The effect of openings on the performance of self-compacting concrete with volcanic pumice powder and different steel fibers

Abdullah, Gamil M.S.; Alshaikh, Ibrahim M.H.; Zeyad, Abdullah M.; Magbool, Hassan M.; Bakar, B.H. Abu

doi:10.1016/j.cscm.2022.e01148

Cited by 21 publications

(4 citation statements)

References 41 publications

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“…Concrete consists of various ingredients, including cement, aggregates (fine and coarse), water, and some additives and it is widely used as a building material in the civil engineering applications such as dams, bridges, and roads (Shukla, 2013;Vieira et al, 2016;Seetharam et al, 2017;Alabi, 2020;Prabu et al, 2020;Zeyad, 2020;Alwesabi et al, 2021;Magbool and Zeyad, 2021;Ming et al, 2021;Abdullah et al, 2022;Adil et al, 2022;Zeyad et al, 2022). However, it has many shortcomings such as brittleness and low tensile strength.…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of fiber-reinforced concrete produced with steel fibers extracted from waste tire

Zeybek

Özkılıç²,

Çelik³

et al. 2022

Front. Mater.

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With the increasing number of vehicles in the world, the amount of waste tires is increasing day by day. In this case, the disposal of expired tires will cause serious environmental problems. In recent years, instead of disposing of tire wastes, most of them have been started to be recycled to produce fiber-reinforced concrete. Thus, steel fibers recovered from waste tires have been preferred as an alternative to industrial steel fibers due to their environmentally friendly and low-cost advantages. In this study, an experimental study was carried out to explore the effect of fiber content on the fresh and hardened state of the concrete. To achieve this goal, compression, splitting tensile, and flexure tests were carried out to observe the performance of the concrete with tire-recycled steel fibers with the ratios of 1%, 2% and 3%. There is an improvement in the mechanical properties of the concrete with the increase of the volume fraction of the steel fiber. However, a significant reduction in workability was observed after the addition of 2% steel fibers. Therefore, it is recommended to utilize 2% tire-recycled steel fibers in practical applications. Furthermore, experimental results of concrete with tire-recycled steel fibers were collected from the literature and empirical equations based on these results were developed in order to predict the compressive and splitting tensile strengths.

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Section: Introductionmentioning

confidence: 99%

Performance evaluation of fiber-reinforced concrete produced with steel fibers extracted from waste tire

Zeybek

Özkılıç²,

Çelik³

et al. 2022

Front. Mater.

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“…Gencel et al [35] observed that the steel fibres of length 30 mm increased the splitting tensile strength of SCC when used in different proportions. Experimental investigations by GamilM S Abdullah et al [36] and Zemir et al [37] also confirm that incorporation of steel fibres is better in improving the ductility, tensile strength, and performance under dynamic loading in SCC.…”

Section: Significance Of Steel Fibres In Sccmentioning

confidence: 79%

A comprehensive study on physico-mechanical properties of non-metallic fibre reinforced SCC blended with metakaolin and alcofine

Vivek

Karthikeyan

Selvaraj

et al. 2022

Mater. Res. Express

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This study presents a detailed experimental investigation on the effects incorporating non-metallic fibers in hybrid form in self-compacting concrete (SCC). In this regard SCC was prepared with Alccofine and Metakaolin as partial replacement for cement in 15% and 20% respectively along with the hybrid fibre combinations namely abaca fibres (0.25%, 0.5% & 0.75%), polypropylene fibres (0.5%, 1%, 1.5% & 2%) and glass fibres (0.5%, 1%, 1.5%, & 2%). The fresh properties of SCC with and without hybrid fibre combinations were assessed through the standard tests such as slump flow, J ring and V-funnel tests. The conventional mechanical tests such as compressive strength test, split tensile strength test and flexural strength test were performed at 7 and 28 days. The experimental results reveal that the fresh properties of SCC were highly influenced by alccofine and Metakaolin adopted in this research. Furthermore, that the hybrid combination of abaca with polypropylene and glass fibres improved the mechanical properties of SCC and in particular the mix with 1% glass fibre and 0.25% Abaca fibre had shown better flexural and tensile strength behaviour. Microstructure analyses were also done to confirm the improvement in mechanical properties. The Scanning Electron Microscope images of the mix with 1% glass fibre and 0.25% abaca fibre showed less voids presence and presence of more hydrated components conveying that the usage of hybrid fibres had restricted the propagation of cracks there by reducing the percentage of voids and the use of metakaolin and alcofine helping in forming hydrated components at earlier stage leading to better strength.

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“…One proposed solution to enhance the performance of reinforced concrete structures is the incorporation of different additive fibers and powders [3,4] Notably, polypropylene fibers and steel fibers have been introduced in various forms to the construction industry in recent decades, and their effectiveness has been scrutinized in research endeavors. The utilization of concrete additive fibers has yielded results that include augmenting the ultimate strength, stiffness, and seismic resilience of reinforced concrete frames [5]. Furthermore, these fibers can influence crack patterns and safeguard structures against deterioration from environmental factors like corrosion, frost, and fire [6].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Investigation of the Seismic Performance of RC Moment Resisting Frames

Esfandiari,

Roudsari,

Esfandiari

2024

Period. Polytech. Civil Eng.

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The rehabilitation of concrete structures has been a subject of extensive investigation, exploring various facets. One such avenue involves the incorporation of fiber additives into concrete materials. In parallel, the construction of reinforced concrete structures inevitably encounters construction errors, necessitating constant efforts from researchers to devise solutions for mitigating their impact. In the context of this research, a series of experiments was conducted involving the construction and testing of five reinforced concrete moment-resisting frames. The initial sample served as the control, while two additional samples were integrated with polypropylene and metal fibers. The subsequent two samples deliberately introduced a manufacturing error through the application of air-entraining admixture materials at the beam-to-column connection. This deliberate error aimed to assess the influence of additive fibers on frames affected by manufacturing errors. Several critical parameters were subjected to evaluation, including ultimate strength, stiffness, ductility, energy dissipation capacity, and strength reduction factor. The results of these assessments demonstrated that the utilization of additive fibers contributes to an enhanced overall performance of the frames, as inferred from the aforementioned seismic parameters. Furthermore, it was established that the incorporation of these additive fibers substantially alleviates the impact of manufacturing errors on moment-resisting reinforced concrete frames. Although a significant reduction in energy dissipation capacity was observed in samples with manufacturing errors, the other seismic parameters remained relatively unaffected. Subsequently, numerical models were generated in ABAQUS software to validate the experimental findings, and their outcomes were compared with the results derived from the physical experiments.

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The effect of openings on the performance of self-compacting concrete with volcanic pumice powder and different steel fibers

Cited by 21 publications

References 41 publications

Performance evaluation of fiber-reinforced concrete produced with steel fibers extracted from waste tire

Performance evaluation of fiber-reinforced concrete produced with steel fibers extracted from waste tire

A comprehensive study on physico-mechanical properties of non-metallic fibre reinforced SCC blended with metakaolin and alcofine

Experimental and Numerical Investigation of the Seismic Performance of RC Moment Resisting Frames

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