Effect of property deterioration in SBS modified binders during storage on the performance of asphalt mix

Islam, Sk Sohel; Singh, Sumit; Ravindranath, Sham S.

doi:10.1016/j.conbuildmat.2020.121644

Cited by 27 publications

(9 citation statements)

References 44 publications

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“…Asphalt pavement is widely popular among road construction departments in various countries because of its smooth surface, low tire noise, short construction period, and other advantages [1,2]. However, asphalt binder development and asphalt pavement development complement each other [3][4][5][6]. Increasing vehicle loads and deteriorating ambient temperatures cause frequent damage to asphalt pavements [7].…”

Section: Introductionmentioning

confidence: 99%

Effect of Recycled Shell Waste as a Modifier on the High- and Low-Temperature Rheological Properties of Asphalt

Guo

Wang

et al. 2021

Sustainability

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The deteriorating ecological environment and the concept of sustainable development have highlighted the importance of waste reuse. This article investigates the performance changes resulting from the incorporation of shellac into asphalt binders. Seashell powder-modified asphalt was prepared with 5%, 10%, and 15% admixture using the high-speed shear method. The microstructure of the seashell powder was observed by scanning electron microscope test (SEM); the physical-phase analysis of the seashell powder was carried out using an X-ray diffraction (XRD) test; the surface characteristics and pore structure of shellac were analyzed by the specific surface area Brunauer-Emmett-Teller (BET) test; and Fourier infrared spectroscopy (FTIR) qualitatively analyzed the composition and changes of functional groups of seashell powder-modified asphalt. The conventional performance index of seashell powder asphalt was analyzed by penetration, softening point, and ductility (5 °C) tests; the effect of seashell powder on asphalt binder was studied using a dynamic shear rheometer (DSR) and bending beam rheometer (BBR) at high and low temperatures, respectively. The results indicate the following: seashell powder is a coarse, porous, and angular CaCO3 bio-material; seashell powder and the asphalt binder represent a stable physical mixture of modified properties; seashell powder improves the consistency, hardness, and high-temperature performance of the asphalt binder but weakens the low-temperature performance of it; seashell powder enhances the elasticity, recovery performance, and permanent deformation resistance of asphalt binders and improves high-temperature rheological properties; finally, seashell powder has a minimal effect on the crack resistance of asphalt binders at very low temperatures. In summary, the use of waste seashells for recycling as bio-modifiers for asphalt binders is a practical approach.

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Section: Introductionmentioning

confidence: 99%

Effect of Recycled Shell Waste as a Modifier on the High- and Low-Temperature Rheological Properties of Asphalt

Guo

Wang

et al. 2021

Sustainability

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“…For embodiments, the weight fractions of each component in component A and component B are shown in Table 1-3, and the specific process parameters are shown in Table 4.Componentsa and b of each embodiment were evenly mixed according to the weight ratio of 1:0.7-1.3, and tested at 25℃ and 56% humidity after the performance of the repair agent was stable. The performance test results are shown in Table 5 [11]- [12] . antioxidants, the polymerization reaction of the two polyether polyols is promoted, which improves the flexibility and bonding strength of the polymer products, and inhibits foaming.…”

Section: Performance Analysismentioning

confidence: 99%

Preparation and property analysis of polyether polyol two-component rubber repair material

Nie

Liu

2022

J. Phys.: Conf. Ser.

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In order to solve the problem that the damage of rubber material cannot be repaired quickly and conveniently, this paper studies a repairing agent that is easy to use and repairs quickly.The modifier is composed of A and B components. The A component can be obtained by blending polyether polyol 330N, chain extender, diethylene glycol, 330NH18 slurry, 330N acetylene black slurry, dioctyl phthalate DOP, catalyst, antioxidant, silane coupling agent and defoaming agent at room temperature and vacuum.The mixture of polyether polyol GE220, 220H18 and dioctyl phthalate DOP, MDI-3051 and MDI-100LL at room temperature and vacuum was used to obtain component B.When using, mix A and B components by 1:0.7-1.3.The repair agent is simple to prepare and easy to use, and can be used for repairing any type of rubber damage. It is not limited by space and shape of rubber parts. It can be formed in 1 minute, have strength in 8 minutes, reach 80% strength in 2 hours and put into use.

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“…The effect of NS on polymer-modified bitumen mixtures was assessed via resilient modulus (MR) and dynamic creep tests, which demonstrated improved age reduction and enhancement in the fatigue and permanent deformation resistance with decreased water sensitivity [8]. The influence of an SBS-modified asphalt mixture with 4.5% optimum content was examined for storage and performance, which concluded that bitumen lost its performance significantly at high temperatures while storability was improved with the use of SBS [9]. A case study was conducted to determine the impact of NS on a polypropylene-modified bitumen mixture via the four-point beam test, fatigue test, indirect tensile strength (ITS) test, and stiffness modulus test, with the conclusion of noticeable effects on the performance of the modified HMA [10].…”

Section: Introductionmentioning

confidence: 99%

Engineering Characteristics of SBS/Nano-Silica-Modified Hot Mix Asphalt Mixtures and Modeling Techniques for Rutting

Khan,

Khattak,

Bahrami

et al. 2023

Buildings

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Flexible pavements are mostly affected by meteorological factors in addition to traffic loads, which results in premature pavement failures like rutting and moisture-induced damage. This study focuses on the impacts of adding various contents of nano-silica (NS), i.e., 2%, 4%, 6%, and 8% (percentage weight of asphalt), along with a constant value of 4.5% styrene-butadiene-styrene (SBS). To assess the effectiveness of modified and unmodified mixtures, the indirect tensile strength (ITS) test, resilient modulus (MR) test, and wheel tracking test were conducted. The MR test was performed at dual temperature values, i.e., 25 °C and 40 °C, and demonstrated different metrological conditions in this region. The tensile strength ratio was used to estimate the mitigation of water losses in hot mix asphalt (HMA) mixtures (specimens) utilizing ITS test results of the conditioned and unconditioned specimens. Moreover, a model was developed for the rutting potential of the modified specimens using multi expression programming (MEP), a sophisticated technique that employs experimental data and suggests an equation for different input variables. The results indicated that the addition of NS to SBS-modified bitumen enhanced different mechanical properties of the specimens, including the stiffness and moisture and rutting resistances. The temperature had adverse effects on the stiffness of the specimens, while the modifiers had a direct relationship with the stiffness. The two-way factorial method justified the effect of the temperature and modifiers on MR with 95% precision, while the MEP model for rutting showed an R2 value of >0.95, which revealed a good relationship between the experimental and predicted data. Furthermore, NS and SBS had a good impact on the mechanical properties of the HMA specimens.

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Effect of property deterioration in SBS modified binders during storage on the performance of asphalt mix

Cited by 27 publications

References 44 publications

Effect of Recycled Shell Waste as a Modifier on the High- and Low-Temperature Rheological Properties of Asphalt

Effect of Recycled Shell Waste as a Modifier on the High- and Low-Temperature Rheological Properties of Asphalt

Preparation and property analysis of polyether polyol two-component rubber repair material

Engineering Characteristics of SBS/Nano-Silica-Modified Hot Mix Asphalt Mixtures and Modeling Techniques for Rutting

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