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Nawawi Chouw - One of the best experts on this subject based on the ideXlab platform.

  • investigation of the properties of natural Fibre Reinforced Polymer concrete composite
    2020
    Co-Authors: J. Chen, Y Lv, Z.x. Li, Nawawi Chouw
    Abstract:

    Nowadays, engineers are more aware of the environment and the limited resource. It is also well-known that conventional composites, i.e. Reinforced concrete, will likely have corrosion issue with the time. In addition, steel is heavy. Consequently, under dynamic loadings it can cause a large inertia. To avoid this large mass and corrosion issue this research focuses on the usage of natural Fibre Reinforced Polymer-concrete composite. The Fibres considered are basalt, flax and coconut Fibre. The concrete is enhanced by coconut Fibre, and basalt/flax fabric is used to reinforce the Polymer. The properties of basalt/flax fabric Reinforced Polymer enhanced coconut Fibre Reinforced concrete composite are presented.

  • Effect of thickness on the impact resistance of flax Fibre-Reinforced Polymer
    Journal of Reinforced Plastics and Composites, 2016
    Co-Authors: Wenjie Wang, Nawawi Chouw, Krishnan Jayaraman
    Abstract:

    Impact properties of flax Fibre-Reinforced Polymer composites were investigated using two different impact test methods, i.e. drop-weight test and Charpy test. The drop-weight impact tests were con...

  • dynamic and static properties of flax Fibre Reinforced Polymer tube confined coir Fibre Reinforced concrete
    Journal of Composite Materials, 2014
    Co-Authors: Nawawi Chouw
    Abstract:

    Flax and coir Fibres have the potential to be used as reinforcement in Fibre Reinforced Polymer and concrete, respectively. This study investigates the effect of coir Fibre inclusion and flax Fibre...

  • compressive and flexural behaviour and theoretical analysis of flax Fibre Reinforced Polymer tube encased coir Fibre Reinforced concrete composite
    Materials & Design, 2013
    Co-Authors: Libo Yan, Nawawi Chouw
    Abstract:

    The use of cost-effective natural Fibres, i.e. flax in Fibre Reinforced Polymer composites and coir in concrete as building materials is a step to achieve a sustainable construction. Both flax Fibre Reinforced Polymer tube encased-plain concrete and the tube encased-coir Fibre Reinforced concrete composites have potential to be axial and flexural structural members. However, in flexure, slippage between tube and the concrete core may compromise the performance of the composites. In this study, thin flax Fibre Reinforced Polymer band rings were embedded into the tube inner surface in order to eliminate the slippage because a better tube and concrete interlocking was achieved. Therefore, one purpose of this study is to investigate the effect of band rings on the compressive and flexural properties of flax Fibre Reinforced Polymer tube encased-plain concrete and the tube encased-coir Fibre Reinforced concrete. The ductility of these composites was evaluated using an energy ductility index based on measurement of fracture energy. Next, the cracking strength and neutral axis depth of the composite beams without band rings under flexure were analysed. Finally, based on linear elastic analysis, a simplified analytical method was developed to predict the resisting moment capacities of these composite beams. The test results indicate that in axial compression, the use of band rings reduced the ultimate compressive strength and ductility of both composites. In flexure, the band rings eliminated the slippage but increase the load carrying capacity and deflection. The predicted ultimate moment capacities of these composite beams match the experimental results well.

  • behavior and analytical modeling of natural flax Fibre Reinforced Polymer tube confined plain concrete and coir Fibre Reinforced concrete
    Journal of Composite Materials, 2013
    Co-Authors: Nawawi Chouw
    Abstract:

    As reinforcement flax Fibre has the potential to replace glass Fibre in Fibre-Reinforced Polymer, composite and coir Fibre can be used in concrete. To achieve sustainable construction, this study presents an experimental investigation of a flax Fibre-Reinforced Polymer tube as concrete confinement. Results of 24 flax Fibre-Reinforced Polymer tube-confined plain concrete and coir Fibre-Reinforced concrete cylinders under axial compression are presented. Test results show that both flax Fibre-Reinforced Polymer tube-confined plain concrete and Fibre-Reinforced concrete offer high axial compressive strength and ductility. A total of 23 existing design- and analysis-oriented models were considered to predict the ultimate axial compressive strength and strain of flax Fibre-Reinforced Polymer tube-confined plain concrete and Fibre-Reinforced concrete. It was found that a few existing design- and analysis-oriented models predicted the ultimate strengths of all the flax Fibre-Reinforced Polymer tube-confined plai...

Peter Harryson - One of the best experts on this subject based on the ideXlab platform.

  • bridge decks of Fibre Reinforced Polymer frp a sustainable solution
    Construction and Building Materials, 2014
    Co-Authors: Valbona Mara, Reza Haghani, Peter Harryson
    Abstract:

    Fibre Reinforced Polymer (FRP) bridge decks have become an interesting alternative and they have attracted increasing attention for applications in the refurbishment of existing bridges and the construction of new bridges. The benefits brought by lightweight, high-strength FRP materials to these applications are well recognised. However, the sustainability of bridge concepts incorporating FRP decks still needs to be demonstrated and verified. The aim of this paper is to bridge this knowledge gap by examining the sustainability of these FRP solutions in comparison with traditional bridge concepts. An existing composite (steel–concrete) bridge with a concrete deck that had deteriorated was selected for this purpose. Two scenarios are studied and analysed; the total replacement of the entire bridge superstructure and the replacement of the concrete deck with a new deck made of GFRP. The analyses prove that FRP decks contribute to potential cost savings over the life cycle of bridges and a reduced environmental impact.

