Analysis on factors affecting the cooling effect of optical shielding in pavement coatings

Si, Wei; Yin, Yike; Hu, Yanjia; Kang, Xingxiang; Xu, Yinsheng; Shi, Anye; Zhang, Bowen; Liu, Jiayao

doi:10.1016/j.buildenv.2022.108766

Cited by 18 publications

(4 citation statements)

References 45 publications

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“…In this process, the asphalt undergoes chemical component migration, microstructure transformation, and performance change [8,9]; it is transformed from the original "soft" structure to a "rigid and brittle" structure after aging [10]. This triggers and aggravates damage to the asphalt pavement structure because of other processes, such as fatigue and cracking, and severely affects the usability of asphalt pavement [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Multiscale Evaluation of Asphalt Aging Behaviour: A Review

Zhen

Kang²,

Liu

et al. 2023

Sustainability

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The performance of asphalt pavement will deteriorate gradually due to oxidation, also named the ageing of asphalt binders. In this study, the research progress on the multiscale evaluation of asphalt aging behaviour in the past decade was reviewed to further analyse the evolution law of asphalt aging behaviour and determine the asphalt aging mechanism. Firstly, artificial aging methods were introduced, the factors affecting asphalt aging behaviour were analysed, and the changes of asphalt properties before and after aging were identified. Secondly, the methods and research progress in terms of the evaluation of asphalt aging degrees were summarised from the macro-, mesoscopic-, micro-, and nanoscales. Finally, considering extensively studied rheological properties as an example, the correlations among the rheological properties of asphalt in the aging process and the conventional physical properties, chemical composition, microscopic properties, nano-molecular dynamics, and other parameters were analysed. The results show that various scales are interrelated, and the multiscale evaluation of asphalt aging can provide a more comprehensive prediction of the extent of asphalt aging. The correlation between multiple scales enables a thorough analysis of the mechanism of asphalt aging and the evaluation of asphalt aging behaviour at multiple scales.

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Section: Introductionmentioning

confidence: 99%

Multiscale Evaluation of Asphalt Aging Behaviour: A Review

Zhen

Kang²,

Liu

et al. 2023

Sustainability

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“…In the construction industry, asphalt pavement is a common form of pavement used in road projects [ 13 , 14 , 15 , 16 ]. The performance of the asphalt mixture depends on the gradation of aggregate and the properties of the asphalt mastic, which is made of asphalt and mineral powder and functions as a bonding agent.…”

Section: Introductionmentioning

confidence: 99%

The Effect of GFRP Powder on the High and Low-Temperature Properties of Asphalt Mastic

et al. 2023

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Glass fiber reinforced polymer (GFRP) is the main composite material used in wind turbine blades. In recent years, zero-carbon energy sources such as wind power have been widely used to reduce carbon emissions, resulting in a large amount of waste GFRP, and causing serious environmental problems. To explore efficient ways to recycle waste GFRP, this study explores the impact of adding GFRP powder (nominal maximum particle size ≤ 0.075 mm) on the high and low temperature properties of asphalt mastic. Samples of GFRP asphalt mastics were prepared with filler-asphalt mass ratios of 0.01:1, 0.1:1, 0.8:1, and 1:1, as well as two control samples of limestone filler asphalt mastics with filler-asphalt mass ratios of 0.8:1 and 1:1. The study analyzed the effect of GFRP on the asphalt mastic’s performance using temperature sweep, MSCR, and BBR tests. Results showed that the presence of GFRP improved the high-temperature resistance and recovery of asphalt mastic but led to decreased low-temperature crack resistance. The results suggest that GFRP has the potential to be used as a filler in asphalt mastic, with a recommended filler-asphalt mass ratio range of less than 0.8:1 for optimal low-temperature performance. However, further research is necessary to determine the optimal content of GFRP in asphalt mastic and to study its impact on other road performance metrics.

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“…Asphalt aging will lead to a series of problems such as road cracking, rutting, and potholes [5,6]. Asphalt aging seriously affects the service performance of pavement [7][8][9][10]. Therefore, how to restore aged asphalt to its initial state has become an important topic for scholars.…”

Section: Introductionmentioning

confidence: 99%

A Study on the Microscopic Properties of the Oil–Stone Interfacial Phase of a Reclaimed Asphalt Mixture Based on Molecular Dynamics Simulation

Cao,

Wang,

et al. 2023

Coatings

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In recent years, there has been a growing body of research focused on aged asphalt and recycled asphalt. Nevertheless, despite diligent endeavors, the precise micro-interaction mechanism occurring at the interface of weathered asphalt, reclaimed asphalt, and aggregates still eludes our understanding. This study leveraged molecular dynamics simulation technology to scrutinize the inherent behavior of aged asphalt and recycled asphalt at the micro-scale, elucidating the intricate interaction mechanism occurring at the interface of recycled asphalt, aged asphalt, and aggregates. The diffusion and adhesion properties of three distinct asphalt–aggregate interfaces were meticulously compared and comprehensively analyzed using advanced molecular dynamics simulation techniques. The findings revealed a substantial decline in the performance of aged asphalt, while the diffusion and adhesion properties of recycled asphalt were observed to be largely restored, reaching a remarkable level of approximately 85% in comparison to aged asphalt. The high-temperature performance, low-temperature performance, and water stability characteristics of both aged the asphalt mixture and recycled asphalt mixture were thoroughly investigated through rigorous laboratory testing of the asphalt mixtures. Based on the experimental findings, it was observed that the overall performance of the aged asphalt mixture exhibited a reduction of approximately 40%. However, through the process of regeneration, the overall performance of the asphalt mixture could be restored to approximately 90% of its non-aged counterpart.

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Analysis on factors affecting the cooling effect of optical shielding in pavement coatings

Cited by 18 publications

References 45 publications

Multiscale Evaluation of Asphalt Aging Behaviour: A Review

Multiscale Evaluation of Asphalt Aging Behaviour: A Review

The Effect of GFRP Powder on the High and Low-Temperature Properties of Asphalt Mastic

A Study on the Microscopic Properties of the Oil–Stone Interfacial Phase of a Reclaimed Asphalt Mixture Based on Molecular Dynamics Simulation

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