effect of graphene on modified asphalt microstructures

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Effect of Graphene on Modified Asphalt Microstructures ...

Jul 01, 2021  3.1. Effect of Graphene on Fundamental Properties of Asphalt. Figure 2 a,b show the basic properties of the base and graphene-modified (the dosage of graphene was 1.0% in weight) asphalt before and after aging, respectively. As shown in Figure 2, both the base and modified asphalt show a trend of decreasing penetration, increasing softening point, increasing viscosity, and

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Effect of Graphene on Modified Asphalt Microstructures ...

Jul 01, 2021  Atomic force microscopy (AFM) was used to explore the effects of graphene modifier on the microstructure of asphalt. The morphologies of the before- and after-aged base asphalt and modified asphalt were performed and compared with analysis. The formation mechanism of asphaltic “bee structures” and the influence mechanism of graphene on asphalt were discussed from the

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Effect of Graphene on Modified Asphalt Microstructures ...

adshelp[at]cfa.harvard The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86A

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Materials Free Full-Text Effect of Graphene on ...

Jul 01, 2021  Feature Papers represent the most advanced research with significant potential for high impact in the field. Feature Papers are submitted upon individual invitation or recommendation by the scientific editors and undergo peer review prior to publication.

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Preparation of graphene oxide and its modification effect ...

Abstract. In this paper, graphene oxide (GO) was synthesized by pressurized oxidation method and GO-modified asphalt was prepared by solution melting method. The structure and morphology of GO was ...

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Effects of graphene oxide on asphalt binders - ScienceDirect

Jan 01, 2019  Abstract. Many studies have shown that graphene oxide (GO) could produce a good improvement effect on the mechanical and rheological properties of polymers. But, when used as a modifier for an asphalt binder, the GO–asphalt interaction, aging properties, and the effect of GO on asphalt pavement performance are still not clear. In this chapter ...

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Investigation of microscale aging behavior of asphalt ...

As shown in Figure 5, the R q of the graphene-modified asphalt was smaller than that of asphalt, indicating that the addition of graphene reduced the roughness of the Materials 2021, 14, 3677 7 of ...

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Effect of microstructure of graphene oxide fabricated ...

Different GO laminate structures had the effect of transforming the membrane surface from hydrophilic to hydrophobic Abstract We utilized pressure-, vacuum-, and evaporation-assisted self-assembly techniques through which graphene oxide (GO) was deposited on modified polyacrylonitrile (mPAN).

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Effects of water exposure on bitumen surface ...

Atomic force microscopy (AFM) was used to explore the effects of graphene modifier on the microstructure of asphalt. The morphologies of the before- and after-aged base asphalt and modified ...

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Materials Free Full-Text Effect of Graphene on ...

Jul 01, 2021  Feature Papers represent the most advanced research with significant potential for high impact in the field. Feature Papers are submitted upon individual invitation or recommendation by the scientific editors and undergo peer review prior to publication.

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Preparation of graphene oxide and its modification effect ...

Abstract. In this paper, graphene oxide (GO) was synthesized by pressurized oxidation method and GO-modified asphalt was prepared by solution melting method. The structure and morphology of GO was ...

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Properties and modification mechanism of asphalt with ...

In this study, A-70 asphalt provided by Shandong Hi-speed Construction Materials, Jinan, China, was used as the base asphalt. Graphene-modified asphalt was home-made and the

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Effects of graphene oxide on asphalt binders - ScienceDirect

Jan 01, 2019  Abstract. Many studies have shown that graphene oxide (GO) could produce a good improvement effect on the mechanical and rheological properties of polymers. But, when used as a modifier for an asphalt binder, the GO–asphalt interaction, aging properties, and the effect of GO on asphalt pavement performance are still not clear. In this chapter ...

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The Utilization of Graphene Oxide in Traditional ...

Jan 07, 2017  Finally, the GO-modified asphalt was prepared. In the preparation process, an interesting phenomenon was found. When heating the GO-modified asphalt, a large amount of gas was released above 115 °C. Figure 1 shows the gas was released in the GO-modified asphalt and the volume of modified asphalt was increased by almost three times. Then the ...

