Behaviour of post-tensioned benches made of high-content recycled aggregate concrete reinforced with racquet string fibres
This study investigates the serviceability and structural behaviour of a new type of recycled aggregate concrete (RAC) bench with waste badminton racquet fibres. Twenty-one cantilever benches were tested in two Series with different fibre volume fractions (Vf = 0%, 0.5%, 1.0% or 1.5%). The RAC had 1...
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| Format: | Article |
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Sustainable Development Press Limited
2024-12-01
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| Series: | Sustainable Structures |
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| author | Narakorn Suwannachote Thanongsak Imjai Fetih Kefyalew Radhika Sridhar Reyes Garcia U. Johnson Alengaram Sivakumar Naganathan |
| author_facet | Narakorn Suwannachote Thanongsak Imjai Fetih Kefyalew Radhika Sridhar Reyes Garcia U. Johnson Alengaram Sivakumar Naganathan |
| author_sort | Narakorn Suwannachote |
| collection | DOAJ |
| description | This study investigates the serviceability and structural behaviour of a new type of recycled aggregate concrete (RAC) bench with waste badminton racquet fibres. Twenty-one cantilever benches were tested in two Series with different fibre volume fractions (Vf = 0%, 0.5%, 1.0% or 1.5%). The RAC had 100% of natural aggregates replaced with recycled concrete aggregate (RCA). The benches in Series II were post-tensioned in flexure using an innovative Post-Tensioned Metal Strapping (PTMS) technique using 1, 2 or 3 straps. Tests were carried out to evaluate 1) static loading behaviour, 2) long-term behaviour after 365 days of sustained loading, and 3) human-induced vibrations. The static test results show that benches with 100% RAC and PTMS had higher capacity (by about 25%) that counterpart benches without PTMS. Hence, the maximum flexural strength of the cantilever bench was improved by 5.7% for the cantilever bench with PTMS strengthening, which further enhanced the flexural behaviour compared to the bench with only 1.5% of fibres. The human-induced vibration test results confirmed that the maximum vibration of the benches met the code limits for floor buildings. Finite element analyses of the RAC benches with PTMS were carried out in Abaqus®, and the experimental deflections agreed well (errors <5%) with the FEM results. A simplified fatigue life analysis confirmed that the RAC benches with PTMS can have a potential service life of up to 20 years. The use of glow-in-the-dark (GID) features into the benches in Series II enhanced their night-time visibility and visual appeal by up to 8 h. This research contributes towards the development of new applications for RAC with waste badminton racquet fibres, which can offer more sustainable solutions for the construction of urban furniture. |
| format | Article |
| id | doaj-art-948f9813fc704d0c942565b3eaec9432 |
| institution | Kabale University |
| issn | 2789-3111 2789-312X |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Sustainable Development Press Limited |
| record_format | Article |
| series | Sustainable Structures |
| spelling | doaj-art-948f9813fc704d0c942565b3eaec94322025-02-01T09:16:18ZengSustainable Development Press LimitedSustainable Structures2789-31112789-312X2024-12-013410.54113/j.sust.2024.000060Behaviour of post-tensioned benches made of high-content recycled aggregate concrete reinforced with racquet string fibresNarakorn Suwannachote0Thanongsak Imjai1Fetih Kefyalew2Radhika Sridhar3Reyes Garcia4U. Johnson Alengaram5Sivakumar Naganathan6School of Languages and General Education, Walailak University, Nakhon Si Thammarat 80161, ThailandSchool of Engineering and Technology, Walailak University, Nakhonsithammarat 80161, ThailandSchool of Engineering and Technology, Walailak University, Nakhonsithammarat 80161, ThailandSchool of Engineering and Technology, Walailak University, Nakhonsithammarat 80161, Thailand Civil Engineering Stream, School of Engineering, The University of Warwick, Coventry, CV4 7AL, UKCentre for Innovative Construction Technology (CICT), Department of Civil Engineering, Faculty of Engineering, Universiti Malaya, 50603, Kuala Lumpur, MalaysiaSchool of Engineering, Sri Sivasubramaniya Nadar (SSN) College of Engineering, Chennai, Tamil Nadu 600020, IndiaThis study investigates the serviceability and structural behaviour of a new type of recycled aggregate concrete (RAC) bench with waste badminton racquet fibres. Twenty-one cantilever benches were tested in two Series with different fibre volume fractions (Vf = 0%, 0.5%, 1.0% or 1.5%). The RAC had 100% of natural aggregates replaced with recycled concrete aggregate (RCA). The benches in Series II were post-tensioned in flexure using an innovative Post-Tensioned Metal Strapping (PTMS) technique using 1, 2 or 3 straps. Tests were carried out to evaluate 1) static loading behaviour, 2) long-term behaviour after 365 days of sustained loading, and 3) human-induced vibrations. The static test results show that benches with 100% RAC and PTMS had higher capacity (by about 25%) that counterpart benches without PTMS. Hence, the maximum flexural strength of the cantilever bench was improved by 5.7% for the cantilever bench with PTMS strengthening, which further enhanced the flexural behaviour compared to the bench with only 1.5% of fibres. The human-induced vibration test results confirmed that the maximum vibration of the benches met the code limits for floor buildings. Finite element analyses of the RAC benches with PTMS were carried out in Abaqus®, and the experimental deflections agreed well (errors <5%) with the FEM results. A simplified fatigue life analysis confirmed that the RAC benches with PTMS can have a potential service life of up to 20 years. The use of glow-in-the-dark (GID) features into the benches in Series II enhanced their night-time visibility and visual appeal by up to 8 h. This research contributes towards the development of new applications for RAC with waste badminton racquet fibres, which can offer more sustainable solutions for the construction of urban furniture.recycled aggregate concreteurban furniturebadminton racquet fibresvibrationsfatigue lifeglow in the dark |
| spellingShingle | Narakorn Suwannachote Thanongsak Imjai Fetih Kefyalew Radhika Sridhar Reyes Garcia U. Johnson Alengaram Sivakumar Naganathan Behaviour of post-tensioned benches made of high-content recycled aggregate concrete reinforced with racquet string fibres Sustainable Structures recycled aggregate concrete urban furniture badminton racquet fibres vibrations fatigue life glow in the dark |
| title | Behaviour of post-tensioned benches made of high-content recycled aggregate concrete reinforced with racquet string fibres |
| title_full | Behaviour of post-tensioned benches made of high-content recycled aggregate concrete reinforced with racquet string fibres |
| title_fullStr | Behaviour of post-tensioned benches made of high-content recycled aggregate concrete reinforced with racquet string fibres |
| title_full_unstemmed | Behaviour of post-tensioned benches made of high-content recycled aggregate concrete reinforced with racquet string fibres |
| title_short | Behaviour of post-tensioned benches made of high-content recycled aggregate concrete reinforced with racquet string fibres |
| title_sort | behaviour of post tensioned benches made of high content recycled aggregate concrete reinforced with racquet string fibres |
| topic | recycled aggregate concrete urban furniture badminton racquet fibres vibrations fatigue life glow in the dark |
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