A review on the usage of waste engine oil with aged asphalt as a rejuvenating agent

Al-Saffar, Zaid Hazim; Yaacob, Haryati; Satar, Mohd Khairul Idham Mohd; Kamarudin, Siti Nur Naqibah; Mahmud, Mohd Zul Hanif; Ismail, Che Ros; Hassan, Sitti Asmah; Mashros, Nordiana

doi:10.1016/j.matpr.2020.12.330

Cited by 13 publications

(8 citation statements)

References 42 publications

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“…It can be observed, adding the RAP binder to a virgin binder enhances the stiffness, which makes the binder less susceptible to temperature owing to a the higher asphaltene content. Furthermore, the aromatics in the WEO-CR rejuvenator led to the development and incorporation of the asphaltene diffusion medium, which acts as a lubricant in the colloidal structure [15]. As a consequence, aromatics can reduce viscosity and soften asphalt binders.…”

Section: Physical Properties Of Asphalt Binder Samplesmentioning

confidence: 99%

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Effects of waste engine oil and crumb rubber rejuvenator on the performance of 100% RAP binder

Eltwati¹,

Enieb

AHMEED³

et al. 2022

Journal of Innovative Transportation

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Section: Physical Properties Of Asphalt Binder Samplesmentioning

confidence: 99%

“…However, the acidity and viscosity of WEO have a major concern of the rejuvenation process [13], therefore quality control in WEO is a critical issue [14]. Furthermore, the WEO-rejuvenated binders revealed a significant moisture sensitivity due to weak adhesion [15].…”

Section: Introductionmentioning

confidence: 99%

Effects of waste engine oil and crumb rubber rejuvenator on the performance of 100% RAP binder

Eltwati¹,

Enieb

AHMEED³

et al. 2022

Journal of Innovative Transportation

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“…Al-Saffar et al [72] reported that low WEO content was an effective rejuvenator, as high amount of WEO can permanently deform asphalt blend. They concluded that, as WEO was susceptible to ageing, WEO-asphalt blend could suffer from ageing due to low fatigue resistance.…”

Section: Rejuvenation Of Recycled Asphalt Using Refined Crude-oilsmentioning

confidence: 99%

“…They should display neither evaporation nor exudation to ascertain exceptional performance in asphalt pavement based on the regulated specification [21]. A rejuvenator should satisfy the conditions listed below [72]:…”

Section: Selection Of Rejuvenatormentioning

confidence: 99%

A Review on the Durability of Recycled Asphalt Mixtures Embraced with Rejuvenators

et al. 2021

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Reclaimed asphalt pavement (RAP) has received much attention recently due to its increased use in hot mix asphalt (HMA) pavements to enhance pavement sustainability. The use of aged asphalt in RAP, which is highly oxidised and has lost its properties due to exposure to traffic loads and climatic conditions throughout its lifespan, can cause asphalt mixtures to stiffen and embrittle, thus negatively affecting the behaviour of asphalt mixtures. This issue may be resolved by including rejuvenating agents that can restore both physical and rheological properties of aged asphalt by increasing maltene fractions and decreasing asphaltene. However, the high restoration capacity of any kind of rejuvenating agent does not assure the durability of restored aged asphalt. This study explored the performance and durability of rejuvenated asphalt mixtures embedded with several types of rejuvenators identified from the extensive literature review. The study serves as a significant reference to predict future challenges in rejuvenating aged asphalt.

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“…In addition, considering some cold regions such as Ontario and Canada, the addition of motor oil or petroleum-based oil to hard asphalt to configure soft asphalt for low-temperature applications is an economical and efficient solution [ 21 ]. However, the types and amount of fractions added in these methods are still based on experimental experience, and it is unclear whether the addition of new fractions changes properties other than those targeted [ 22 ]. For example, in the use of waste engine oil modified asphalt, there have been cases where additional magnesium and iron ions have promoted the oxidation of the asphalt, leading to increased aging [ 23 , 24 ].…”

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 review on the usage of waste engine oil with aged asphalt as a rejuvenating agent

Cited by 13 publications

References 42 publications

Effects of waste engine oil and crumb rubber rejuvenator on the performance of 100% RAP binder

Effects of waste engine oil and crumb rubber rejuvenator on the performance of 100% RAP binder

A Review on the Durability of Recycled Asphalt Mixtures Embraced with Rejuvenators

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

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