Effects of crumb rubber and styrene-butadiene rubber additives on the properties of asphalt binder and the Marshall performance properties of asphalt mixtures

Khan, Diyar; Ali, Basit; Li, Peilong; Mohd Hasan, Mohd Rosli; Karim, Fazli; Khan, Noman

doi:10.35784/bud-arch.5499

Cited by 3 publications

(3 citation statements)

References 26 publications

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“…An additive significantly affected the characteristics of the asphalt binder. Laboratory tests, including the Marshall test, were conducted to identify the optimum bitumen content (OBC) for the hot mix [24]. The Marshall mix-design technique was used to create hot mix asphalt mixes, with increasing proportions of recycled aggregates replacing coarse virgin aggregates (0%, 25%, 50%, and 75%).…”

Section: Experimental Program 21 Materials Selectionmentioning

confidence: 99%

Analysis of viscoelastic behaviour in asphalt pavement through four-point beam bending tests

Jamal,

Khan,

Khan

et al. 2024

Bud-Arch

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This study, conducted in accordance with ASTM T321-14 standards, offers crucial insights into the behaviour of asphalt materials subjected to cyclic loading. For proper maintenance and pavement design, it is essential to understand the material response under different loading conditions. This study focuses on the four-point beam bending test to investigate the viscoelastic behaviour of asphalt pavement. The four-point beam bending test is a useful method for determining the material's ability to withstand cyclic loading and deformation, which the material experiences during field traffic conditions. The experimental setup involves subjecting asphalt samples to cyclic loading using a four-point bending apparatus. The imposed load causes the specimen to experience bending strains, representing the actual loading conditions that pavements endure. The data gathered during testing include stress, strain, and deformation properties under various loading conditions. The stress-strain response demonstrates the material's resilience to fatigue, with a gradual decrease in stiffness beyond 10,300 cycles. Fatigue failure criteria include a 50% reduction in initial stiffness for strain-controlled fatigue tests and cracking in stress-controlled tests. The dynamic modulus in a compressive-type, repeated load test follows a three-phase pattern, highlighting the impact of temperature and binder characterization methods on sample performance. The results provide information about the material's resilience to rutting and fatigue cracking, the most significant distresses indicated in asphalt pavements. The findings from this study contribute to an in-depth understanding of the viscoelastic behaviour of asphalt pavement and can aid in the development of improved design guidelines and maintenance strategies characterizing the material response to cyclic loading. Engineers and researchers can make better decisions on the durability and performance of asphalt pavements, resulting in more cost-effective and sustainable road infrastructure.

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Section: Experimental Program 21 Materials Selectionmentioning

confidence: 99%

Analysis of viscoelastic behaviour in asphalt pavement through four-point beam bending tests

Jamal,

Khan,

Khan

et al. 2024

Bud-Arch

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“…The addition of Styrene Butadiene Rubber (SBR) latex to RAP mixes has been shown to enhance their viscoelastic properties, improve resistance to moisture damage, reduce rutting, and mitigate low-temperature cracking [31]. Results have shown that increasing CR and SBR improves strength, with an optimal mix containing 5% CR and 4% SBR [32]. The properties of the bituminous concrete mixture can be increased even more by including waste plastic [33].…”

Section: Introductionmentioning

confidence: 99%

Badanie wpływu recyklingowych dodatków z odpadowego oleju silnikowego i oleju roślinnego na właściwości starzonego w laboratorium bitumu

Ali,

Li,

Khan

et al. 2024

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The pavement recycling method is one of the practical ways to integrate sustainable development into transportation infrastructure, and it has been adopted worldwide. The use of reclaimed asphalt pavement (RAP) in new asphalt highways is limited due to the ageing effects caused by UV damage and weathering on the asphalt binder. To address this issue, waste vegetable oil (WVO) and waste engine oil (WEO) have been proposed as potential rejuvenating agents to enhance the recyclability of pavements containing RAP. This study evaluated the effectiveness of WEO and WVO as chemical rejuvenating agents through various tests on both aged and virgin asphalt binders. The tests included measurements of ductility, fire, and flash points, softening points, and penetration. The results indicate that the addition of WEO and WVO can improve the low-temperature properties of asphalt binders when mixed with RAP, resulting in reduced stiffness. The mixture containing WEO and WVO exhibited improved stability compared to the control, suggesting enhanced flow with increasing waste oil content in comparison to aged binder, albeit with slightly reduced flow compared to the virgin binder. This study demonstrates the potential of WEO and WVO as recycling agents to enhance the performance of bituminous mixes incorporating RAP.

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“…Bio-oil modified binder was derived from diverse sources such as maize stalks, oak wood, shredded grass, and crumb rubber. These variants were utilized to modify both virgin binder and styrene–butadiene–styrene (SBS) incorporated binder 17 , 18 . Bio-oil modified binder from cedar sawdust, representing 9%, 6%, and 3% of the total binder mass, was incorporated into the specimens.…”

Section: Introductionmentioning

confidence: 99%

Bio-oil modified binder derived from cotton stalks as an eco-friendly alternative binder for flexible pavements

Ullah,

Zaidi,

Khan

et al. 2024

Sci Rep

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Scientists and engineers encounter considerable environmental and economic obstacles stemming from the depletion of crude oil or petroleum fossil fuel reservoirs. To mitigate this challenge, alternative solutions like bio-oil-modified binder derived from biomass have been innovated. This research aims to examine the feasibility of using bio-oil-modified binder obtained from cotton stalk waste as a modifier. Various mechanical and physical tests, including penetration, softening point, ductility, and dynamic shear rheometer tests, were conducted on asphalt binder incorporating 5% and 10% bio-oil-modified binder. Wheel tracker, four-point beam fatigue, and dynamic modulus tests were used to evaluate asphalt mixture performance, including rutting, fatigue, and dynamic stiffness. A rolling bottle test (RBT) and asphalt binder bond strength (BBS) were used to assess moisture susceptibility. A bio-oil-modified binder enhanced ductility and penetration characteristics while reducing the softening point. With the addition of a bio-oil-modified binder, stiffness was reduced in parameters such as complex shear modulus and phase angle. In fact, for both specimens containing 5% and 10% bio-oil-modified binder, statistically significant differences were observed among the measured samples. As a result of this reduced stiffness, the modified asphalt binder is more suitable for low-temperature applications. Additionally, 5.8% increased at 10% and 3.1% at 5% CS. Bio-oil-modified binder, compared to virgin mixtures, supports equal rut resistance. However, the RBT and BBS tests revealed that the addition of bio-oil-modified binder increased the susceptibility of conventional asphalt binder to moisture. The findings suggest that bio-oil-modified binder can enhance asphalt binder properties in low-temperature regions, but further research is needed to improve moisture resistance.

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Effects of crumb rubber and styrene-butadiene rubber additives on the properties of asphalt binder and the Marshall performance properties of asphalt mixtures

Cited by 3 publications

References 26 publications

Analysis of viscoelastic behaviour in asphalt pavement through four-point beam bending tests

Analysis of viscoelastic behaviour in asphalt pavement through four-point beam bending tests

Badanie wpływu recyklingowych dodatków z odpadowego oleju silnikowego i oleju roślinnego na właściwości starzonego w laboratorium bitumu

Bio-oil modified binder derived from cotton stalks as an eco-friendly alternative binder for flexible pavements

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