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Article

Bending and Shear Behaviour of Waste Rubber Concrete-Filled FRP Tubes with External Flanges

1
University of Southern Queensland, Centre for Future Materials (CFM), Toowoomba, QLD 4350, Australia
2
Tafila Technical University, Department of Civil Engineering, Al Tafila 66110, Jordan
3
University of South Australia, School of Natural & Built Environments, Adelaide, SA 5001, Australia
4
Wagners Composite Fibre Technologies (CFT), Wellcamp, QLD 4350, Australia
5
Monash University, Department of Civil Engineering, Clayton, VIC 3800, Australia
*
Author to whom correspondence should be addressed.
Academic Editor: Enzo Martinelli
Polymers 2021, 13(15), 2500; https://doi.org/10.3390/polym13152500
Received: 30 June 2021 / Revised: 24 July 2021 / Accepted: 25 July 2021 / Published: 29 July 2021
(This article belongs to the Section Polymer Applications)
An innovative beam concept made from hollow FRP tube with external flanges and filled with crumbed rubber concrete was investigated with respect to bending and shear. The performance of the rubberised-concrete-filled specimens was then compared with hollow and normal-concrete-filled tubes. A comparison between flanged and non-flanged hollow and concrete-filled tubes was also implemented. Moreover, finite element simulation was conducted to predict the fundamental behaviour of the beams. The results showed that concrete filling slightly improves bending performance but significantly enhances the shear properties of the beam. Adding 25% of crumb rubber in concrete marginally affects the bending and shear performance of the beam when compared with normal-concrete-filled tubes. Moreover, the stiffness-to-FRP weight ratio of a hollow externally flanged round tube is equivalent to that of a concrete-filled non-flanged round tube. The consideration of the pair-based contact surface between an FRP tube and infill concrete in linear finite element modelling predicted the failure loads within a 15% margin of difference. View Full-Text
Keywords: waste tyres; externally flanged-tube; hollow and concrete-filled tubes; crumbed rubber concrete; composite structures; bending and shear properties waste tyres; externally flanged-tube; hollow and concrete-filled tubes; crumbed rubber concrete; composite structures; bending and shear properties
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MDPI and ACS Style

Ferdous, W.; Manalo, A.; AlAjarmeh, O.S.; Zhuge, Y.; Mohammed, A.A.; Bai, Y.; Aravinthan, T.; Schubel, P. Bending and Shear Behaviour of Waste Rubber Concrete-Filled FRP Tubes with External Flanges. Polymers 2021, 13, 2500. https://doi.org/10.3390/polym13152500

AMA Style

Ferdous W, Manalo A, AlAjarmeh OS, Zhuge Y, Mohammed AA, Bai Y, Aravinthan T, Schubel P. Bending and Shear Behaviour of Waste Rubber Concrete-Filled FRP Tubes with External Flanges. Polymers. 2021; 13(15):2500. https://doi.org/10.3390/polym13152500

Chicago/Turabian Style

Ferdous, Wahid, Allan Manalo, Omar S. AlAjarmeh, Yan Zhuge, Ali A. Mohammed, Yu Bai, Thiru Aravinthan, and Peter Schubel. 2021. "Bending and Shear Behaviour of Waste Rubber Concrete-Filled FRP Tubes with External Flanges" Polymers 13, no. 15: 2500. https://doi.org/10.3390/polym13152500

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