Impact of waste cooking oil on the viscosity, microstructure and mechanical performance of warm-mix epoxy asphalt binder

Li, Chenxuan; Han, Xiaocheng; Gong, Jie; Su, Wufeng; Xi, Zhonghua; Zhang, Junsheng; Wang, Qingjun; Xie, Hongfeng

doi:10.1016/j.conbuildmat.2020.118994

Cited by 45 publications

(20 citation statements)

References 51 publications

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“…If asphalt concentration increases up to 60 wt.%, inversion phase separation will occur where epoxy is dispersed in the continuous asphalt phase. Phase inversion was also observed when 6% WCO was added, and interestingly, secondary phase separation in the dispersed epoxy phase, i.e., asphalt particles dispersed in epoxy phase, was also observed at this WCO concentration [70]. However, no phase inversion was observed between BrSBS and asphalt with over 6 wt.% BrSBS [37].…”

Section: Laser Scanning Confocal Microscope (Lscm) and Fluorescence Microscopy (Fm)mentioning

confidence: 84%

“…It was also very attractive to reduce the construction temperature of EAM since EA was normally cured at high temperature (>170°C) [27]. Cold-mixed [5,56,68] and warm-mixed [14,69,70] EA technologies have been attempted to save energies and protect the environment and construction staff. Compared to hot-mixed epoxy asphalt (HMEA) and warm-mixed epoxy asphalt (WMEA), coldmixed epoxy asphalt (CEA) can be treated as a green material for paving [68].…”

Section: Construction Temperature and Construction Timementioning

confidence: 99%

“…e particle size of the asphalt phase was also reduced with the increase of ESO-modified nanosilica content. e addition of WCO was reported to reduce the particle size of the dispersion phase due to the decrease in stiff asphaltene component [70].…”

Section: Laser Scanning Confocal Microscope (Lscm) and Fluorescence Microscopy (Fm)mentioning

confidence: 99%

“…For EAM to be paved on bridge deck, the time duration for the viscosity to reach 1000 mPa•s was recommended to be no less than 55 min at 120°C [4,14]. When 2%-6% WCO was added to WMEA, the allowable construction time was increased to 52∼58 min [70]. In addition, allowable construction time was determined following evolutions of both viscosity of EA and Marshall stability of EAM (see Figure 17), which were described by Arrhenius model [127].…”

Section: Viscositymentioning

confidence: 99%

“…e temperature corresponding to a maximum value of tan δ on tan δ-temperature curve from DMA was commonly identified as T g for EA. It should be noted that there are two peaks for tan δ: one at low temperature range (identified as β transition temperature, T β ) and one at higher temperature (identified as T g ) [17,70].…”

Section: Dynamic Viscoelasticitymentioning

confidence: 99%

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Application of Epoxy‐Asphalt Composite in Asphalt Paving Industry: A Review with Emphasis on Physicochemical Properties and Pavement Performances

Chen

Hossiney

Yang

et al. 2021

Advances in Materials Science and Engineering

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One of the failure mechanisms associated with asphalt paving layers, especially on steel deck bridges, is large permanent deformation, which adversely affects its long-term performance in service. Thus, epoxy resin was introduced in asphalt paving industry to tackle permanent deformation of asphalt mixtures due to its thermosetting nature. In this review, epoxy resin as a dominant component of the epoxy-asphalt composite system was first considered, followed by a discussion on its curing methods and curing mechanism. Furthermore, the physicochemical property and mechanical performance of epoxy asphalt and epoxy asphalt mixture were thoroughly examined. Crosslink density of epoxy asphalt dictates its viscosity and thus the allowable construction time. Phase separation and dispersion of asphalt particles in the epoxy matrix was observed for epoxy-asphalt composite, and it showed superior elastic behavior and deformation resistance capability when compared with conventional asphalt materials. Furthermore, epoxy asphalt mixture exhibited significantly higher compressive strength, much better rutting resistance, and superior durability and water resistance properties. However, its low-temperature cracking resistance was slightly compromised.

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Section: Laser Scanning Confocal Microscope (Lscm) and Fluorescence Microscopy (Fm)mentioning

confidence: 84%

Section: Construction Temperature and Construction Timementioning

confidence: 99%

Section: Laser Scanning Confocal Microscope (Lscm) and Fluorescence Microscopy (Fm)mentioning

confidence: 99%

Section: Viscositymentioning

confidence: 99%

Section: Dynamic Viscoelasticitymentioning

confidence: 99%

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Application of Epoxy‐Asphalt Composite in Asphalt Paving Industry: A Review with Emphasis on Physicochemical Properties and Pavement Performances

Chen

Hossiney

Yang

et al. 2021

Advances in Materials Science and Engineering

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Viscosity‐curing time behavior, viscoelastic properties, and phase separation of graphene oxide/epoxy asphalt composites

Zhao

Fan

et al. 2022

Polymer Composites

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Graphene oxide (GO) with 0.2, 0.5, and 1.0 wt% loading was used to modify warm‐mix epoxy asphalt binders (WEABs). The thermal stability, structure of GO, rotational viscosity‐curing time performance, dynamic moduli, glass transitions, damping ability, mechanical performance, and phase‐separated morphology of GO/epoxy asphalt composites were investigated in the laboratory. GO significantly enhanced the thermal stability of the pure WEAB. X‐ray scattering analysis revealed that GO layers were delaminated in the epoxy asphalt binder. GO accelerated the cure reaction of the pure WEAB and thus resulted in higher rotational viscosity of GO/epoxy asphalt composites. Furthermore, the viscosity of the modified WEABs slightly increased in the GO content. GO increased the dynamic moduli and Tgs of both epoxy and asphalt for the pure WEAB. However, the damping ability of GO/epoxy asphalt composites was similar to that of the pure WEAB. Confocal microscopy observations revealed that GO was dispersed in both asphalt and epoxy phases of the phase‐separated WEAB. The asphalt domains in the continuous epoxy phase became more spherical and uniform with the existence of GO. Moreover, the dispersion of epoxy in the discontinuous asphalt phase became more evident. The mechanical properties of the pure WEAB were greatly improved with the addition of GO. The tensile toughness and strength of the pure WEAB increased by 31% and 33%, respectively, with the addition of 0.2 wt% GO.

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Thermal and bonding properties of epoxy asphalt bond coats

Sun

Liu

Gong

et al. 2021

J Therm Anal Calorim

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Impact of waste cooking oil on the viscosity, microstructure and mechanical performance of warm-mix epoxy asphalt binder

Cited by 45 publications

References 51 publications

Application of Epoxy‐Asphalt Composite in Asphalt Paving Industry: A Review with Emphasis on Physicochemical Properties and Pavement Performances

Application of Epoxy‐Asphalt Composite in Asphalt Paving Industry: A Review with Emphasis on Physicochemical Properties and Pavement Performances

Viscosity‐curing time behavior, viscoelastic properties, and phase separation of graphene oxide/epoxy asphalt composites

Thermal and bonding properties of epoxy asphalt bond coats

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