Experimental analysis of the influence of SBS/nanoclay addition on asphalt fatigue and thermal performance

Rooholamini, Hamed; Imaninasab, Reza; Vamegh, Mostafa

doi:10.1080/10298436.2017.1321414

Cited by 19 publications

(8 citation statements)

References 16 publications

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“…e results indicate that using both of these modifiers at the same mixture considerably increases the stiffness in asphalt mixture. Table 5, rutting decreases in the mixtures containing both modifiers (N2S4 and N3S3) more than that in the SBR-modified mixture which is mainly due to nanoparticles penetration into the SBR matrix structure in the nanoscale and more microstructural resistance against permanent deformation [30]. erefore, it can be inferred that nanoclay and its combination with SBR lead to greater rutting resistance compared to the SBR-modified and neat asphalt mixes.…”

Section: Wheel Track Testmentioning

confidence: 93%

Investigating Effects of Nano/SBR Polymer on Rutting Performance of Binder and Asphalt Mixture

Ameri

Vamegh

Rooholamini

et al. 2018

Advances in Materials Science and Engineering

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Rutting is one of the most common distresses in flexible pavements and can affect vehicle controlling features. Although asphalt binder constitutes a small percentage of the asphalt mixture, its properties play a crucial role in pavement performance and its rutting resistance. One way of improving binder properties and rutting resistance is to use additives. In this research, nanoclay and SBR polymer have been simultaneously used to modify 60–70 penetration binder to study rutting resistance of binder and asphalt mixture. To this end, the storage stability, rotational viscosity, DSR, and RCR tests on binder and marshal stability were performed, and dynamic creep and wheel track tests on asphalt mix were performed to assess rutting performance. The test and statistical analysis results indicated that nanoclay has considerably positive impact on rutting and elastic deformation of neat and SBR-modified asphalt binder and mixture.

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Section: Wheel Track Testmentioning

confidence: 93%

Investigating Effects of Nano/SBR Polymer on Rutting Performance of Binder and Asphalt Mixture

Ameri

Vamegh

Rooholamini

et al. 2018

Advances in Materials Science and Engineering

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“…Therefore, utilizing modified asphalt concrete (AC) mixtures for roadway construction has gained remarkable attention due to their superior performance compared to the traditional ones [ 1 , 2 ]. Polymers are among the most prevalent asphalt modifiers due to their ability to enhance AC mixture stiffness, visco-elastic behaviour, and durability at various temperatures [ 3 , 4 , 5 , 6 , 7 ]. Thus, polymer-modified AC mixtures exhibited a noticeable resistance to thermal cracking, rutting, as well as water and fatigue damages.…”

Section: Introductionmentioning

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 ].…”

Section: Introductionmentioning

confidence: 99%

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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“…The effect of the wax depends on the chemical composition and rheological properties of the asphalt binder, the crystallinity of the wax, the range of applied temperature, and the amount of wax [29]. Utilizing polymers modified asphalt (PMA) for roadway construction has earned remarkable attention due to their superior performance, including thermal-crack resistance, moisture susceptibility, and rutting resistance [30][31][32][33][34][35][36]. However, polymer-modified asphalt mixtures require high mixing and compacting temperatures, increasing energy consumption and exhaust emissions [37].…”

Section: Introductionmentioning

confidence: 99%

Performance Investigation of Hot- And Warm- Asphalt Mixtures Modified With Superplast

Moussa

Sallam²,

Younis

2021

JES. Journal of Engineering Sciences

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Moisture and stripping damages are the most prevalent cause of defects of both Hot-Mix Asphalt (HMA) and Warm-Mix Asphalt (WMA). Adhesion between aggregates and bitumen is a crucial factor that affects such defects. Various methods, such as incorporating additives, have strengthened the asphalt mixture's resistance to moisture and stripping. This paper aimed to experimentally investigate the effect of including a low-cost polymer additive (Superplast) into HMA and WMA mixtures. For this goal, a 60/70 penetration grade bitumen was used. For preparing the WMA mixtures, Showax was employed with percentages of 2, 3, 4, 5, and 6% by weight of bitumen. Polymer modified mixtures (HMA and WMA) were prepared by adding 3%, 4, and 5% 680 Ghada S. Moussa et al., Performance Investigation of Hot-And Warm-Asphalt Mixtures ……….of Superplast by weight of the binder. Performance characterizations of the unmodified and Superplast-modified mixtures include stiffness, moisture damage resistance, and bonding. These characteristics were evaluated via Marshall, Lottman, and Double Punching tests, respectively. Results revealed that incorporating Superplast improved the adhesion between bitumen and aggregates, which ultimately led to an increase in the stiffness and moisture resistance of both HMA and WMA. Moreover, Superplast-modified WMA mixtures exhibited the best moisture and stripping resistance performance compared to Superplast-modified HMA and other unmodified mixtures.

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Experimental analysis of the influence of SBS/nanoclay addition on asphalt fatigue and thermal performance

Cited by 19 publications

References 16 publications

Investigating Effects of Nano/SBR Polymer on Rutting Performance of Binder and Asphalt Mixture

Investigating Effects of Nano/SBR Polymer on Rutting Performance of Binder and Asphalt Mixture

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

Performance Investigation of Hot- And Warm- Asphalt Mixtures Modified With Superplast

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