Review of ultraviolet ageing mechanisms and anti-ageing methods for asphalt binders

Li, Yuanyuan; Feng, Jianying; Wu, Shaopeng; Chen, Anqi; Kuang, Dongliang; Bai, Tao; Gao, Yangming; Zhang, Jizhe; Li, Linglin; Wan, Liyao; Liu, Quantao; Chen, Zongwu; Gu, Dengjun

doi:10.1016/j.jreng.2022.04.002

Cited by 40 publications

(15 citation statements)

References 111 publications

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“…As a result, the polymerization of small and medium molecules increases the recombination fraction. The degradation of macromolecules and modifiers leads to the migration of the recombination to light components [ 56 , 57 ]. The change trend of M n and M w for PPA/SBR-MA after UV aging is consistent with that of SBRMA.…”

Section: Resultsmentioning

confidence: 99%

Evaluating the Effects of Polyphosphoric Acid (PPA) on the Anti-Ultraviolet Aging Properties of SBR-Modified Asphalt

Niu

Zhu

et al. 2023

Materials

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The ultraviolet (UV) aging of asphalt is an important factor affecting the long-term performance of asphalt pavement, especially in high altitude cold regions. The current studies have reported that styrene butadiene rubber-modified asphalt (SBRMA) has a good cracking resistance at low temperatures. In addition, polyphosphoric acid (PPA) is an effective modifier that can enhance the anti-UV aging properties of asphalt. However, the understanding of the improvement mechanism of PPA on the anti-aging of SBRMA remains unclear. Therefore, this study aimed to evaluate the effect of PPA on the UV aging resistance of SBRMA. The rheological properties of PEN90 asphalt(90#A), SBRMA, and PPA/SBR modified (PPA/SBR-MA) before and after UV aging were evaluated by dynamic shear rheometer (DSR) and bending beam rheometer (BBR) tests. The molecular weight and chemical structure of 90#A, SBRMA, and PPA/SBR-MA were determined by Fourier transform infrared spectroscopy (FTIR) and gel permeation chromatography (GPC), and the interaction and modification mechanism of the modifiers were analyzed. The rheological analysis shows that the high and low temperature performances of SBRMA are improved by adding PPA, and PPA also significantly reduces the sensitivity of SBRMA to UV aging. The microscopic test results show that PPA has a complex chemical reaction with SBRMA, which results in changes in its molecular structure. This condition enhances SBRMA with a more stable dispersion system, inhibits the degradation of the polymer macromolecules of the SBR modifier, and slows down the aging process of base asphalt. In general, PPA can significantly improve the anti-UV aging performance of SBRMA. The Pearson correlations between the aging indexes of the macro and micro properties are also significant. In summary, PPA/SBRMA material is more suitable for high altitude cold regions than SBRMA, which provides a reference for selecting and designing asphalt pavement materials in high altitude cold regions.

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Section: Resultsmentioning

confidence: 99%

Evaluating the Effects of Polyphosphoric Acid (PPA) on the Anti-Ultraviolet Aging Properties of SBR-Modified Asphalt

Niu

Zhu

et al. 2023

Materials

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“…It is well known that organic UV absorbers can strongly absorb UV light and convert it into harmless vibrational energy by breaking internal hydrogen bonds, thereby reducing the degradation of UV light upon material structures 22 . Common organic UV absorbers in the market mainly include UV‐531, UV‐326, UV‐327, Tinuvin 1130, and Tinuvin 770 22–24 . UV‐531, a commonly used benzophenone UV absorber, has attracted the attention of researchers earlier than other absorbers.…”

Section: Introductionmentioning

confidence: 99%

“…UV‐531, a commonly used benzophenone UV absorber, has attracted the attention of researchers earlier than other absorbers. The UV‐531 absorber offers several advantages, including its low cost, non‐toxicity, excellent compatibility with organic substances, and strong capacity for absorbing UV radiation 23,26 . Recent works reported that the UV‐531 absorber could improve the physical properties of both base asphalt and SBS‐modified asphalt, particularly their low‐temperature performance.…”

