Physical properties of graphene-oxide modified asphalt and performance analysis of its mixtures using response surface methodology

Adnan, Abbas Mukhtar; Luo, Xue; Lü, Chaofeng; Wang, Jinchang; Huang, Zhiyi

doi:10.1080/10298436.2020.1804061

Cited by 20 publications

(14 citation statements)

References 45 publications

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“…Polymer/carbon-based nanomaterial composites have been extensively and steadily investigated, recording advanced progression in nanocomposites [ 33 , 35 , 36 , 37 , 38 , 39 ]. Recently, graphene and its derivatives have been recognized as promising additives to promote the mechanical performance of asphalt pavements and construction materials [ 40 , 41 , 42 ]. In a recent study, graphene oxide (GO) has promoted the rutting resistance of asphalt mixtures; 2 wt% of GO reduced the permanent deformation after 1000 cycles and permanent strain by 64.5% and 62.5%, respectively [ 40 ].…”

Section: Introductionmentioning

confidence: 99%

Laboratory Evaluation of Mechanical Properties of Modified Asphalt and Mixture Using Graphene Platelets (GnPs)

et al. 2021

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Recently, nanomaterials have attracted attention in the field of pavement construction as modifiers to endure heavy loads and climate changes. In this study, conventional asphalt (bitumen) of penetration grade AC (60/70) was modified with graphene platelets (GnPs) at three different contents: 0.5%, 1.0%, and 1.5% by weight of asphalt content. Kinematic viscosity, softening point, penetration, and dynamic shear rheology tests were performed to evaluate the mechanical properties of modified binder. The results showed that adding GnPs improves the mechanical properties of asphalt binder; the kinematic viscosities, softening points, and rutting parameters increased but penetrations decreased with the contents of GnPs. Hot mix asphalt specimens with GnPs-modified asphalt were prepared and characterized with Marshall tests, thermal stress restrained specimen tests (TSRST), wheel tracking tests, and indirect tensile tests. Similar to the results of asphalt binder, the mechanical properties of asphalt mixture were improved by GnPs. Marshall stability increased by 21% and flow decreased by 24% with accepted value of 2.8 mm in penetration when the mixture was modified with 1.0 wt% of GnPs. At the same GnPs content, modified asphalt mixture led to lower failure temperature by 2 °C in comparison with unmodified asphalt mixture and the cryogenic failure stress was improved by 12%. The wheel tracking tests showed that GnPs-modified asphalt mixture has outstanding deformation resistance in comparison with unmodified asphalt mixtures: after 5000 cycles, 1.0 wt% of GnPs reduced the rut depth of asphalt mixture by 60%—the rut depth of unmodified asphalt mixture was 6.9 mm compared to 2.75 mm for modified asphalt mixture. After 10,000 cycles, the modified asphalt mixture showed rut depth of 3.24 mm in comparison with 8.12 mm in case of unmodified asphalt mixture. Addition of GnPs into asphalt mixture significantly improved the indirect tensile strength: 1.0 wt% of GnPs increased the indirect tensile strength of unmodified asphalt mixture from 0.79 to 1.1 MPa recording ~40% increment. The results of this study can confirm that graphene platelets enhance the mechanical properties of asphalt mixture and its performance.

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Section: Introductionmentioning

confidence: 99%

Laboratory Evaluation of Mechanical Properties of Modified Asphalt and Mixture Using Graphene Platelets (GnPs)

et al. 2021

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“…As shown in Table 2 , the ZSV value was considerably enhanced by applying GO. The increase in ZSV could be attributed to the improved stiffness caused by GO modification [ 21 ]. Owing to its surface chemical functionalities and the high specific area, GO can easily blend with asphalt molecules and form a strong interfacial bond, therefore enhancing the cohesion and stiffness and positively impacting the control asphalt’s deformation resistance [ 18 ].…”

