A Review of Fiber Synergy in Hybrid Fiber Reinforced Concrete

Singh, Niraj Kumar; Rai, Baboo

doi:10.2478/jaes-2018-0017

Cited by 18 publications

(14 citation statements)

References 44 publications

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“…3 ). It is also worth noting that employing fibers for concrete reinforcement imposes certain mix composition constraints, necessitating a change ( Markovic, 2006 ; Singh and Rai, 2018 ; Mohajerani et al, 2019 ). The workability of concrete is influenced by the fibers' number, shape, slenderness, and mix composition ( Markovic, 2006 , Karahan and Atiş, 2011 ; Blazy and Blazy, 2021 ; Zych and Krasodomski, 2016 ; Wan Ibrahim et al, 2017 ).…”

Section: Resultsmentioning

confidence: 99%

Advances on concrete strength properties after adding polypropylene fibers from health personal protective equipment (PPE) of COVID-19: Implication on waste management and sustainable environment

Aal¹,

Abdullah²,

Qadri³

et al. 2022

Physics and Chemistry of the Earth, Parts A/B/C

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Section: Resultsmentioning

confidence: 99%

Advances on concrete strength properties after adding polypropylene fibers from health personal protective equipment (PPE) of COVID-19: Implication on waste management and sustainable environment

Aal¹,

Abdullah²,

Qadri³

et al. 2022

Physics and Chemistry of the Earth, Parts A/B/C

View full text Add to dashboard Cite

“…Combining fibers with different sizes allows to increase the reinforcing effect too [ 15 ], but it could have a strong effect on workability due to its dependence on fiber morphology. The effect of different sizes of recycled fibers on workability and mechanical properties of concrete has been evaluated by Ogi et al (2005) [ 101 ].…”

Section: Hybrid R-frcmentioning

confidence: 99%

“…The positive effects of hybrid fibers on mechanical properties are attributed to the fact that different sizes and types of fibers offer differing restraints. Therefore, it is accepted that hybridization, by the combination of different fibers, has a synergic effect on FRC mechanical properties [ 3 , 15 ], which has been a hot research topic during the last 20 years.…”

Section: Introductionmentioning

confidence: 99%

Recycled Fibers for Sustainable Hybrid Fiber Cement Based Material: A Review

et al. 2021

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Reinforcing fibers have been widely used to improve physical and mechanical properties of cement-based materials. Most fiber reinforced composites (FRC) involve the use of a single type of fiber to improve cement properties, such as strength or ductility. To additionally improve other parameters, hybridization is required. Another key challenge, in the construction industry, is the implementation of green and sustainable strategies based on reducing raw materials consumption, designing novel structures with enhanced properties and low weight, and developing low environmental impact processes. Different recycled fibers have been used as raw materials to promote circular economy processes and new business opportunities in the cement-based sector. The valuable use of recycled fibers in hybrid FRC has already been proven and they improve both product quality and sustainability, but the generated knowledge is fragmented. This is the first review analyzing the use of recycled fibers in hybrid FRC and the hybridization effect on mechanical properties and workability of FRC. The paper compiles the best results and the optimal combinations of recycled fibers for hybrid FRC to identify key insights and gaps that may define future research to open new application fields for recycled hybrid FRC.

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“…Due to their size, synthetic fibers can be classified into macrofibers and microfibers [ 11 ]. Microfibers (less than 0.3 mm diameter) minimize the cracking originating plastic and drying shrinkage but do not provide structural capacity [ 21 ]. On the other hand, macrofibers (equal to or greater than 0.3 mm diameter) are used to improve the post-cracking performance of concrete elements subjected to flexural and tensile strength [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Synthetic Fibers on the Flexural Properties of Concrete: Prediction of Toughness as a Function of Volume, Slenderness Ratio and Elastic Modulus of Fibers

et al. 2023

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The construction industry requires concrete with adequate post-cracking behavior for applications such as tunnels, bridges, and pavements. For this reason, polypropylene macrofibers are used, which are synthetic fibers that fulfill the function of providing residual strength to concrete. In this study, an experimental plan is carried out to evaluate the bending behavior of concrete reinforced with polypropylene fibers using the four-point bending test according to ASTM C1609. Three fiber dosages (3.6, 7.2 and 10.8 kg/m3) and three fiber lengths (40, 50, and 60 mm) were used. The use of macro polypropylene fibers increased the post-cracking behavior of concrete. In addition, based on the experimentally obtained results and available literature data, a multivariable equation was developed to predict the concrete toughness as a function of the volume, slenderness, and modulus of elasticity of the fibers. A Pearson’s correlation coefficient, r of 0.90, showed a strong correlation between the developed equation and the experimental data. From this equation, it was possible to determine the participation of the following parameters in calculating toughness. The participation or weight of the fiber’s modulus of elasticity on the concrete’s tenacity is 26%, the volume of the fiber is 39%, the slenderness is 19%, and the reinforcement index is 16%.

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A Review of Fiber Synergy in Hybrid Fiber Reinforced Concrete

Cited by 18 publications

References 44 publications

Advances on concrete strength properties after adding polypropylene fibers from health personal protective equipment (PPE) of COVID-19: Implication on waste management and sustainable environment

Advances on concrete strength properties after adding polypropylene fibers from health personal protective equipment (PPE) of COVID-19: Implication on waste management and sustainable environment

Recycled Fibers for Sustainable Hybrid Fiber Cement Based Material: A Review

Influence of Synthetic Fibers on the Flexural Properties of Concrete: Prediction of Toughness as a Function of Volume, Slenderness Ratio and Elastic Modulus of Fibers

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