the performance of Steel Fiber Reinforced Rubberized Concrete (SFRRC) that incorporates high volumes of End-of-life tire materials, (i.e., both rubber particles and recycled tire steel fibers) in strengthening existing reinforced concrete (RC) beams. The mechanical and durability properties were determined for an environmentally friendly SFRRC mixture that incorporates a large volume (60% by volume aggregate replacement) of rubber particles and is solely reinforced by recycled tire steel fibers. The material was assessed experimentally under flexural, compressive and impact loading, and thus results led to the development of a numerical model using the Finite Element Method. Furthermore, a numerical study on full-scale structural members was conducted, focusing on conventional RC beams strengthened with SFRRC layers. This research presents the first study where SFRRC is examined for structural strengthening of existing RC beams, aiming to enable the use of such novel materials in structural applications. The results were compared to respective results of beams strengthened with conventional RC layers. The study reveals that incorporation of End-of-life tire materials in concrete not only serves the purpose of recycling End-of-life tire products, but can also contribute to unique properties such as energy dissipation not attained by conventional concrete and therefore leading to superior performance as flexural strengthening material. It was found that by incorporating 60% by volume rubber particles in combination with recycled steel fibers, it increased the damping ratio of concrete by 75.4%. Furthermore, SFRRC was proven effective in enhancing the energy dissipation of existing structural members.https://www.mdpi.com/1996-1944/15/17/6150rubberized concreterecycled steel fibersrubber aggregateEnd-of-life tire materialsstrengthening |
| spellingShingle | Thomaida Polydorou Nicholas Kyriakides Andreas Lampropoulos Kyriacos Neocleous Renos Votsis Ourania Tsioulou Kypros Pilakoutas Diofantos G. Hadjimitsis Concrete with a High Content of End-of-Life Tire Materials for Flexural Strengthening of Reinforced Concrete Structures Materials rubberized concrete recycled steel fibers rubber aggregate End-of-life tire materials strengthening |
| title | Concrete with a High Content of End-of-Life Tire Materials for Flexural Strengthening of Reinforced Concrete Structures |
| title_full | Concrete with a High Content of End-of-Life Tire Materials for Flexural Strengthening of Reinforced Concrete Structures |
| title_fullStr | Concrete with a High Content of End-of-Life Tire Materials for Flexural Strengthening of Reinforced Concrete Structures |
| title_full_unstemmed | Concrete with a High Content of End-of-Life Tire Materials for Flexural Strengthening of Reinforced Concrete Structures |
| title_short | Concrete with a High Content of End-of-Life Tire Materials for Flexural Strengthening of Reinforced Concrete Structures |
| title_sort | concrete with a high content of end of life tire materials for flexural strengthening of reinforced concrete structures |
| topic | rubberized concrete recycled steel fibers rubber aggregate End-of-life tire materials strengthening |
| url | https://www.mdpi.com/1996-1944/15/17/6150 |
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