scholarly journals Modelling glass fibre-reinforced polymer reinforced geopolymer concrete columns

Structures ◽  
2019 ◽  
Vol 20 ◽  
pp. 813-821 ◽  
Author(s):  
Minhao Dong ◽  
Weena Lokuge ◽  
Mohamed Elchalakani ◽  
Ali Karrech
Keyword(s):  
Glass Fibre ◽  
Concrete Columns ◽  
Geopolymer Concrete ◽  
Reinforced Polymer ◽  
Glass Fibre Reinforced Polymer ◽  
Fibre Reinforced Polymer ◽  
Glass Fibre Reinforced

Behaviour of geopolymer concrete-filled pultruded GFRP short columns

2019 ◽  
Vol 53 (18) ◽  
pp. 2555-2567 ◽  
Author(s):  
Weena Lokuge ◽  
Rajab Abousnina ◽  
Nilupa Herath
Keyword(s):  
Glass Fibre ◽  
Geopolymer Concrete ◽  
Load Carrying Capacity ◽  
Reinforced Polymer ◽  
Glass Fibre Reinforced Polymer ◽  
Load Carrying ◽  
Fibre Reinforced Polymer ◽  
Glass Fibre Reinforced ◽  
Polymer Tube ◽  
Polymer Tubes

This research paper presents the results of an experimental investigation on the axial compressive behaviour of 24 geopolymer concrete-filled glass fibre-reinforced polymer tubes. The test variables considered are the compressive strength of geopolymer concrete (30 MPa and 35 MPa) and the shape of the cross section (square, circular and rectangular). All the glass fibre-reinforced polymer tubes had the same amount of fibres and similar fibre orientation together with the same aspect ratio. The failure of the square and rectangular columns initiated with the splitting of the corners and resulted in a lower load-carrying capacity compared to the circular columns whose failure was initiated by the crushing of glass fibre-reinforced polymer tube followed by the separation of glass fibre-reinforced polymer tube into strips. It can be concluded that axial load-carrying capacity of square and rectangular sections can be improved by a concrete filler with higher compressive strength. Adopted finite element analysis to simulate the behaviour of the columns is capable of predicting the stress–strain behaviour and the mode of failure.

Material and glass-fibre-reinforced polymer bond properties of geopolymer concrete

2020 ◽  
Vol 72 (10) ◽  
pp. 509-525 ◽  
Author(s):  
Minhao Dong ◽  
Wei Feng ◽  
Mohamed Elchalakani ◽  
Gang Kevin Li ◽  
Ali Karrech ◽  
...  
Keyword(s):  
Glass Fibre ◽  
Geopolymer Concrete ◽  
Bond Properties ◽  
Reinforced Polymer ◽  
Glass Fibre Reinforced Polymer ◽  
Fibre Reinforced Polymer ◽  
Glass Fibre Reinforced

Performance of variously shaped glass-fibre-reinforced polymer bars in concrete columns

2021 ◽  
pp. 1-40
Author(s):  
Afaq Ahmad ◽  
Mohamed Elchalakani ◽  
Muhammad Iqbal ◽  
Yimou Huang ◽  
Guowei Ma
Keyword(s):  
Glass Fibre ◽  
Failure Modes ◽  
Limit State ◽  
Concrete Columns ◽  
Ultimate Limit State ◽  
Reinforced Polymer ◽  
Glass Fibre Reinforced Polymer ◽  
Fibre Reinforced Polymer ◽  
Glass Fibre Reinforced ◽  
Bar Buckling

An investigation was carried out into the structural performance of concrete columns reinforced with various shapes of glass-fibre-reinforced polymer bars and stainless-steel stirrups under concentric loading at ultimate limit state. Six square-section columns were cast to investigate the effects of different reinforcement types. The results showed failure modes depended on reinforcement material, shape and stirrup spacing. Across all specimens, steel-reinforced columns had higher loading capacity and better ductile performance, followed by L-shape and then round polymer bars. Smaller spiral spacing increased confinement efficiency and ductility and provided sufficient restraint against longitudinal polymer bar buckling. Finite-element models were also calibrated, and the results were in close agreement with experimental measurements. Based on the calibrated models, numerical parameters were studied to understand further the behavior of composite columns reinforced with glass-fibre-reinforced polymer.

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