Performance Test on Styrene-Butadiene-Styrene (SBS) Modified Asphalt Based on the Different Evaluation Methods

Zhang, Chen; Wang, Hainian; You, Zhanping; Gao, Junfeng; Irfan, Muhammad

doi:10.3390/app9030467

Cited by 44 publications

(15 citation statements)

References 18 publications

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“…1 Moreover, modifying asphalt binders with different concentrations of styrene-butadiene-styrene (SBS) polymer significantly improved the binder rheological properties under high and low temperatures. [21][22][23][24][25] Zhang et al 26 found that SBS-modified binders improved the rutting parameter (G*/sind) after short-term aging by an average of 48.01% to 91.10% using multiple concentrations of SBS polymer and under different temperatures. Al-Dubabe et al 27 concluded that, at 70°C, a 6% SBS-modified binder had a G*/sin d value of 4.312 kPa compared to 0.74 kPa for neat asphalt binder after short term aging.…”

Section: Literature Reviewmentioning

confidence: 99%

Mechanistic-empirical evaluation of specific polymer-modified asphalt binders effect on the rheological performance

et al. 2020

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Major distresses such as rutting, fatigue, and thermal cracking are facing asphalt pavement structures due to continuous heavy traffic loading and climate change. The modification of asphalt binders (one of the main components of the asphalt paving mix) has the potential to mitigate distresses through using different additives. Polymer modified asphalt (PMA) binders showed a noticeable resistance to pavement distresses as reported in previous studies. The present study aims to evaluate the effect of polymer modification on the rheological properties of asphalt binders through laboratory tests. The polymers included styrene-butadiene-styrene (SBS) and epolene emulsifiable (EE2) types. The 60/70 binder was used as a control for comparison. The Mechanistic-Empirical Pavement Design Guide (MEPDG) was also utilized to simulate the effect of PMA binders on the rheological properties under different climatic conditions and structural capacities. Additionally, the MEPDG was further utilized to compare the effect of asphalt binders on rheological properties using four different binder input levels. Findings of the study showed that laboratory tests experienced varying outcomes regarding the most efficient asphalt binder by means of distresses resistance. However, the MEPDG evaluation showed that the overall ranking of asphalt binders positively impacting the rheological properties was as following: (1) 4.5% EE2 PMA, (2) 4% EE2 PMA, (3) 60/70 binder, (4) 5% SBS PMA, and (5) 4% SBS PMA binders. Furthermore, statistical analysis illustrated that the effect of using different binder input levels on the performance of pavement varied relatively to the evaluated distresses. The analysis showed that using different binder input levels would affect, to a certain extent, the asphalt binder influence on rheological properties only when evaluating rutting and fatigue distresses. Therefore, it is recommended that precise asphalt binder inputs, that is, shear complex modulus (G*) and phase angle (δ) are used when designing pavement structures in regions with hot and mild climate conditions.

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Section: Literature Reviewmentioning

confidence: 99%

Mechanistic-empirical evaluation of specific polymer-modified asphalt binders effect on the rheological performance

et al. 2020

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“…For a long time, anti-rutting factor G*/sinδ has been considered an acclaimed index for the evaluation of the high temperature performance of asphalt binders, but there are some limitations in representing the high-temperature performance of modified asphalt binder [22,23]. Therefore, it is proposed in the NCHRP9-10 report of the U.S. to evaluate the high temperature performance of modified asphalt binder with repeated creep recovery tests [24].…”

Section: Repeated Creep Recovery Testmentioning

confidence: 99%

Performance of Warm-Mixed Flame Retardant Modified Asphalt Binder

Zhang

et al. 2019

Applied Sciences

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In order to analyze the effect of flame retardant and warm mix asphalt (WMA) additives-Sasobit on the flame-retardant performance and pavement performance of asphalt binder, the limiting oxygen index test, conventional performance test, and Superpave evaluation index tests were performed on asphalt binders in the study. The test results show that flame retardant can effectively improve the flame resistance of asphalt binder, while Sasobit has a certain combustion-supporting effect. Therefore, when warm-mixed flame-retardant technology is applied, the concentration of Sasobit should be controlled appropriately. These two modifiers can significantly enhance the high-temperature performance of asphalt binder, but both of them have a slight negative influence on the low-temperature cracking resistance. Sasobit can substantially reduce the high-temperature viscosity of asphalt binder, which helps to improve the construction workability of asphalt binder, while the flame retardant adversely affects the viscosity reduction effect of Sasobit to a certain extent, but the overall impact is not large.

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“…Modification of paving-grade bitumens with elastomers improves their elastic properties. The softening point increases, penetration decreases, viscosity increases in the service temperature range and the Fraass breaking point slightly decreases [ 19 , 20 , 21 ]. These changes considerably improve the properties of asphalt mixtures containing polymer modified bitumens [ 22 ], including higher resistance to permanent deformation [ 23 , 24 ], higher fatigue resistance [ 25 , 26 , 27 ] and better low temperature performance [ 28 , 29 ].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Tensile Properties of Styrene–Butadiene–Styrene Modified Asphalt Binders

et al. 2021

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The requirements imposed on road pavements are ever increasing nowadays, necessitating the improvement of the properties of paving materials. The most commonly used paving materials include bituminous mixtures that are composed of aggregate grains bound by a bituminous binder. The properties of bitumens can be improved by modification with polymers. Among the copolymers used for modifying bitumens, styrene–butadiene–styrene, a thermoplastic elastomer, is the most commonly used. This article presents the results of tests conducted on bitumens modified with two types of styrene–butadiene–styrene copolymer (linear and radial). Two bitumen types of different penetration grades (35/50 and 160/220) were used in the experiments. The content of styrene–butadiene–styrene added to the bitumen varied between 1% and 6%. The results of the force ductility test showed that cohesion energy can be used for qualitative evaluation of the efficiency of modification of bitumen with styrene–butadiene–styrene copolymer. The determined values of the cohesion energy were subjected to the original analysis taking into account the three characteristic elongation zones of the tested binders. The performed analyses made it possible to find a parameter whose values correlate significantly with the content of styrene–butadiene–styrene copolymer in the modified bitumen. With smaller amounts of added modifier (approximately 2%), slightly better effects were obtained in the case of linear copolymer styrene–butadiene–styrene and for larger amounts of modifier (5–6%) radial copolymer styrene–butadiene–styrene was found to be more effective. This is confirmed by the changes in the binder structure, as indicated by the penetration index (PI).

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Performance Test on Styrene-Butadiene-Styrene (SBS) Modified Asphalt Based on the Different Evaluation Methods

Cited by 44 publications

References 18 publications

Mechanistic-empirical evaluation of specific polymer-modified asphalt binders effect on the rheological performance

Mechanistic-empirical evaluation of specific polymer-modified asphalt binders effect on the rheological performance

Performance of Warm-Mixed Flame Retardant Modified Asphalt Binder

Experimental Study of Tensile Properties of Styrene–Butadiene–Styrene Modified Asphalt Binders

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