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Jiangmiao Yu's research works South China University of ...

Reference: Effect of Graphene on Modified Asphalt Microstructures Based on Atomic Force Microscopy Enhanced Storage Stability of Different Polymer Modified Asphalt Binders through Nano ...

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Effect of Waterborne Epoxy Resin on Properties of Modified ...

Aug 08, 2021  In addition, the performance parameters of the waterborne-epoxy-resin modified emulsified asphalt were compared with those of the neat asphalt and the emulsified asphalt. Last, the microstructures of the modified emulsified asphalt samples were studied with scanning electron microscopy (SEM).

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Gold Microstructures/Polyaniline/Reduced Graphene Oxide ...

In this process, the effect of PANI and rGO on the proposed immunosensor was studied. In detail, PANI/rGO due to the unique electrochemical properties can effectively prevent PB leakage and form a stable sensing platform, which causes sensitive responsiveness and thus a more satisfied detection limit.

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"Performance evaluation and modification mechanism ...

View 1 peer review of Performance evaluation and modification mechanism analysis of asphalt binders modified by graphene oxide on Publons Download Web of Science™ My Research Assistant : Bring the power of the Web of Science to your mobile device, wherever inspiration strikes.

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Microstructures and high-temperature self-lubricating wear ...

May 11, 2020  The graphene-modified coating was continuously exposed to the wear tracks on the surface of the contacting materials during friction, and a lubricating film was formed in the microareas in which the wear tracks were present. The coating exhibited improved self-lubricating and wear-resistant effects compared to the unmodified WC-12Co coating.

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Microstructures and high-temperature self-lubricating ...

The graphene-modified coating was continuously exposed to the wear tracks on the surface of the contacting materials during friction, and a lubricating film was formed in the microareas in which the wear tracks were present. The coating exhibited improved self-lubricating and wear-resistant effects compared to the unmodified WC–12 Co coating.

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Improvement of Asphalt Properties Using Polymethyl ...

Increasing traffic loading and volumes on roads have led to the use of polymer modified binders to improve the performance of bitumen in terms of strength, durability, and resistance to rutting. This research studies the effect of adding poly methyl methacrylate (PMMA) with different molecular weights on asphalt properties. PMMA polymer was prepared via solution polymerization of MMA using ...

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Property Improvement of Cement Emulsified Asphalt Paste ...

Mar 07, 2020  Cement emulsified asphalt paste (CEAP) is widely used as a construction and building material by combining the advantages of cement rigidity and asphalt flexibility. However, the properties of CEAP can be evidently reduced due to the addition of emulsified asphalt. In this work, graphene oxide (GO) was prepared by the Hummers method and was innovatively used to improve the workability and ...

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Highway Engineering

Analysis of Rheological Performance of High-Viscosity Modified Asphalt Binders ..... 30 Study on Rheological Properties of Graphene Rubber Composite Modified Asphalt..... 31 Research on the Performance of Pulverized Strontium Slag on Properties of Cement Mortar

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Graphene’s health effects summarised in new guide

3) Use graphene, or chemically modified graphene material, that can be easily cleared from or biodegraded in the body, to prevent damage from chronic accumulation into tissues. This study provides useful information to help guide the work of graphene research groups and could help raise awareness of graphene’s potential health and safety effects.

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Effects of mixing sequence on mechanical properties of ...

Aug 30, 2019  In this work, the effects of mixing sequence of graphene oxide (GO) and warm mix additives on the mechanical properties of the composite modified asphalt binder (CMAB) were evaluated. The warm mix additives included Sasobit® and waste cooking oil (WCO).

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Microstructures and high-temperature self-lubricating ...

The graphene-modified coating was continuously exposed to the wear tracks on the surface of the contacting materials during friction, and a lubricating film was formed in the microareas in which the wear tracks were present. The coating exhibited improved self-lubricating and wear-resistant effects compared to the unmodified WC–12 Co coating.

Get Price

Microstructures and high-temperature self-lubricating wear ...

