A multifunctional bio-agent for extraction of aged bitumen from siliceous surfaces

Shariati, Saba; Rajib, Amirul Islam; Fini, Elham H.

doi:10.1016/j.jiec.2021.08.047

Cited by 7 publications

(15 citation statements)

References 36 publications

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“…The acidity of bio-oil is a significant parameter for bitumen durability and moisture damage. 188 A hybrid bio-oil from swine manure (20% by weight) and algae (80% by weight) was produced and studied by Shariati et al 155 They reported that the resistance to moisture damage increased by introducing this hybrid bio-oil to bitumen. Generally, the main goal of using bio-oils in asphalt for reduction of moisture susceptibility is that they can improve the binding between bitumen and aggregate and prevent water penetration into the asphalt matrix.…”

Section: Moisture Susceptibilitymentioning

confidence: 99%

“…During aging, interfacial interactions between stones and bitumen increase, and self-aggregation of bitumen molecules takes place. The hybrid bio-oil could neutralize the polar interaction between silica and bitumen through hydrogen bonds, and the hybrid bio-oil would replace the bitumen on the surface of silica and help to desorb the aged bitumen …”

Section: Chemical Agingmentioning

confidence: 99%

“…The hybrid bio-oil could neutralize the polar interaction between silica and bitumen through hydrogen bonds, and the hybrid bio-oil would replace the bitumen on the surface of silica and help to desorb the aged bitumen. 155 Huang et al derived a viscous liquid bio-oil from epoxidized vegetable oil and added it to bitumen as a rejuvenator, in order to investigate its effect on rheological and chemical parameters. The biorejuvenator showed a bad effect on resistance to rutting.…”

Section: Chemical Agingmentioning

confidence: 99%

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Future Directions for Applications of Bio-Oils in the Asphalt Industry: A Step to Sequester Carbon in Roadway Infrastructure

2023

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The global emphasis on sustainability and net zero carbon roads combined with the increased cost of crude oil has necessitated the application of new environmentally friendly alternatives to the bitumen used in asphalt by the pavement industry. Physical aging, chemical aging, and moisture damage are three important matters encountered in the pavement industry that are harmful for asphalt; bio-oils can decelerate the rates of physical aging and chemical aging in virgin bitumen, and bio-oils can substantially improve virgin bitumen’s resistance to moisture damage. Bio-oils can also restore properties in environmentally damaged asphalt up to a certain limit of aging. The main goal of this review is a comprehensive analysis of the literature about the potential of bio-oils produced from different biomass sources to influence the physical aging, chemical aging, and moisture damage of asphalt. Considering that bitumen’s physical aging is highly impacted by the bitumen’s wax content, this review also covers the effect of wax inherently present in bitumen or wax added to bitumen as a modifier. It is concluded that the chemical composition of a bio-oil has a significant impact on the bio-oil’s ability to protect or recover the bitumen’s original properties. Phenolic compounds found in bio-oils have antiaging effects while bio-oils’ acidic compounds may lead to moisture susceptibility.According to the literature, most bio-oils have positive effects only in a specific range of temperatures: low, intermediate, or high. Complete miscibility and dispersion of a bio-oil in the asphalt matrix also have a significant influence on making a bio-oil an effective modifier. Generally, bio-oils are promising as sustainable, carbon-neutral, cost-effective alternatives to replace or modify conventional bitumen in the pavement industry. This review has identified the following critical research gaps: (1) the lack of standard methods for evaluating and reporting the performance characteristics of each bio-oil in bitumen; (2) the lack of long-term field performance data on bio-oils to support comprehensive life-cycle assessments and life-cycle analyses; (3) high variation among bio-oils made from the same feedstock through different processing methods, leading to variation in performance characteristics; (4) the lack of accurate technoeconomic analysis on industrial bio-oils to facilitate entry of bio-oils into the asphalt market.

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Section: Moisture Susceptibilitymentioning

confidence: 99%

Section: Chemical Agingmentioning

confidence: 99%

Section: Chemical Agingmentioning

confidence: 99%

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Future Directions for Applications of Bio-Oils in the Asphalt Industry: A Step to Sequester Carbon in Roadway Infrastructure

2023

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“…Bio-derived modifiers from renewable resources or waste streams have both environmental and economic benefits in construction industries. Recently, hybrid bio-oils derived from a mixture of plant-based and animal-based biomasses were introduced as eco-friendly modifiers to achieve higher-quality roads. , According to the literature, a hybrid bio-oil showed promising efficacy to alleviate the aging effect in bitumen . It could positively affect the intermolecular interactions between the different molecules in aged bitumen and the silicate aggregates.…”

Section: Introductionmentioning

confidence: 99%

Bio-Modifier: A Sustainable Suturing Technology at the Bitumen–Aggregate Interface

Shariati

Aldagari

Fini

2023

ACS Sustainable Chem. Eng.

