Understanding bitumen ageing by investigation of its polarity fractions

Mirwald, Johannes; Werkovits, Stefan; Camargo, Ingrid; Maschauer, Daniel; Hofko, Bernhard; Grothe, Hinrich

doi:10.1016/j.conbuildmat.2020.118809

Cited by 88 publications

(36 citation statements)

References 41 publications

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“…The peak at 1375 cm -1 may be associated with the asymmetric stretch of sulfonyl chlorides S=O bond. While the peaks at 1310 cm -1 and 1152 cm -1 are typical of respectively asymmetric and symmetric stretches of sulfones S=O bonds [18]. At 1030cm -1 , there is the other peak directly related to asphalt binder aging, the stretch of sulfoxide S=O bond [46][47][48].…”

Section: Peak Identificationmentioning

confidence: 98%

“…At 1030cm -1 , there is the other peak directly related to asphalt binder aging, the stretch of sulfoxide S=O bond [46][47][48]. The peak 1242 cm -1 can be linked to the asymmetric stretching vibration of sulfate esters [18].…”

Section: Peak Identificationmentioning

confidence: 99%

“…A common practice to separate asphalt binder fractions is to fractionate it based on polarity using different solvents. By this method, the following fractions are obtained: asphaltenes, resins, aromatics, saturates with decreasing polarity order [18]. To obtain light-colored asphalt pavements, transparent binders can be used.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Physicochemical and Rheological Properties of A Transparent Asphalt Binder Modified with Nano-TiO2

Segundo¹,

Landi²,

Margaritis³

et al. 2020

Preprint

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Transparent binder is used to substitute conventional black asphalt binder and to provide light-colored pavements, whereas nano-TiO2 has the potential to promote photocatalytic and self-cleaning properties. Together, these materials provide multifunction effects and benefits when the pavement is submitted to high solar irradiation. This paper analyses the physicochemical and rheological properties of a transparent binder modified with 0.5%, 3.0%, 6.0%, and 10.0% of nano-TiO2 and compares it to the transparent base binder, and conventional and polymer modified binders (PMB) without nano-TiO2. Their penetration, softening point, dynamic viscosity, master curve, black diagram, Linear Amplitude Sweep (LAS), Multiple Stress Creep Recovery (MSCR), and Fourier-Transform Infrared Spectroscopy (FTIR) were obtained. The transparent binders (base and modified) seem to be workable considering their viscosity and exhibited values between the conventional binder and PMB regarding rutting resistance, penetration, and softening point. They showed similar behavior as the PMB, demonstrating signs of polymer-modification. The addition of TiO2 seems to reduce fatigue life, except for the 0.5% content. Nevertheless, its addition in high contents increases the rutting resistance. The TiO2 modification seems to have little effect on the chemical functional indices. The best percentage of TiO2 was 0.5%, considering fatigue and 10.0% concerning permanent deformation.

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Section: Peak Identificationmentioning

confidence: 98%

Section: Peak Identificationmentioning

confidence: 99%

See 1 more Smart Citation

Physicochemical and Rheological Properties of A Transparent Asphalt Binder Modified with Nano-TiO2

Segundo¹,

Landi²,

Margaritis³

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…HMA deteriorations including aging, low temperature and fatigue cracking, rutting, and moisture-induced damages are mostly due to the mechanical and rheological properties of the binder and asphalt mixtures [5]. The global consumption of asphalt binder has rapidly increased since the 1900s, being used mostly as the binder for asphalt mixtures for road construction and maintenance [6]. Poor asphalt not only reduces the pavement service life but also causes further issues, for example increased repair, premature failure, increased maintenance costs [7], hazardous conditions for road users and finally, reduced safety.…”

Section: Introductionmentioning

confidence: 99%

A Review on Improving Asphalt Pavement Service Life Using Gilsonite-Modified Bitumen

et al. 2021

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Hot mix asphalt has various benefits such as good workability and durability. It is one of the most general materials used as asphalt mixtures in road pavements. Asphalt mixtures and binders can be improved by modifying them with various additives. Gilsonite is a natural asphalt hydrocarbon which may be used as an additive to hot mix asphalt. It is used as an asphalt binder modifier (wet process) and an asphalt mixture modifier (dry process) to improve the properties of the mix. It provides the option of improved rheological properties, stability, strength rutting resistance and moisture sensitivity. This paper examines the current research relating to the use of gilsonite to improve the asphalt properties (binder and mixture). The rheological properties of the modified asphalt binders and mechanical properties of the modified asphalt mixtures will be reviewed. The influence of adding gilsonite individually or combined with other additives will be discussed. Furthermore, assessment of the environmental and economic perspectives of the studied asphalt along with some suggestions to improve the asphalt binders and mixtures will be explored.

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“…A common practice for separating asphalt binder fractions is to fractionate it based on polarity using different solvents. By this method, the following fractions are obtained: asphaltenes, resins, aromatics, and saturates with decreasing polarity order [13]. To obtain light-colored asphalt pavements, transparent binders can be used.…”

Section: Introductionmentioning

confidence: 99%

Physicochemical and Rheological Properties of a Transparent Asphalt Binder Modified with Nano-TiO2

et al. 2020

View full text Add to dashboard Cite

Transparent binder is used to substitute conventional black asphalt binder and to provide light-colored pavements, whereas nano-TiO2 has the potential to promote photocatalytic and self-cleaning properties. Together, these materials provide multifunction effects and benefits when the pavement is submitted to high solar irradiation. This paper analyzes the physicochemical and rheological properties of a transparent binder modified with 0.5%, 3.0%, 6.0%, and 10.0% nano-TiO2 and compares it to the transparent base binder and conventional and polymer modified binders (PMB) without nano-TiO2. Their penetration, softening point, dynamic viscosity, master curve, black diagram, Linear Amplitude Sweep (LAS), Multiple Stress Creep Recovery (MSCR), and Fourier Transform Infrared Spectroscopy (FTIR) were obtained. The transparent binders (base and modified) seem to be workable considering their viscosity, and exhibited values between the conventional binder and PMB with respect to rutting resistance, penetration, and softening point. They showed similar behavior to the PMB, demonstrating signs of polymer modification. The addition of TiO2 seemed to reduce fatigue life, except for the 0.5% content. Nevertheless, its addition in high contents increased the rutting resistance. The TiO2 modification seems to have little effect on the chemical functional indices. The best percentage of TiO2 was 0.5%, with respect to fatigue, and 10.0% with respect to permanent deformation.

show abstract

Understanding bitumen ageing by investigation of its polarity fractions

Cited by 88 publications

References 41 publications

Physicochemical and Rheological Properties of A Transparent Asphalt Binder Modified with Nano-TiO2

Physicochemical and Rheological Properties of A Transparent Asphalt Binder Modified with Nano-TiO2

A Review on Improving Asphalt Pavement Service Life Using Gilsonite-Modified Bitumen

Physicochemical and Rheological Properties of a Transparent Asphalt Binder Modified with Nano-TiO2

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