A review on Graphene/GNPs/GO modified asphalt

He, Junxi; Hu, Wei; Xiao, Rui; Wang, Yanhai; Polaczyk, Pawel; Huang, Baoshan

doi:10.1016/j.conbuildmat.2022.127222

Cited by 43 publications

(12 citation statements)

References 151 publications

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“…Graphene and its derivative graphene oxide (GO) offer many potential applications, ranging from catalysis and drug delivery to sensors and energy storage devices. − Moreover, GO is increasingly being used as a property modifier for many conventional infrastructure materials, such as cement and asphalt. , The most promising method for the large-scale production of graphene involves converting graphite (Gr) into GO and reducing it to a nearly single- or few-layered substance. GO is a material composed of ultrathin graphitic sheets formed through the oxidation of Gr, a cost-effective and easily processable precursor.…”

Section: Introductionmentioning

confidence: 99%

Improved Oxidation of Graphite and Graphene Nanoplatelets: Application to the Modification of Asphalt Binder

Sengottuvelu,

Almashaqbeh,

Majdoub

et al. 2024

ACS Appl. Nano Mater.

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Graphene oxide (GO) and its derivatives find application in fields such as biomedicine, electronics, energy, and the environment. They also play a significant role in the modification of infrastructure materials, such as asphalt and cement. In this study, we oxidized commercially available graphite (Gr) powder and graphene nanoplatelets (GNPs) using an improved Hummers' method. We first investigated the effects of particle sizes and specific surface areas of the Gr and GNP precursors on their oxidation, which have not been addressed in literature. The results from Fourier transform infrared and X-ray photoelectron spectroscopy analyses show that oxidized Gr (designated ox-Gr or simply GO) with a large surface area and small particle size has a higher degree of oxidation than that of oxidized GNPs (designated oxidized multilayer graphene) with about 9.8% carboxyl functional groups that provide favorable interactions with asphalt binder components. Next, we investigated the effect of this carboxyl-rich GO on the high-temperature performance of the asphalt binder through rotational viscosity, rheology, multiple stress creep and recovery (MSCR), and antiaging property measurements. Our results indicate that the introduction of only 2 wt % GO to a performance-grade asphalt binder (PG 67−22) can dramatically increase its complex shear modulus (G*), as well as decrease the phase angle (δ), at high temperatures. The MSCR tests show that the addition of GO to the asphalt binder effectively mitigates its permanent deformation and improves its elastic response, as demonstrated by a reduction of about 39% in the creep compliance (J nr ) and an impressive 297% increase in the percent recovery (εR) of the GO-modified binder. Furthermore, the measured viscosity aging index and G* ratio of the GOmodified asphalt binder confirm the significant effect of GO on the improvement of the antiaging properties of the binder.

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Section: Introductionmentioning

confidence: 99%

Improved Oxidation of Graphite and Graphene Nanoplatelets: Application to the Modification of Asphalt Binder

Sengottuvelu,

Almashaqbeh,

Majdoub

et al. 2024

ACS Appl. Nano Mater.

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“…These numerous distinguished properties and traits of nanomaterials make GOs and CNTs widely used in modifying asphalt and thermosetting resins to improve the strength, high-temperature performance, aging resistance, rutting resistance, and anti-fatigue performance of asphalt, [23][24][25][26] and to promote the fracture strength and toughness of epoxy resin. 27,28 However, few studies have applied CNTs and GOs in EA.…”

Section: Introductionmentioning

confidence: 99%

Study on preparation and performance of advanced nano‐modified epoxy asphalt

Wang

Zhang

Huang

et al. 2023

J of Applied Polymer Sci

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The rapid growth in traffic volume and loads has increased the demand for high strength and durability paving materials. As the primary paving material of long-life pavements and long-span steel bridge decks, epoxy asphalt (EA) has the problems of poor tensile strength and low fracture toughness. In this study, graphene oxide nanosheets (GOs) and multiwalled carbon nanotubes (CNTs) were used to improve the mechanical properties of EA. Tensile tests, segregation experiments, Fourier transform infrared analysis, X-ray diffraction, and fluorescence microscope (FM) were used to analyze the mechanical properties and micromorphology of nano-modified EA, and to explore the optimal content of these two nano-modifiers in EA. The results of tensile properties tests show the tensile properties of advanced nano-modified EA are better when 0.01 wt% CNTs and 0.02 wt% GOs are added. Among them, EA modified by CNTs has the best toughening effect, and its fracture toughness is increased by 21%. Finally, combining macroscopic and microscopic experimental analysis, it is concluded that the mechanical homogeneity of the advanced nano-modified EA is better, and the asphalt is uniformly dispersed in the continuous phase of epoxy resin. Furthermore, CNTs are chemically reacted with the amino group in oleylamine and modified EA through fiber network reinforcement, and GOs modified EA through the amidation reaction with oleylamine.

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“…Examples of nanomaterials used to modify asphalt binders include nano-TiO 2 [9,11,12], nano-clays [13,14], nanosilica [15], nano-ZnO [16], carbon nano bers [17,18], carbon nanotubes [19,20], and more recently graphene [10,21]. These nanomaterials offer promising prospects for enhancing asphalt binder performance, and the unique characteristics of graphene have received a lot of interest in recent research efforts [7,10,19,22]. For example, Li et al [10] examined the effect of graphene on the high-temperature performance of asphalt binders at different aging conditions.…”

Section: Introductionmentioning

confidence: 99%

“…The literature consensus is that when graphene is added to asphalt binder, the interlayer distance of asphaltene, a main component of asphalt binder, increases, thereby enabling the insertion of stiff and strong GnPs in its place and contributing to the overall enhancement of asphalt binder performance [28,31,32]. Another hypothesis suggests that graphene acts as a micellar center, impeding particle mobility and augmenting the viscosity of the asphalt binder [10,22,33]. Nevertheless, moment to date, there is no clear elucidation of how graphene or its derivatives truly improve the asphalt binder performance.…”

Section: Introductionmentioning

confidence: 99%

Effects of the Geometric Characteristics of Graphene Nanoplatelets on the Physico-Rheological Properties of Asphalt Binder

Almashaqbeh,

Rushing,

Doyle

et al. 2023

Preprint

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While graphene nanoplatelets (GnPs) have emerged as promising nano-modifiers of asphalt binder in recent years, much is still unknown in terms of the existing correlations between the physical, chemical, and geometric characteristics of this nanofiller and observed asphalt binder properties. In this work, we investigate the important correlation between the geometric characteristics of GnPs and the rheological properties of the GnP-modified asphalt binder at high temperatures. Our results indicate that, in general, incorporating GnPs with large mean particle diameters (> 14 µm) and thicknesses (> 8 nm) enhances the high-temperature performance of the asphalt binder. The results of the multiple stress creep and recovery tests confirm that including GnPs in asphalt binder can decrease its permanent deformation by 33.2% and enhance its elastic recovery by 53.9%. Phase images obtained by atomic force microscopy further indicate that the presence of GnPs with large mean particle diameters alters the morphology of the asphalt binder, leading to improved temperature stability and less susceptibility to permanent deformation.

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A review on Graphene/GNPs/GO modified asphalt

Cited by 43 publications

References 151 publications

Improved Oxidation of Graphite and Graphene Nanoplatelets: Application to the Modification of Asphalt Binder

Improved Oxidation of Graphite and Graphene Nanoplatelets: Application to the Modification of Asphalt Binder

Study on preparation and performance of advanced nano‐modified epoxy asphalt

Effects of the Geometric Characteristics of Graphene Nanoplatelets on the Physico-Rheological Properties of Asphalt Binder

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