Section: Resultsmentioning

confidence: 99%

“…Excess content (or 2.5%) possibly reduces GO material’s homogeneity, decreasing the entire composite’s stiffness and thus the ZSV of the binder. According to our previous study of the asphalt binder, the 2% GO had the most significant improvement in stiffness of all the GO binders [ 21 ]. Overall, the rutting deformation resistance of the control asphalt was enhanced with the incorporation of GO, as indicated by the increase in the ZSV values.…”

Section: Resultsmentioning

confidence: 99%

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Impact of Graphene Oxide on Zero Shear Viscosity, Fatigue Life and Low-Temperature Properties of Asphalt Binder

et al. 2021

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This study has investigated the impact of graphene oxide (GO) in enhancing the performance properties of an asphalt binder. The control asphalt binder (60/70 PEN) was blended with GO in contents of 0%, 0.5%, 1%, 1.5%, 2%, and 2.5%. The permanent deformation behavior of the modified asphalt binders was evaluated based on the zero shear viscosity (ZSV) parameter through a steady shear test approach. Superpave fatigue test and the linear amplitude sweep (LAS) method were used to evaluate the fatigue behavior of the binders. A bending beam rheometer (BBR) test was conducted to evaluate the low-temperature cracking behavior. Furthermore, the storage stability of the binders was investigated using a separation test. The results of the ZSV test showed that GO considerably enhanced the steady shear viscosity and ZSV value, showing a significant contribution of the GO to the deformation resistance; moreover, GO modification changed the asphalt binder’s behavior from Newtonian to shear-thinning flow. A notable improvement in fatigue life was observed with the addition of GO to the binder based on the LAS test results and Superpave fatigue parameter. The BBR test results revealed that compared to the control asphalt, the GO-modified binders showed lower creep stiffness (S) and higher creep rate (m-value), indicating increased cracking resistance at low temperatures. Finally, the GO-modified asphalt binders exhibited good storage stability under high temperatures.

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“…Several studies have been performed on the effect of different alternative materials on asphalt concrete mixtures [19,[40][41][42][43][44][45][46][47][48]. Table 2 presents the summary of some selected work done utilizing RSM for different independent factors on several mechanical performance properties of asphalt concrete mixes.…”

Section: Application Of Rsm In Modeling and Optimization Of Materials For Asphalt Mixtures Modificationmentioning

confidence: 99%

Response Surface Methodology Optimization in Asphalt Mixtures: A Review

Usman¹,

Sutanto²,

Napiah³

et al. 2021

Response Surface Methodology in Engineering Science

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The application of statistical modeling and optimization approaches such as response surface methodology (RSM) is important for the excellent potential to tackle different constraints and goals and the analysis of the relationships between independent factors influencing a particular response. This chapter provides a simple yet detailed literature review on the utilization of RSM for the design of experiments, modeling, and optimization of virgin and alternative materials into asphalt binder and mixtures for sustainability. Meanwhile, an in-depth analysis based on the literature reviewed in terms of asphalt binder modification employing RSM with various independent parameters were summarized. Also, a critical review of the application of RSM to optimize the engineering and mechanical performance characteristics of asphalt concrete mixtures is presented in this chapter. The current chapter concluded that the use of RSM statistical analysis in a highway materials perspective provides a broader understanding of the factors that control pavement performance throughout the pavement service life.

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Physical properties of graphene-oxide modified asphalt and performance analysis of its mixtures using response surface methodology

Cited by 20 publications

References 45 publications

Laboratory Evaluation of Mechanical Properties of Modified Asphalt and Mixture Using Graphene Platelets (GnPs)

Laboratory Evaluation of Mechanical Properties of Modified Asphalt and Mixture Using Graphene Platelets (GnPs)

Impact of Graphene Oxide on Zero Shear Viscosity, Fatigue Life and Low-Temperature Properties of Asphalt Binder

Response Surface Methodology Optimization in Asphalt Mixtures: A Review

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