Investigation on the anti-aging properties enhancement mechanism of graphene on RA based on size effect

Liao, Meijie; Gao, Yingli; Xie, Yutong; Zhu, Juncai; Li, Zhengkang; Tian, Weiwei; Zhu, Zhanghuang

doi:10.1016/j.cscm.2022.e01634

Cited by 3 publications

(1 citation statement)

References 31 publications

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“…These results demonstrate that the inclusion of 1.5 wt% M15 GnPs significantly improve the aging Based on literature, GnPs may act as micellar nuclei in asphalt and graphene sheets can impede and/or prevent the diffusion of oxygen into asphalt binder [8]. Moreover, there is computational evidence that graphene sheets inhibit the oxidation of saturated phenols and, thereby, improve the aging resistance of asphalt [37].…”

Section: Rheological Performancesupporting

confidence: 69%

Effects of the geometric characteristics of graphene nanoplatelets on the physico-rheological properties of asphalt binder

Almashaqbeh,

Rushing,

Doyle

et al. 2024

Mater Struct

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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 contrast 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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Section: Rheological Performancesupporting

confidence: 69%

Effects of the geometric characteristics of graphene nanoplatelets on the physico-rheological properties of asphalt binder

Almashaqbeh,

Rushing,

Doyle

et al. 2024

Mater Struct

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Effects of Graphene Materials on Asphalt and Asphalt Mixture

Ran,

Fu,

Ran

et al. 2024

Iran J Sci Technol Trans Civ Eng

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The Use of Graphene in the Modification of Bitumen: A Literature Review

Şahan,

Kumandaş,

Oruç

2024

UUJFE

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In recent years, nanomaterials in bitumen modification have become widespread due to their superior properties. Graphene and its derivatives are prominent examples of this. Therefore, this review study was conducted to evaluate the effect of graphene on bitumen in detail. Accordingly, by examining the literature studies, general information about graphene and its derivatives was given, and the preparation conditions of graphene-modified bitumen were evaluated. Then, the effect of graphene on the physical and rheological properties of bitumen was investigated. In addition, the impact of graphene modification on the performance of asphalt mixtures and the use of graphene in composite modification was investigated. As a result, it was determined that graphene improves the high-temperature performance of bitumen, but its effect on the low-temperature and fatigue performance of bitumen is mostly negligible. In addition, it has been determined that graphene increases the rutting resistance of bituminous mixtures and positively affects the cracking resistance of bituminous mixtures in general.

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Investigation on the anti-aging properties enhancement mechanism of graphene on RA based on size effect

Cited by 3 publications

References 31 publications

Effects of the geometric characteristics of graphene nanoplatelets on the physico-rheological properties of asphalt binder

Effects of the geometric characteristics of graphene nanoplatelets on the physico-rheological properties of asphalt binder

Effects of Graphene Materials on Asphalt and Asphalt Mixture

The Use of Graphene in the Modification of Bitumen: A Literature Review

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