Effect of HDPEH polymer on viscoelastic properties of SBS modified asphalt

Swamy, Aravind Krishna; Rongali, Uma Devi; Jain, Pramod Kumar

doi:10.1016/j.conbuildmat.2017.01.049

Cited by 19 publications

(11 citation statements)

References 20 publications

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“…e difference between the viscosity of the two binders vanishes at higher temperatures as shown in Figure 4. e increase in binder viscosity due to the addition of geopolymer materials was reported by previous scholars [1,28,32]. Asphalt binders with high viscosity achieve excellent weather resistance and provide strong binding forces between aggregates.…”

Section: Effects Of Geopolymer On Viscositymentioning

confidence: 79%

Evaluating Fly Ash‐Based Geopolymers as a Modifier for Asphalt Binders

Hamid

Alfaidi

Baaj

et al. 2020

Advances in Materials Science and Engineering

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Severe Canadian winter conditions and growing traffic volumes are vital factors resulting in a reduction of the service life of flexible pavements. Researchers and engineers strived to develop several additives to develop balanced asphalt mixers capable of resisting distresses that caused deterioration of flexible pavements in Canada. In this study, a critical literature review regarding the use of geopolymers and their application in construction materials is provided. Moreover, an experimental matrix of laboratory testing was conducted to study the rheological and microstructural properties of the PG 58-28 asphalt binder, with different percentages (0%, 3%, 6%, and 9%) of geopolymer. The effect of geopolymer-curing time on rheological properties was investigated. Rotational viscometer, dynamic shear rheometer (DSR), and environmental scanning electron microscopy (ESEM) imaging devices were used to compare the performance of control binder with a binder with different percentages of geopolymers. Results indicated that the increase in the geopolymer content and the curing time affect the rheological behavior of the asphalt binder by increasing its viscosity, complex shear modulus, and failure temperature. Samples with higher geopolymer percentage exhibited better performance in terms of rutting resistance. Moreover, an increase in the failure temperature of modified asphalt binder with 9% geopolymer is recorded as 8.58%, 14.2%, and 15.2% for curing times of 2, 7, and 14 days, respectively, compared with virgin asphalt. Furthermore, the nanoparticles appear to be well dispersed in the binder, and increasing the percentage of the geopolymer does not seem to affect the microstructure of the binder. Overall research conclusion is that geopolymer application resulted in a potential enhancement of some of the properties of the asphalt binder.

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Section: Effects Of Geopolymer On Viscositymentioning

confidence: 79%

Evaluating Fly Ash‐Based Geopolymers as a Modifier for Asphalt Binders

Hamid

Alfaidi

Baaj

et al. 2020

Advances in Materials Science and Engineering

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“…As the amount of polymer added increases, the complex modulus rises and the phase angle decreases [10,97,99]. Furthermore, in mixtures that combine polyethylene (PE) with another polymer, the G*/sinδ value rises as the percentage of this polymer increases [96,100], giving way to a higher rutting resistance and increasing the service life of pavements at high temperatures.…”

Section: Effect Of Reclaimed Polymer Combinationsmentioning

confidence: 99%

Reclaimed Polymers as Asphalt Binder Modifiers for More Sustainable Roads: A Review

et al. 2019

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The use of polymer-modified binders in asphalt mixtures has become more widespread due to their reduced thermal susceptibility and improved rutting and fatigue resistance. Nevertheless, their high cost limits their application, thus making the use of reclaimed polymers (RP) an interesting alternative for both reducing price and extending the service life of pavements. This paper; therefore, presents a comparative review of the recycled polymers most commonly studied as bitumen modifiers: polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), ethyl vinyl acetate (EVA), and ground tire rubber (GTR), in order to facilitate their selection and extend the use of the bitumen. The differences in terms of melting point, mixing conditions, and maximum quantity of added polymer are analyzed. Moreover, their effect on the mechanical behavior of the asphalt binders and their stability with and without the use of additives is presented. According to the literature revision, the performance of the new binder is more influenced by the kind of polymer that was incorporated and the mixing conditions than by the base bitumen that was chosen, although rheological evaluation is needed to fully understand the modification mechanisms of the modified binder. In general terms, plastomers have a stronger effect in terms of increasing the stiffness of the bitumen in comparison with crumb rubber (elastomers), thus providing an improved rutting resistance. The joint use of polyethylene (plastomer) and crumb rubber (elastomer) can be an interesting option for its recycling potential and mechanical performance, although further study is needed to achieve stable bitumen across the entire range of temperatures; additives, such as maleic anhydride (MA), are commonly employed to improve the stability of the binder and enhance its characteristics, but their use could limit the economic benefits of using recycled materials.

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“…When SBS is mixed with hot asphalt, the PS end blocks begin to soften while PB mid blocks start absorbing the maltene component present in asphalt and begin to swell. Cooling of this blend leads to the formationof strong, elastic and three-dimensional network of polymers within asphalt (Swamy et al, 2017). Many researchers have shown their interest in studying the properties of the modified binders and evaluating their advantage over the conventional asphalt.…”

Section: ‫ـــــــــــــــــــــــــــــــــــــــــــــــــــــــــــmentioning

confidence: 99%

Storage Stabilityand Compatibility of Dura Asphalt Modified by SBS

Saad¹,

Abdelzaher²

2019

RJS

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The purpose of this study was to characterize the physical behaviour of Dura asphalt modified by styrene-butadiene-styrene (SBS)co-polymer. The polymer modified asphalt (PMA) was produced by mixing a 40/60 penetration grade Dura (base) asphalt withdifferent ratios of the copolymers. The resultsthus exhibited that the modification of the authentic asphalt by SBS had great impact on the physical properties of the asphalt. Furthermore, the high temperature performance of the original asphalt was enhancedsuch that the morphology observed by microscope examinationrevealed the compatibility between SBS and asphalt. Additionally,the storage stability of the binder was significantly improved in comparison with Dura asphalt.

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Effect of HDPEH polymer on viscoelastic properties of SBS modified asphalt

Cited by 19 publications

References 20 publications

Evaluating Fly Ash‐Based Geopolymers as a Modifier for Asphalt Binders

Evaluating Fly Ash‐Based Geopolymers as a Modifier for Asphalt Binders

Reclaimed Polymers as Asphalt Binder Modifiers for More Sustainable Roads: A Review

Storage Stabilityand Compatibility of Dura Asphalt Modified by SBS

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