Libo Yan - One of the best experts on this subject based on the ideXlab platform.

  • compressive and flexural behaviour and theoretical analysis of flax Fibre Reinforced Polymer tube encased coir Fibre Reinforced concrete composite
    Materials & Design, 2013
    Co-Authors: Libo Yan, Nawawi Chouw
    Abstract:

    The use of cost-effective natural Fibres, i.e. flax in Fibre Reinforced Polymer composites and coir in concrete as building materials is a step to achieve a sustainable construction. Both flax Fibre Reinforced Polymer tube encased-plain concrete and the tube encased-coir Fibre Reinforced concrete composites have potential to be axial and flexural structural members. However, in flexure, slippage between tube and the concrete core may compromise the performance of the composites. In this study, thin flax Fibre Reinforced Polymer band rings were embedded into the tube inner surface in order to eliminate the slippage because a better tube and concrete interlocking was achieved. Therefore, one purpose of this study is to investigate the effect of band rings on the compressive and flexural properties of flax Fibre Reinforced Polymer tube encased-plain concrete and the tube encased-coir Fibre Reinforced concrete. The ductility of these composites was evaluated using an energy ductility index based on measurement of fracture energy. Next, the cracking strength and neutral axis depth of the composite beams without band rings under flexure were analysed. Finally, based on linear elastic analysis, a simplified analytical method was developed to predict the resisting moment capacities of these composite beams. The test results indicate that in axial compression, the use of band rings reduced the ultimate compressive strength and ductility of both composites. In flexure, the band rings eliminated the slippage but increase the load carrying capacity and deflection. The predicted ultimate moment capacities of these composite beams match the experimental results well.

  • effect of bond on compressive behaviour of flax Fibre Reinforced Polymer tube confined coir Fibre Reinforced concrete
    Journal of Reinforced Plastics and Composites, 2013
    Co-Authors: Libo Yan, Anne Duchez, Nawawi Chouw
    Abstract:

    This study investigated the effect of flax Fibre Reinforced Polymer and concrete bond on the compressive behaviour of flax Fibre Reinforced Polymer–confined plain concrete and coir Fibre Reinforced...

  • Effect of bond on compressive behaviour of flax Fibre Reinforced Polymer tube–confined coir Fibre Reinforced concrete
    Journal of Reinforced Plastics and Composites, 2012
    Co-Authors: Libo Yan, Anne Duchez, Nawawi Chouw
    Abstract:

    This study investigated the effect of flax Fibre Reinforced Polymer and concrete bond on the compressive behaviour of flax Fibre Reinforced Polymer–confined plain concrete and coir Fibre Reinforced...

Michael T Heitzmann - One of the best experts on this subject based on the ideXlab platform.

  • Hybrid Fibre-Reinforced Polymer–timber thin-walled structural members:
    Advances in Structural Engineering, 2017
    Co-Authors: Dilum Fernando, Jin-guang Teng, Joseph M. Gattas, Michael T Heitzmann
    Abstract:

    The increasing interest in timber as a sustainable construction material has led to the development of a new type of structures referred to as 'hybrid Fibre-Reinforced Polymer-timber thin-walled structures'. In these structures, thin layers of Fibre-Reinforced Polymer are combined with timber veneers to create high-performance, lightweight and easy-to-construct structural members. This new type of structural members harnesses the orthotropic properties of both timber and Fibre-Reinforced Polymer by appropriately orientating material Fibre directions for optimal composite properties as well as efficient thin-walled cross-sectional shapes. Hybrid Fibre-Reinforced Polymer-timber thin-walled members can be used in many applications such as load-bearing walls, roofs, floor panels and bridge decks. This article describes several novel hybrid Fibre-Reinforced Polymer-timber structural member forms and presents results from a preliminary experimental investigation into the compressive behaviour of hybrid Fibre-Reinforced Polymer-timber wall panels. A comparison of behaviour between a hybrid Fibre-Reinforced Polymer-timber wall panel and a pure timber wall panel is presented to show that the hybrid Fibre-Reinforced Polymer-timber system significantly outperforms the pure timber system in terms of both load resistance and axial strain at failure.

  • Hybrid Fibre-Reinforced Polymer–timber thin-walled structural members:
    Advances in Structural Engineering, 2017
    Co-Authors: Dilum Fernando, Jin-guang Teng, Joseph M. Gattas, Michael T Heitzmann
    Abstract:

    The increasing interest in timber as a sustainable construction material has led to the development of a new type of structures referred to as ‘hybrid Fibre-Reinforced Polymer–timber thin-walled st...

Valbona Mara - One of the best experts on this subject based on the ideXlab platform.

  • bridge decks of Fibre Reinforced Polymer frp a sustainable solution
    Construction and Building Materials, 2014
    Co-Authors: Valbona Mara, Reza Haghani, Peter Harryson
    Abstract:

    Fibre Reinforced Polymer (FRP) bridge decks have become an interesting alternative and they have attracted increasing attention for applications in the refurbishment of existing bridges and the construction of new bridges. The benefits brought by lightweight, high-strength FRP materials to these applications are well recognised. However, the sustainability of bridge concepts incorporating FRP decks still needs to be demonstrated and verified. The aim of this paper is to bridge this knowledge gap by examining the sustainability of these FRP solutions in comparison with traditional bridge concepts. An existing composite (steel–concrete) bridge with a concrete deck that had deteriorated was selected for this purpose. Two scenarios are studied and analysed; the total replacement of the entire bridge superstructure and the replacement of the concrete deck with a new deck made of GFRP. The analyses prove that FRP decks contribute to potential cost savings over the life cycle of bridges and a reduced environmental impact.