Experimental test and finite element modelling prediction on geopolymer concrete beams subject to flexural loading

Hassan, Amer; Arif, Mohammed; Shariq, M.; Alomayri, Thamer

doi:10.1007/s41062-021-00615-9

Cited by 6 publications

(6 citation statements)

References 31 publications

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“…Geopolymer concrete beams have been analyzed numerically by nonlinear finite element analysis (NLFEA) using in-house programs [7] or commercial software packages [8]; the resulting deflections were found to be similar to the experimental results [6][7][8][9][10]. Hassan et al [11] investigated GC beams containing steel fibers experimentally and numerically using the nonlinear finite element analysis software ABAQUS 6.11 [12] and showed that compressive strength and stiffness increased due to the incorporation of steel fibers. [13] showed that GC beams displayed slightly higher deflection for the same amount of load compared to normal concrete beams.…”

Section: Introductionmentioning

confidence: 99%

Flexural Behavior of Steel and FRP-Reinforced Geopolymer Concrete Beams : Numerical Modeling and Analytical Study

Nofal,

Ahmed,

Hamdy

et al. 2023

Engineering Research Journal (Shoubra)

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Geopolymer concrete has developed as an environmentally sustainable construction material the gained importance due to its cement-free production process. This paper presents numerical modeling through nonlinear finite element analysis (NLFEA) of reinforced geopolymer concrete beams as well as an analytical study. The numerical modeling and nonlinear analysis are performed using commercial software ANSYS, made for previously tested geopolymer concrete (GC) beams with main reinforcement bars of steel and glass fiber reinforced polymers (GFRP), and contains two types of dispersed fibers: steel and polypropylene fibers. The numerical results are presented and compared with the published experimental findings. A reasonable correlation between numerical and experimental results is observed, thus validating the efficiency of the modeling methodology for analyzing and designing geopolymer concrete c elements .

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Section: Introductionmentioning

confidence: 99%

Flexural Behavior of Steel and FRP-Reinforced Geopolymer Concrete Beams : Numerical Modeling and Analytical Study

Nofal,

Ahmed,

Hamdy

et al. 2023

Engineering Research Journal (Shoubra)

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“…Thus, Contrary to traditional cement-based concrete, the use of GPC is estimated to potentially reduce energy consumption by 44-64% and reduce carbon emissions by 9-80%. This observation range of emissions reduction is attributed to the intricate nature of emissions calculations, which vary based on numerous factors, such as local conditions, the specific design and transportation mix, and so on [73,[96][97][98]. As an illustration, the geopolymer binder generates CO 2 emissions ranging from 0.184 to 0.218 tons due to the combustion of carbon fuel, in contrast to 1 ton of CO 2 emitted by OPC [99].…”

Section: Introductionmentioning

confidence: 99%

Review of Recent Developments Regarding the Durability Performance of Eco-Friendly Geopolymer Concrete

Alahmari,

Abdalla,

Rihan

2023

Buildings

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The 21st century has witnessed a substantial increase in the demand for construction materials, mainly influenced by the growing population. This increase in demand has resulted in higher prices for these materials and has also placed considerable burdens on environmental resources, prompting the search for eco-friendly and economically viable alternatives such as geopolymer materials to replace traditional materials like cement. The benefits of geopolymer materials as substitutes for cement in concrete extend beyond their exceptional durability. Initially, geopolymer was introduced to address the environmental impact arising from carbon dioxide emissions and the substantial consumption of fossil fuels through the production of cement. The current review investigates recent advances regarding the durability characteristics of geopolymer materials. This includes aspects such as water absorption, temperature resistance, sulfuric acid resistance, sulfate resistance, chloride ion penetration, and freeze–thaw resistance, among others. The results of this review highlight geopolymer concrete’s enhanced durability over traditional cement-based concrete. Furthermore, this review offers recommendations and outlines potential research avenues for further exploration of geopolymer concrete.

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“…Since reinforced concrete walls have a high structural performance, they can effectively limit the building's lateral displacements during a seismic event and minimise the level of damage [5]. Various structural and architectural parameters (such as the height-to-length ratio, the existence of openings, cross-sectional arrangements and materials) highly influence the load-bearing capacity of such elements simultaneously and could also modify their nonlinear behaviour [6,7]. Moreover, in many cases, due to architectural requirements, walls may have complex shapes and require high steel ratios for increased bearing capacity, which increases wall construction time.…”

Section: Introductionmentioning

confidence: 99%

Modelling of Cyclic Load Behaviour of Smart Composite Steel-Concrete Shear Wall Using Finite Element Analysis

et al. 2022

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In recent years, steel-concrete composite shear walls have been widely used in enormous high-rise buildings. Due to their high strength and ductility, enhanced stiffness, stable cycle characteristics and large energy absorption, such walls can be adopted in auxiliary buildings, surrounding the reactor containment structure of nuclear power plants to resist lateral forces induced by heavy winds and severe earthquakes. The current study aims to investigate the seismic behaviour of composite shear walls and evaluate their performance in comparison with traditional reinforced concrete (RC) walls when subjected to cyclic loading. A three-dimensional finite element model is developed using ANSYS by emphasising constitutive material modelling and element type to represent the real physical behaviour of complex shear wall structures. The analysis escalates with parametric variation in reinforcement ratio, compressive strength of the concrete wall, layout of shear stud and yield stress of infill steel plate. The modelling details of structural components, contact conditions between steel and concrete, associated boundary conditions and constitutive relationships for the cyclic loading are explained. The findings of this study showed that an up to 3.5% increase in the reinforcement ratio enhanced the ductility and energy absorption with a ratio of 37% and 38%, respectively. Moreover, increasing the concrete strength up to 55 MPa enhanced the ductility and energy absorption with ratios of 51% and 38%, respectively. Thus, this improves the contribution of concrete strength, while increasing the yield stress of steel plate (to 380 MPa) enhanced the ductility (by a ratio of 66%) compared with the reference model. The present numerical research shows that the compressive strength of the concrete wall, reinforcement ratio, layout of shear stud and yield stress of infill steel plate significantly affect ductility and energy absorption. Moreover, this offers a possibility for improving the shear wall’s capacity, which is more important.

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Experimental test and finite element modelling prediction on geopolymer concrete beams subject to flexural loading

Cited by 6 publications

References 31 publications

Flexural Behavior of Steel and FRP-Reinforced Geopolymer Concrete Beams : Numerical Modeling and Analytical Study

Flexural Behavior of Steel and FRP-Reinforced Geopolymer Concrete Beams : Numerical Modeling and Analytical Study

Review of Recent Developments Regarding the Durability Performance of Eco-Friendly Geopolymer Concrete

Modelling of Cyclic Load Behaviour of Smart Composite Steel-Concrete Shear Wall Using Finite Element Analysis

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