Cracking behavior of sea sand RC beam bonded externally with CFRP plate

Al-Fakih, Amin; Hashim, Mohd Hisbany Mohd; Alyousef, Rayed; Mutafi, Ayad; Sabah, S.H. Abo; Tafsirojjaman, T.

doi:10.1016/j.istruc.2021.05.042

Cited by 19 publications

(9 citation statements)

References 36 publications

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“…The authors observed that RC beams constructed with recycled concrete coarse aggregate failed due to longitudinal steel yielding and concrete crushing in the compression zone. In accordance with the load-deflection relationship of beams at the mid span, more beam strength capacity may reduce the deflection [20].…”

Section: Results and Discussion 31 Flexural Performancementioning

confidence: 73%

Experimental Validation of Reinforced Concrete Beam Incorporating Coal Fly Ash and Coal Bottom Ash Using Numerical Analysis

Nasrudin,

Ariffin,

Alias

et al. 2023

IJIE

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The environmental deterioration affected by the disposal of Coal Bottom Ash (CBA) from power stations has worsened as the energy demand has increased. In addition, the increased demand for concrete leads to an increase in aggregate consumption, which contributing to the depletion of natural resources. To prevent the immense amount of CBA waste and the destruction of natural resources, an initiative has been implemented to replace aggregate with CBA in concrete. The Reinforced Concrete (RC) beams underwent a four-pointbending test. The test was done after 28 days of curingage. Therefore, this study was conducted to study the performance of RC beam incorporating CBA as fine and coarse aggregate replacement. The deflection, maximum load and cracking pattern of RC beam were determined. Beam with 100% coarse coal bottom ash 100% fine coal bottom ash resulted to the maximum load at 88 kN with maximum deflection at 18.87 mm. The RC beams were redesigned using the three-dimensional nonlinear simulation software ABAQUS in enable to identify and compare the simulation and experimental findings. The FEA result shows that ultimate load of FEA waswithin 5% range with the experimental results. The simulation results demonstrated that the proposed finite element model accurately predicted the RC beam’s damage behaviour.

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Section: Results and Discussion 31 Flexural Performancementioning

confidence: 73%

Experimental Validation of Reinforced Concrete Beam Incorporating Coal Fly Ash and Coal Bottom Ash Using Numerical Analysis

Nasrudin,

Ariffin,

Alias

et al. 2023

IJIE

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“…Zhou et al [ 33 ] added fibers as reinforcement in coral concrete and obtained a reduction in the cracks in the concrete, which also changed the bond–slip curve. Similarly, Al-Fakih et al [ 34 ] conducted a study on CFRP plates incorporated with sea sand concrete and bonded to RC beams incorporating sea sand bonded with CFRP plates. The results were the DF for all the specimens; however, the CFRP plate increased the stiffness and cracking performance.…”

Section: Research Progressmentioning

confidence: 99%

Experimental Studies and Application of Fiber-Reinforced Polymers (FRPs) in Civil Infrastructure Systems: A State-of-the-Art Review

Albuja-Sánchez,

Damián-Chalán,

Escobar

2024

Polymers

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The application of FRPs in civil infrastructure has increased, particularly in the last 20 years. FRPs have gained importance because of their resistance to harsh environments, high strength-to-weight ratio, and good corrosion resistance, and they are faster and easier to apply than other traditional methods. The rehabilitation of structures is the main area in which FRPs have been developed, because they have allowed for compliance with architectural restraints in historic structures. This review is a compilation of the research conducted on the laboratory and field applications of FRPs, highlighting the different applied methods, installation difficulties, and failure modes of FRPs. Moreover, this review compares studies on the types of fibers such as CFRPs, GFRPs, and AFRPs, and their effects would affect the mechanical properties of civil infrastructure and the durability characteristics of civil infrastructure in challenging environmental conditions. In addition, this review focuses on the modification of the mechanical properties of structural elements using different methods of installing FRPs, including externally bonded reinforcement (EBR), and their main problem: debonding failure before the ultimate load.

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“…CFRP strengthening has been shown to increase the stiffness and strength performance of flexural members. It is currently a widespread strengthening methodology for RC members with a variety of applications, for example, the strengthening of sea sand RC members [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Assessment of fib Bulletin 90 Design Provisions for Intermediate Crack Debonding in Flexural Concrete Elements Strengthened with Externally Bonded FRP

Barris

Jahani

et al. 2023

Polymers

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With the assessment of intermediate crack debonding (ICD) being a subject of main importance in the design of reinforced concrete (RC) beams strengthened in flexure with externally bonded fibre-reinforced polymer (FRP), several approaches to predict the debonding loads have been developed in recent decades considering different models and strategies. This study presents an analysis of formulations with different levels of approximation collected in the fib Bulletin 90 regarding this failure mode, comparing the theoretical predictions with experimental results. The carried-out experiments consisted of three RC beams strengthened with carbon FRP (CFRP) tested under a four-point bending configuration with different concrete strengths and internal steel reinforcement ratios. With failure after steel yielding, higher concrete strength, as well as a higher reinforcement ratio, lead to a higher bending capacity. In addition, the performance of the models is assessed through the experimental-to-predicted failure load ratios from an experimental database of 65 RC beams strengthened with CFRP gathered from the literature. The results of the comparative study show that the intermediate crack debonding failure mode is well predicted by all models with a mean experimental-to-predicted failure load ratio between 0.96 and 1.10 in beams tested under three- or four-point bending configurations.

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Cracking behavior of sea sand RC beam bonded externally with CFRP plate

Cited by 19 publications

References 36 publications

Experimental Validation of Reinforced Concrete Beam Incorporating Coal Fly Ash and Coal Bottom Ash Using Numerical Analysis

Experimental Validation of Reinforced Concrete Beam Incorporating Coal Fly Ash and Coal Bottom Ash Using Numerical Analysis

Experimental Studies and Application of Fiber-Reinforced Polymers (FRPs) in Civil Infrastructure Systems: A State-of-the-Art Review

Assessment of fib Bulletin 90 Design Provisions for Intermediate Crack Debonding in Flexural Concrete Elements Strengthened with Externally Bonded FRP

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