Bond between Fibre-Reinforced Polymer Tubes and Sea Water Sea Sand Concrete: Mechanisms and Effective Parameters: Critical Overview and Discussion

Luck, Johanna Dorothea; Bazli, Milad; Rajabipour, Ali

doi:10.3390/fib10010008

Cited by 22 publications

(4 citation statements)

References 77 publications

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“…Instead, propositions of the addition of synthetic or natural reinforcing materials would increase the mechanical properties of polymers. Luck et al (2022) stated that the use of seawater sea sand concrete (SWSSC) filled fiber reinforced polymer (FRP) tubes offers several benefits, including the prevention of resource shortages and corrosion resistance. Compressive strength and ductility improvements were also evident (Bazli et al, 2021).…”

Section: Tensile Stress-strain Analysismentioning

confidence: 99%

Mechanical Properties of Virgin and Recycled Polymer for Construction Pile Application

Nicholas Kuan,

Yong Lee,

Nee Ting

et al. 2024

JST

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Annual polymer waste generated in Malaysia has increased significantly to more than 1 million tonnes. The prolonged degradation periods required by diverse industrial polymer waste streams are a matter of significant concern, with some taking up to 1000 years to fully degrade. Pursuing a similar environmental concern, the use of bakau piles as supports for lightweight structures in Sarawak, including drainage systems, roads, sewerage, and other water-related structures, has become a matter of concern due to the deforestation of mangrove forests. Both bakau deforestation and polymer waste issues are significant environmental and global concerns. The idea of mitigating mangrove degradation and the non-biodegradable nature of polymer waste has led to the conceptualization of an alternative solution whereby recyclable thermoplastic polymer piles are utilized to supplant bakau piles in providing support for lightweight structures during civil engineering construction projects. Therefore, the study of polymer piles is conducted to examine their mechanical properties in the form of virgin (V) and recycled (R) thermoplastic polymers. In this study, high-density polyethylene (HDPE), polypropylene (PP), and polyvinyl chloride (PVC) are considered, and the possibility of being utilized in pile application has been discussed. Based on the results, all virgin types of thermoplastic polymers (HDPE, PP, and PVC), 50%V:50%R for PP, PP(R), and PVC(R), respectively, exceed the bakau ultimate tensile strength. Thermoplastic polymer piles showed great potential to be the substitution for bakau piles to serve in the construction industry, with the recorded experimental tensile and compressive strength tests.

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Section: Tensile Stress-strain Analysismentioning

confidence: 99%

Mechanical Properties of Virgin and Recycled Polymer for Construction Pile Application

Nicholas Kuan,

Yong Lee,

Nee Ting

et al. 2024

JST

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“…Though the averaging has removed vibrational scatter in the loading an irregularity remains in each plot which can defy an accurate prediction. Despite this, most reports on pull-out testing continue to identify a sequence of failure events within the plot of pull-out load versus fibre slip [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. The first event is the region along a rising curve within which fibre debonding has occurred.…”

Section: Pull-out Tests Of Inclined Fibresmentioning

confidence: 99%

“…Numerous analytical and experimental studies have been carried out to investigate the fibrematrix interfacial properties [10][11][12][13][14][15]. The majority of these investigations have been devoted to study the bond characteristics when fibres are aligned with the loading direction [16,17].…”

Section: Introductionmentioning

confidence: 99%

Upper and Lower Bounds to Pull-Out Loading of Inclined Hooked End Steel Fibres Embedded in Concrete

Rees,

Abdallah

2024

Preprint

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Steel fibre reinforced concrete (SFRC) consists of short hooked steel fibres randomly distributed and oriented within the cementitious matrix. The contribution of fibre in bridging cracks to provide the stress transfer required relies upon the orientation of the fibre in the concrete. Bridging fibre aligned with a crack are less effective than those inclined to it. Therefore, understanding the pull-out behaviour of misaligned fibre is a key factor to quantify and optimize the design of SFRC in the structural applications. In the laboratory a single oriented fibre embedded in a solid cylinder of concrete is subjected to a pull-out test where the axis of a tensile force is aligned with the axis of the cylinder. Based upon the observed behaviour this paper presents a new analytical bounding approach to capture the pull-out response of misaligned hooked-end steel fibre embedded in a concrete matrix. The analysis is based upon a transversely isotropic condition assumed for the plasticity that occurs in the cold drawn fibre. The model accounts for the influence of fibre diameter and the combined strengths of the steel and concrete. The model predictions have also been compared with other experimental results published in the literature. The results showed that the model can predict pull-out loads reasonably for different fibre orientations between bounds of failure derived from the strengths of the two constituents. A critical orientation is observed at maximum strength. Therein, an understanding of the pull-out behaviour of misaligned, hooked-end fibres is necessary to optimize the strength of concrete from this method of reinforcement.

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“…It is well-known that, in harsh environments, carbon steel tubes are highly susceptible to being corroded after prolonged contact with acid rain, seawater, and other aggressive agents [ 38 , 133 ]. To address such concerns, corrosion-resistant FRP tubes filled with concrete have recently been employed [ 134 , 135 , 136 ].…”

Section: Frp-rc Structural Membersmentioning

confidence: 99%

Fibre-Reinforced Polymer Reinforced Concrete Members under Elevated Temperatures: A Review on Structural Performance

et al. 2022

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Several experimental and numerical studies have been conducted to address the structural performance of FRP-reinforced/strengthened concrete structures under and after exposure to elevated temperatures. The present paper reviews over 100 research studies focused on the structural responses of different FRP-reinforced/strengthened concrete structures after exposure to elevated temperatures, ranging from ambient temperatures to flame. Different structural systems were considered, including FRP laminate bonded to concrete, FRP-reinforced concrete, FRP-wrapped concrete, and concrete-filled FRP tubes. According to the reported data, it is generally accepted that, in the case of insignificant resin in the post curing process, as the temperature increases, the ultimate strength, bond strength, and structure stiffness reduce, especially when the glass transition temperature Tg of the resin is approached and exceeded. However, in the case of post curing, resin appears to preserve its mechanical properties at high temperatures, which results in the appropriate structural performance of FRP-reinforced/strengthened members at high temperatures that are below the resin decomposition temperature Td. Given the research gaps, recommendations for future studies have been presented. The discussions, findings, and comparisons presented in this review paper will help designers and researchers to better understand the performance of concrete structures that are reinforced/strengthened with FRPs under elevated temperatures and consider appropriate approaches when designing such structures.

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Bond between Fibre-Reinforced Polymer Tubes and Sea Water Sea Sand Concrete: Mechanisms and Effective Parameters: Critical Overview and Discussion

Cited by 22 publications

References 77 publications

Mechanical Properties of Virgin and Recycled Polymer for Construction Pile Application

Mechanical Properties of Virgin and Recycled Polymer for Construction Pile Application

Upper and Lower Bounds to Pull-Out Loading of Inclined Hooked End Steel Fibres Embedded in Concrete

Fibre-Reinforced Polymer Reinforced Concrete Members under Elevated Temperatures: A Review on Structural Performance

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