Asphalt Binder “Skincare”? Aging Evaluation of an Asphalt Binder Modified by Nano-TiO2

Lima, Orlando; Afonso, Cátia; Segundo, Iran Rocha; Landi, Salmon; Homem, Natália C.; Freitas, Elisabete F.; Alcantara, Amanda; Branco, Verônica Castelo; Soares, Sandra de Aguiar; Soares, Jorge Barbosa; Teixeira, V.; Carneiro, Joaquim A. O.

doi:10.3390/nano12101678

Cited by 10 publications

(2 citation statements)

References 55 publications

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“…The increasing brittleness induced by the UV irradiation can reduce the tensile strength and fatigue resistance of asphalt, which is prone to generate cracks under repeated loading or low-temperature conditions. In addition, the UV-aging also reduces the adhesion performance of the asphalt [33]. The adhesion properties of the raw and nanosheet-modified asphalt under UV irradiation were studied by the force curves in AFM analysis.…”

Section: Resultsmentioning

confidence: 99%

AFM characterization of morphological evolution and adhesion properties of ZnO/C nanosheet-modified asphalt under UV irradiation

Ding¹,

Zhang²,

Luo³

et al. 2023

Surf. Topogr.: Metrol. Prop.

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As an organic material, asphalt is vulnerable to ultraviolet (UV) irradiation. The effect of UV aging on physical properties has been intensively studied. In this study, large ZnO/C nanosheets were employed to shield asphalt from UV irradiation and delay the deterioration of its natural properties. The evolution of the morphology and adhesion properties of the ZnO/C nanosheet-modified asphalt material at the nanoscale was characterized by atomic force microscopy (AFM). The results show that the ZnO/C nanosheet-modified asphalt behaves differently from raw asphalt. The increase in the number of flaws can be suppressed by the addition of ZnO/C nanosheets, and the change in the adhesion properties caused by UV irradiation can also be hampered.

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Section: Resultsmentioning

confidence: 99%

AFM characterization of morphological evolution and adhesion properties of ZnO/C nanosheet-modified asphalt under UV irradiation

Ding¹,

Zhang²,

Luo³

et al. 2023

Surf. Topogr.: Metrol. Prop.

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“…One of the most effective methods is the modification of asphalt with various additive materials to improve the virgin asphalt cement's performance characteristics. These additives include polymers, fibers, and nanomaterial (NM), each contributing to enhancing the binder and asphalt concrete properties [7][8][9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Nano-Additives in Asphalt Binder: Bridging the Gap between Traditional Materials and Modern Requirements

Albayati,

Latief,

Al-Mosawe

et al. 2024

Applied Sciences

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This research delves into the realm of asphalt technology, exploring the potential of nano-additives to enhance traditional asphalt binder properties. Focusing on Nano-Titanium Dioxide (NT), Nano-Aluminum Oxide (NA), and Nano-Silica Oxide (NS), this study investigates the effects of incorporating these nanomaterials at varying dosages, ranging from 0% to 8%, on the asphalt binder’s performance. This study employs a series of experimental tests, including consistency, storage stability, rotational viscosity, mass loss due to aging, and rheological properties, to assess the impact of nano-additives on asphalt binder characteristics. The findings indicate a substantial improvement in the consistency of the asphalt binder with the addition of nanomaterials, particularly NS, which shows a 41% reduction in penetration at an 8% content and a notable increase in the softening point. The storage stability tests reveal that NS-modified asphalt exhibits superior stability compared to NT and NA, with a significantly lower ΔT increase. Furthermore, the investigation into rotational viscosity suggests that NS, despite increasing the binder’s viscosity, does not exceed the AASHTO M320 threshold, ensuring the binder’s workability. Aging tests demonstrate that NT, at lower concentrations, acts as an effective anti-aging agent, whereas NA and NS tend to increase the mass loss, impacting thermal stability. This study concludes that while each nanomaterial uniquely influences the asphalt binder’s properties, NS stands out in terms of enhancing the high-temperature performance and storage stability. Optimal dosages of 6% for NT and NA and 4% for NS are recommended based on the Overall Desirability analysis. This research bridges the gap between traditional asphalt materials and modern requirements, highlighting the transformative impact of nano-additives in advancing asphalt pavement technology.

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Functional and rheological investigations on hydrophilic nanoclay blended bitumen

Paktin,

Kumar,

Vinayaka Ram

et al. 2024

Discov Sustain

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Asphalt Binder “Skincare”? Aging Evaluation of an Asphalt Binder Modified by Nano-TiO2

Cited by 10 publications

References 55 publications

AFM characterization of morphological evolution and adhesion properties of ZnO/C nanosheet-modified asphalt under UV irradiation

AFM characterization of morphological evolution and adhesion properties of ZnO/C nanosheet-modified asphalt under UV irradiation

Nano-Additives in Asphalt Binder: Bridging the Gap between Traditional Materials and Modern Requirements

Functional and rheological investigations on hydrophilic nanoclay blended bitumen

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