Feasibility of Recycled Carbon Fiber-Reinforced Polymer Fibers in Cementitious Composites: An Experimental Investigation

Lamba, Nitin; Raj, Ritu; Singh, Poonam

doi:10.1007/s13369-024-08712-4

Cited by 1 publication

(2 citation statements)

References 29 publications

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“…In Figure 4 a, smaller grooves can be seen on the surface of the macrofiber, which possibly contributed to the deposition of GO during the treatment. According to Lamba, Raj, and Singh [ 25 ], these small cracks on the surface of the fibers have the potential to strengthen the interface with the matrix, which can contribute to the force versus displacement stages of reinforced concrete, especially in the post-cracking stages when friction is of greater importance [ 26 ].…”

Section: Resultsmentioning

confidence: 99%

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Effect of Graphene Oxide Surface Deposition Process on Synthetic Macrofibers and Its Results on the Microstructure of Fiber-Reinforced Concrete

Cecconello,

Poletto

2024

Polymers

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The improvement of the mechanical properties of concrete can be achieved with the use of synthetic macrofibers. However, this fiber–matrix interaction will be sufficiently efficient for tensile efforts only when there is a binding agent that associates the characteristics of the paste with the characteristics of the surface of the reinforcing material. As already identified, in a first phase of this research using synthetic microfibers, a better fiber–matrix interaction can be achieved with the surface treatment of synthetic fibers with graphene oxide. In this way, we sought to evaluate the surface treatment with graphene oxide on two synthetic polypropylene macrofibers (macrofiber “A” and macrofiber “B”) and its contribution to the concrete transition zone. The surface deposition on the macrofiber was carried out using the ultrasonication method; then, the macrofiber with the best deposition for creating reinforced concrete mixtures was identified. To evaluate the quality of GO deposition, scanning electron microscopy (SEM-FEG) and energy-dispersive spectroscopy (EDS) tests were carried out; the same technique was used to evaluate the macrofiber–matrix transition zone. The SEM-FEG images indicated that macrofiber “B” obtained greater homogeneity in surface deposition and it presented a 13% greater deposition of C in the EDS spectra. The SEM-FEG micrographs for reinforced concrete indicated a reduction in voids in the macrofiber–matrix transition zone for concretes that used macrofibers treated with GO.

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Section: Resultsmentioning

confidence: 99%

“…At point 9, located next to the matrix, a high concentration of Ca is identified, resulting from the hydration of the cement. Lamba, Raj, and Singh [ 25 ] indicate that crystalline silicon and calcium are identified together with the cement-based matrix, with hydrated calcium silicate and calcium hydroxide being the main hydration products.…”

Section: Resultsmentioning

confidence: 99%

Effect of Graphene Oxide Surface Deposition Process on Synthetic Macrofibers and Its Results on the Microstructure of Fiber-Reinforced Concrete

Cecconello,

Poletto

2024

Polymers

View full text Add to dashboard Cite

show abstract

Feasibility of Recycled Carbon Fiber-Reinforced Polymer Fibers in Cementitious Composites: An Experimental Investigation

Cited by 1 publication

References 29 publications

Effect of Graphene Oxide Surface Deposition Process on Synthetic Macrofibers and Its Results on the Microstructure of Fiber-Reinforced Concrete

Effect of Graphene Oxide Surface Deposition Process on Synthetic Macrofibers and Its Results on the Microstructure of Fiber-Reinforced Concrete

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