Composite reinforcing systems for precast hollow concrete slabs
Paper
Paper/Presentation Title | Composite reinforcing systems for precast hollow concrete slabs |
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Presentation Type | Paper |
Authors | Al-Fakher, Usama Hilo, Manalo, Allan, Aravinthan, Thiru and Edoo, Azam |
Journal or Proceedings Title | Proceedings of the 7th Asia-Pacific Conference on FRP in Structures (APFIS 2019) |
Year | 2019 |
Place of Publication | Australia |
ISBN | 9780648752899 |
Conference/Event | 7th Asia-Pacific Conference on FRP in Structures (APFIS 2019) |
Event Details | 7th Asia-Pacific Conference on FRP in Structures (APFIS 2019) Parent Asia-Pacific Conference on FRP in Structures Delivery In person Event Date 10 to end of 13 Dec 2019 Event Location Brisbane, Australia |
Abstract | An innovative hollow GFRP reinforcement (SR) system has been recently developed by Composite Reinforcement Solutions (CRS). The SR system has four outer flanges to provide better mechanical connections to the surrounding concrete and would also reduce the weight of RC panels, since the hollow part leads to less consumption of concrete. In cooperation with the University of Southern Queensland (USQ), the flexural performance of the SR system has been investigated. The study investigates the flexural behaviour of four slabs reinforced with the SR and with different section configurations, i.e. a solid slab, a slab with 3 hollow-core, a slab with 3-SR, and a slab with 3-epoxy coated SR. All slabs had an overall thickness of 175 mm thick, reinforced with 12 mm diameter steel bars at the top and bottom spaced at 200 mm. The results demonstrated that the solid and hollow slab behaved similarly due to the compressive stress in the concrete is above the voids. On the other hand, the slab reinforced with the SR system had twice the capacity to that of the solid RC slabs. This indicates that the thickness of this slab can be further reduced to carry the same load carried by solid RC slabs but at a significantly lower weight and a reduction in concrete material. Overall, this study demonstrated that the SR system is a beneficial technology and is suitable for hollow precast concrete slabs and other concrete applications. |
Keywords | Concrete slabs; Flexural behavior; Hollow composite reinforcing systems |
Contains Sensitive Content | Does not contain sensitive content |
Public Notes | There are no files associated with this item. |
Byline Affiliations | Centre for Future Materials |
Composite Reinforcement Solutions, Australia |
https://research.usq.edu.au/item/x8zq0/composite-reinforcing-systems-for-precast-hollow-concrete-slabs
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