May 11, 2020  The graphene-modified coating was continuously exposed to the wear tracks on the surface of the contacting materials during friction, and a lubricating film was formed in the microareas in which the wear tracks were present. The coating exhibited improved self-lubricating and wear-resistant effects compared to the unmodified WC-12Co coating.

Get Price

"Performance evaluation and modification mechanism ...

View 1 peer review of Performance evaluation and modification mechanism analysis of asphalt binders modified by graphene oxide on Publons Download Web of Science™ My Research Assistant : Bring the power of the Web of Science to your mobile device, wherever inspiration strikes.

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Interfacial strengthening by reduced graphene oxide coated ...

Jun 01, 2020  The microstructures of GO and RGO/MgO powders were analyzed by SEM and TEM and ... and diatomite on organic montmorillonite-modified asphalt. J. Mater. Civ. Eng., 31 (2) (2019), Article 04018388. CrossRef View Record in Scopus ... Effect of the graphene oxide additive on the corrosion resistance of the plasma electrolytic oxidation coating of ...

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Microstructure and dynamic mechanical properties epoxy ...

Mar 06, 2021  Asphalt is a cheap material with complex chemical composition and has been widely used in the construction industry. The performance of asphalt is highly correlated to its chemical composition, which primarily depends on the source of crude oil and actual operating conditions as well [].It is difficult to identify the molecular component and structure due to the chemical complexity of

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Highway Engineering

Analysis of Rheological Performance of High-Viscosity Modified Asphalt Binders ..... 30 Study on Rheological Properties of Graphene Rubber Composite Modified Asphalt..... 31 Research on the Performance of Pulverized Strontium Slag on Properties of Cement Mortar

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CN103819915A - Graphene oxide modified asphalt and ...

The invention provides graphene oxide modified asphalt, comprising, by mass, 0.5 to 15% of graphene oxide and 85 to 99.5% of matrix asphalt, wherein the above mentioned mass percent sums to 100%. A preparation method for the graphene oxide modified asphalt comprises the following steps: heating and fusing matrix asphalt, maintaining a temperature to be 120 to 200 DEG C, adding graphene oxide ...

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Effect of Chemical Corrosion on Properties of SBS Modified ...

SBS modified bitumen membrane used in underground engineering and coastal buildings would be corroded by chemical media, which greatly influenced the service life of waterproofing membranes. In this paper, SBS modified bitumen (MB), SBS modified bitumen with stone powder (MBS) and SBS modified bitumen with talc powder (MBT) were corroded by acidic, alkaline, and saline solutions for

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WAXD Scientific.Net

The microstructures of the reinforced asphalt binders are investigated using transmission electron microscopy (TEM) and wide angle X-ray diffraction (WAXD). Two models for the microstructure of the BT and OBT modified asphalts are suggested considering the colloidal structure of the base asphalt binder.

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Sustainability Free Full-Text Enhancing Effect of ...

Oct 08, 2021  Waste engine oil bottom (WEOB) is a hazardous waste whose effect as an additive to CR+SBS modified asphalt is rarely studied. In this study, the CR+SBS asphalt binder was modified with WEOB in different concentrations (3, 6, and 9 wt%). The GC–MS and FTIR were performed to evaluate the chemical compositions of WEOB and WEOBCR+SBS asphalt. The results showed that

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Investigation of Physical Properties of Graphene-Cement ...

The hydration of cement generates heat due to the exothermic nature of the hydration process. Poor heat dissipation in mass concrete results in a temperature gradient between the inner core and the outer surface of the element. High temperature gradients generate tensile stresses that may exceed the tensile strength of concrete thus leading to thermal cracking.

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Cement chemistry - ICE Virtual Library

Jul 07, 2015  The microstructure evolution of cement paste modified by cationic asphalt emulsion. Wei Li Ziming Mao Guodong Xu Jinxiang Hong Honglei Chang Haitao Zhao Zhicheng Liu: ... Effect of graphene nanoplatelets on hydration behaviour of Portland cement by thermal analysis. ... Investigation on microstructures of cementitious composites incorporating slag.

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