Enhanced Storage Stability of Different Polymer Modified Asphalt Binders through Nano-Montmorillonite Modification

Ren, Zhibin; Zhu, Yanyan; Wu, Qi; Zhu, M.; Guo, Feng; Yu, Huayang; Yu, Jianying

doi:10.3390/nano10040641

Cited by 55 publications

(23 citation statements)

References 39 publications

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“…The softening point’s difference (SP diff ) between the top and bottom parts should be less than 2.5 °C to ensure acceptable storage stability (ASTM D5892). Moreover, a lower SP diff value reveals a higher storage stability [ 28 , 37 ]. Chemical change investigation of binders: …”

Section: Methodsmentioning

confidence: 99%

“…Based on the literature, incorporating NC particles with styrene-butadiene-styrene (SBS) polymer improved binder physical and rheological properties [ 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 ], aging characteristics [ 25 ], storage stability [ 21 , 22 , 26 ], fatigue cracking resistance [ 6 , 27 ], and rutting resistance [ 23 , 24 ]. Ren et al, 2020 investigated the effect of NC on the physical and rheological properties and the storage stability of three polymer-modified binders using; crumb rubber (CRM), styrene-butadiene-styrene (SBS), and styrene-butadiene-rubber (SBR) [ 28 ]. Based on their results, the addition of NC slightly increased the viscosity but did not affect the three polymer-modified binders’ rheological properties.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Nanoclay Particles on the Performance of High-Density Polyethylene-Modified Asphalt Concrete Mixture

2021

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Utilizing polymers for asphalt concrete (AC) mixture modification has many drawbacks that hinder its wide implementations for roadway construction. Recently, research on employing complementary materials, such as nanomaterials, to balance negative impacts of polymers while enhancing the AC mixture’s performance has received great attention. This study aimed to investigate the effect of incorporating nanoclay (NC) particles on the performance of a high-density polyethylene (HDPE)-modified AC mixture. A 60/70 asphalt binder was first modified with HDPE, and then NC particles were gradually added at a concentration of 1–4% by weight of the asphalt binder. The binders’ physical characteristics, storage stability, and chemical change were scrutinized. AC mixture performance, including pseudo-stiffness, moisture damage resistance, stripping susceptibility, and rutting tendency, was investigated. A statistical analysis on the experimental results was conducted using Kruskal–Wallis and Dunn tests. Test results showed that employing NC/HDPE significantly increased penetration index and thereby enhanced binder temperature sensitivity. Moreover, it prevented oxidation action and separation and, therefore, enhanced binder storage stability. Furthermore, incorporating NC amplified pseudo-stiffness and significantly improved resistance against moisture damage and stripping of HDPE-modified mixtures. Moreover, it improved both elastic (recoverable) and plastic (unrecoverable) deformations of mixtures. The most satisfactory results were attained when incorporating 3% of NC.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Nanoclay Particles on the Performance of High-Density Polyethylene-Modified Asphalt Concrete Mixture

2021

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“…The MSCR test has been introduced as a test to evaluate the resistance to permanent deformation (rutting) as well as a tool to evaluate the quality of polymer modified binders [44,45]. Generally, a combination of high recovery (R) and low non-recoverable compliance (Jnr) indicates a good quality PMB that can be utilized in high traffic pavements, as described in AASHTO M332.…”

Section: Rutting Resistance Indicator (Mscr Test)mentioning

confidence: 99%

Physicochemical and Rheological Properties of A Transparent Asphalt Binder Modified with Nano-TiO2

Segundo¹,

Landi²,

Margaritis³

et al. 2020

Preprint

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Transparent binder is used to substitute conventional black asphalt binder and to provide light-colored pavements, whereas nano-TiO2 has the potential to promote photocatalytic and self-cleaning properties. Together, these materials provide multifunction effects and benefits when the pavement is submitted to high solar irradiation. This paper analyses the physicochemical and rheological properties of a transparent binder modified with 0.5%, 3.0%, 6.0%, and 10.0% of nano-TiO2 and compares it to the transparent base binder, and conventional and polymer modified binders (PMB) without nano-TiO2. Their penetration, softening point, dynamic viscosity, master curve, black diagram, Linear Amplitude Sweep (LAS), Multiple Stress Creep Recovery (MSCR), and Fourier-Transform Infrared Spectroscopy (FTIR) were obtained. The transparent binders (base and modified) seem to be workable considering their viscosity and exhibited values between the conventional binder and PMB regarding rutting resistance, penetration, and softening point. They showed similar behavior as the PMB, demonstrating signs of polymer-modification. The addition of TiO2 seems to reduce fatigue life, except for the 0.5% content. Nevertheless, its addition in high contents increases the rutting resistance. The TiO2 modification seems to have little effect on the chemical functional indices. The best percentage of TiO2 was 0.5%, considering fatigue and 10.0% concerning permanent deformation.

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“…For the sake of improving the mechanical properties of bituminous flexible pavement, a lot of related research work has been done, including modification of bituminous materials [ 15 , 16 ], optimizing bituminous flexible pavement structure [ 17 ]. However, with the rapid development of nanotechnology, more and more researchers are committed to introducing nanomaterials to modify bitumen [ 18 ]. Nanomaterials refer to materials in the range of 1~100 nanometers in at least one dimension.…”

Section: Introductionmentioning

confidence: 99%

Experimental Characterization of Viscoelastic Behaviors of Nano-TiO2/CaCO3 Modified Asphalt and Asphalt Mixture

Wu¹,

Li²,

Wang³

et al. 2021

Nanomaterials

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The purpose of this paper is to promote the application of nano-TiO2/CaCO3 in bituminous materials and present an experimental characterization of viscoelastic behaviors of bitumen and bituminous mixture modified by nano-TiO2/CaCO3. In this work, a series of viscoelastic behavior characterization tests were conducted, including dynamic shear rheometer (DSR) test for bitumen, uniaxial static compression creep test and dynamic modulus test for bituminous mixture. Moreover, various viscoelastic models with clear physical meanings were used to evaluate the influence of nano-TiO2/CaCO3 on the macroscopic performance of bitumen and bituminous mixture. The results show that bitumen and its mixtures are time-temperature dependent. The Christensen-Anderson-Marasteanu (CAM) model of frequency sweep based on DSR test indicated that adding nano-TiO2/CaCO3 can effectively capture the sensitivity of temperature. In addition, the incorporation of nano-TiO2/CaCO3 in bituminous mixture can significantly enhance the high-temperature anti-rutting, and slightly improve the low-temperature anti-cracking as well. At the same time, the modified Burgers model can accurately describe the viscoelastic behavior of bituminous mixtures in the first two creep stages, reflecting the consolidation effect of bituminous mixture. Also, the generalized Sigmoidal model can accurately grasp the characteristics of the relationship between dynamic modulus and reduced frequency and achieve good prediction effects in a wider frequency range.

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Enhanced Storage Stability of Different Polymer Modified Asphalt Binders through Nano-Montmorillonite Modification

Cited by 55 publications

References 39 publications

Effect of Nanoclay Particles on the Performance of High-Density Polyethylene-Modified Asphalt Concrete Mixture

Effect of Nanoclay Particles on the Performance of High-Density Polyethylene-Modified Asphalt Concrete Mixture

Physicochemical and Rheological Properties of A Transparent Asphalt Binder Modified with Nano-TiO2

Experimental Characterization of Viscoelastic Behaviors of Nano-TiO2/CaCO3 Modified Asphalt and Asphalt Mixture

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