Section: Introductionmentioning

confidence: 99%

“…22 Common organic UV absorbers in the market mainly include UV-531, UV-326, UV-327, Tinuvin 1130, and Tinuvin 770. [22][23][24] UV-531, a commonly used benzophenone UV absorber, has attracted the attention of researchers earlier than other absorbers. The UV-531 absorber offers several advantages, including its low cost, non-toxicity, excellent compatibility with organic substances, and strong capacity for absorbing UV radiation.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of properties and aging resistance of epoxy asphalt composite modified by ultraviolet absorber

Wang

Min

Wong

et al. 2023

J of Applied Polymer Sci

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This research investigated the effect of ultraviolet absorber (UV‐531) on the properties of epoxy asphalt (EA) binders. EA binders were modified by adding UV‐531 absorber at contents of 0, 0.3, 0.6, 0.9, and 1.2 wt%, and composites were then subjected to ultraviolet (UV)‐based aging, including UV, oxygen, and heat treatment. Laboratory tests were conducted to assess UV absorption, viscosity, mechanical parameters, contact angle, microstructure, and chemical functional groups of absorber‐modified EA composites before and after aging. The results showed that the addition of UV‐531 resulted in enhanced UV absorption capacity, lower initial viscosity, and longer allowable application time for EA composites. The UV‐531 absorber has good compatibility with EA binders and does not weaken the performance of EA binders. From anti‐aging perspective, UV‐531 absorber effectively delayed the degradation of the physical, mechanical, and chemical structures of EA composites. The breakage of alkyl and ester groups of EA composites containing absorber was significantly reduced under aging conditions. Overall, the presence of UV‐531 retarded severe performance deterioration in EA composite. Considering aging improvement and economic cost, it is recommended to use a content of 0.9 wt% UV‐531 absorber as an anti‐aging agent for EA composites.

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“…Different asphalt modification technologies were developed to enhance the road performance and service life of asphalt pavement [ 1 ]. Nonetheless, under the combined actions of cold temperature [ 2 ], ultraviolet radiation exposure [ 3 ], water erosion [ 4 ], and repetitive vehicle loading [ 5 ], microcracks will inevitably occur on asphalt concrete during its service life. Without effective treatment for the pavement, the microcrack will fatally evolve into macrocracking, which will lead to the failure of the concrete structure and, thus, shorten the lifetime of the asphalt pavement.…”

Section: Introductionmentioning

confidence: 99%

Self-Healing Performance of Asphalt Concrete with Ca-Alginate Capsules under Low Service Temperature Conditions

Wang

Liu

et al. 2022

Polymers

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Calcium alginate capsules containing rejuvenators represent a promising method for asphalt concrete premaintenance, but their healing capacities under lower temperature conditions are still unknown. This paper investigated the healing performance of asphalt concrete containing calcium alginate capsules at low service temperatures. The Ca-alginate capsules were synthesized, and their morphology, compressive strength, thermal resistance, and relative oil content were evaluated. Besides, evaluations for the healing of asphalt concrete and the rejuvenator-release ratio of the capsules were determined via fracture-healing-refracture testing and Fourier-transform infrared spectrum experiments. Meanwhile, the glass transition temperature and rheological property of asphalt binder after compressive loading under different temperatures were explored via a differential scanning calorimeter and dynamic shear rheometer. The results showed that the capsules had good thermal resistance and mechanical strength. The capsules released less oil under −15, −10, and −5 ℃ than at 20 ℃, and the healing ratios of the asphalt concrete with the capsules at −15, −10, and −5 ℃ were obviously lower than that at 20 ℃. The released rejuvenator from the capsules could decrease the complex modulus and glass transition temperature of the asphalt binder. When compared with low service temperatures, the asphalt binder containing the capsules and serving at a high temperature has a better softening effect and low-temperature performance due to more oil being released.

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Review of ultraviolet ageing mechanisms and anti-ageing methods for asphalt binders

Cited by 40 publications

References 111 publications

Evaluating the Effects of Polyphosphoric Acid (PPA) on the Anti-Ultraviolet Aging Properties of SBR-Modified Asphalt

Evaluating the Effects of Polyphosphoric Acid (PPA) on the Anti-Ultraviolet Aging Properties of SBR-Modified Asphalt

Evaluation of properties and aging resistance of epoxy asphalt composite modified by ultraviolet absorber

Self-Healing Performance of Asphalt Concrete with Ca-Alginate Capsules under Low Service Temperature Conditions

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