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Premature failure at the bitumen−aggregate interface is attributed to the surface chemistry of stone aggregates. Bitumen modifiers with high affinity toward aggregates are often used to change the surface chemistry of aggregates, which in turn changes the type and strength of stones' interactions with bitumen.Here, the mechanisms of action and the effects of an organosilane and bio-oil separately on the bitumen−aggregate interface, including their binding to aggregates from one side and to bitumen from the other side, were studied and compared. The binding of bio-oils and organosilanes to aggregates is well documented, as well as their efficacy as anti-stripping agents, but their binding to bitumen is not well understood. Using glass beads as a surrogate for siliceous stones, we obtained laboratory measurements of interfacial strength as measured by resistance to shear forces at the interface of bitumen and silica. Our laboratory measurements showed the highest value for the bitumen modified with bio-oil, followed by the control bitumen with no modification, and the lowest value for the bitumen modified with organosilane. Our molecular modeling calculations showed that the adhesion of bitumen molecules to silica coated with bio-oil was notably stronger (up to 72%) than the adhesion of bitumen molecules to silica coated with organosilane. The higher interfacial strength observed for bitumen with bio-oil is attributed to bio-oil having various functional groups with the ability to form hydrogen bonds and π−π interactions with the aromatic and polar components of bitumen. The study outcomes highlight the importance of modifiers' ability to strongly interact with both aggregates and bitumen. The bio-oil modifier introduced in this work can form a robust bridge between bitumen and siliceous aggregates to improve the adhesive properties, enhancing the sustainability and durability of bituminous composites.

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“…Ding et al [ 38 ] concluded that C 20 H 42 can significantly increase thermoreversible aging in the base binder; however, C 32 H 66 and asphaltene additives did not produce a similar effect. Shariati et al [ 39 ] proposed a hybrid bio-oil rejuvenator, which can revitalize the aged binder by simultaneously desorbing and peptizing aged binder molecules. Heterocyclic HY molecules (1-butyl-Piperidine and N-methyl-2-Pyrrolidone) in this hybrid bio-oil rejuvenator play an important role, which can effectively improve the resistance of revitalized binder to moisture-induced damages.…”

Section: Introductionmentioning

confidence: 99%

Correlation Analysis between Mechanical Properties and Fractions Composition of Oil-Rejuvenated Asphalt

et al. 2022

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To clarify the intrinsic relationship between the mechanical properties of asphalt and its fraction composition, the SARA fraction composition and six macroscopic mechanical properties (critical cracking temperature (TCR), fatigue life (Nf), non-recoverable creep (Jnr3.2), penetration, ductility, and softening point) were investigated for 16 asphalt samples. Fraction contents of asphaltene and aromatic are strongly correlated with TCR and ductility (R2 > 0.92) that characterize the ability of asphalt to adapt to deformation at low and medium temperatures. Heavy fraction (asphaltene and resins) content is also strongly correlated with (R2 > 0.90) penetration and Jnr3.2 that characterize the resistance of the asphalt to overall deformation at medium and high temperatures. To express the changes in the four fractions simultaneously with one indicator, a statistic, average deviation of the fractions between the given asphalt and its original (marked σ), is introduced in this study to characterize the degree of asphalt aging based on the fraction changes. It normalizes the four simultaneous change indicators (percentage of SARA fractions) during asphalt aging into one indicator. This new indicator has a strong correlation with several mechanical performance indicators of asphalt, where it is strongly correlated with TCR (R2 > 0.90), ductility, and penetration, which are also well correlated with Jnr3.2 (R2 > 0.85), Nf (R2 > 0.75), and softening point (R2 > 0.75).

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A multifunctional bio-agent for extraction of aged bitumen from siliceous surfaces

Cited by 7 publications

References 36 publications

Future Directions for Applications of Bio-Oils in the Asphalt Industry: A Step to Sequester Carbon in Roadway Infrastructure

Future Directions for Applications of Bio-Oils in the Asphalt Industry: A Step to Sequester Carbon in Roadway Infrastructure

Bio-Modifier: A Sustainable Suturing Technology at the Bitumen–Aggregate Interface

Correlation Analysis between Mechanical Properties and Fractions Composition of Oil-Rejuvenated Asphalt

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