Effect of Fumed Silica Nanoparticles on Ultraviolet Aging Resistance of Bitumen

Cheraghian, Goshtasp; Wistuba, Michael P.

doi:10.3390/nano11020454

Cited by 38 publications

(14 citation statements)

References 52 publications

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“…Inter alia, rheological performance of binder and asphalt mixture were all improved with silica NPs, fatigue strength of binder was increased with titanium dioxide NPs, and mechanical and thermal stabilities of asphalt mixtures were improved by clay NPs 20 – 23 . Silica NPs possess important advantages such as being non-toxic, non-photocatalytic, and inorganic 24 – 26 . Silica families (based on SiO 2 arrangements) were reported to be one of the best inorganic NPs in improving binder aging properties 27 , 28 .…”

Section: Introductionmentioning

confidence: 99%

Rheological, physicochemical, and microstructural properties of asphalt binder modified by fumed silica nanoparticles

Cheraghian

Wistuba

Kiani

et al. 2021

Sci Rep

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Warm mix asphalt (WMA) is gaining increased attention in the asphalt paving industry as an eco-friendly and sustainable technology. WMA technologies are favorable in producing asphalt mixtures at temperatures 20–60 °C lower in comparison to conventional hot mix asphalt. This saves non-renewable fossil fuels, reduces energy consumption, and minimizes vapors and greenhouse gas emissions in the production, placement and conservation processes of asphalt mixtures. At the same time, this temperature reduction must not reduce the performance of asphalt pavements in-field. Low aging resistance, high moisture susceptibility, and low durability are generally seen as substantial drawbacks of WMA, which can lead to inferior pavement performance, and increased maintenance costs. This is partly due to the fact that low production temperature may increase the amount of water molecules trapped in the asphalt mixture. As a potential remedy, here we use fumed silica nanoparticles (FSN) have shown excellent potential in enhancing moisture and aging susceptibility of asphalt binders. In this study, asphalt binder modification by means of FSN was investigated, considering the effects of short-term and long-term aging on the rheological, thermal, and microstructural binder properties. This research paves the way for optimizing WMA by nanoparticles to present enhanced green asphalt technology.

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Section: Introductionmentioning

confidence: 99%

Rheological, physicochemical, and microstructural properties of asphalt binder modified by fumed silica nanoparticles

Cheraghian

Wistuba

Kiani

et al. 2021

Sci Rep

Self Cite

View full text Add to dashboard Cite

show abstract

“…Besides, it was observed that the aging resistance and mechanical stability of bitumen to ultraviolet radiation increased. When fumed silica nanoparticles were mixed into bitumen in different proportions (0.1, 0.2, and 0.3%) by weight, the oxidation degree and carbonyl index were found to have improved according to the results of ultraviolet aging [12].…”

Section: Introductionmentioning

confidence: 99%

Research on the Rheological Properties of Asphalt Binder Modified by Fume Silica and Crumb Rubber Compound

Akpolat

Kök

Aydoğmuş

2022

Period. Polytech. Civil Eng.

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This study investigates the effect of using Fume Silica (Aerosol 300) alone and together with crumb rubber (CR) in bitumen modification on the traditional and rheological properties of the binder and compares it to the SBS modified binder. Using the aerosol additive in the binder at the rates of 0.5%, 1%, 1.5%, and 2% were determined as the most convenient ratio and CR+aerosol modified binders were prepared per this ratio. The binders were subjected to the softening point, viscosity, frequency sweep, bending beam rheometer (BBR), and Fourier Transform Infrared spectroscopy (FTIR) tests in the context of the study. Besides, the optimum conditions were determined according to the response functions by designing an experiment with statistical regression according to the Response surface methodology (RSM). The results indicate that the optimum aerosol ratio is 1.5%. With the use of 1.5% aerosol in 6% CR modification per bitumen weight, it was found that (1) the softening point increases and the temperature sensitivity decrease in comparison to other binders, (2) the consistency of the binder increases, (3) the complex modulus values increase and become more resistant to rutting, (4) the low-temperature parameters enhance by performing more flexible behavior, (5) there may be physical changes in the structure even though there is no chemical reaction in the binder with the use of CR and aerosol additives, and (6) the experimental data and theoretical data obtained from the RSM method are consistent as per the statistical analysis.

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“…Asphalt pavement has good skid resistance, low noise and excellent friction resistance, which has been applied as the main structure of expressway pavement in China [ 1 , 2 , 3 ]. However, asphalt pavement is prone to high temperature rutting, low temperature cracking, water damage and spalling [ 4 , 5 , 6 , 7 , 8 , 9 , 10 ]. In some special natural environments, especially in coastal areas and northwest saline soil areas, corrosion medium such as sulfate–chloride would lead to the serious damage of asphalt pavement after several years of service, and the service life of the road is greatly reduced [ 11 , 12 , 13 , 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Study on Performance Damage and Mechanism Analysis of Asphalt under Action of Chloride Salt Erosion

et al. 2021

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This study aims to investigate the performance evolution and mechanism of asphalt under action of chloride salt erosion. Asphalt samples soaked with five different snow melting chloride salt concentrations were taken as the research object. Then, the high-temperature performance, low-temperature performance, temperature sensitivity and asphalt–aggregate adhesion property of asphalt samples were carried out. Additionally, Fourier transform infrared spectroscopy (FTIR) was used to explore the mechanism of chloride salt erosion on asphalt. Test results showed the linear variation relationships of high-temperature performance, low-temperature performance and temperature sensitivity with chloride salt concentrations. The high-temperature performance of asphalt would be improved by chloride snowmelt salt. With the increase in the chloride salt solution concentration, the low-temperature performance of asphalt became worse, and the temperature sensitivity increased. Moreover, after the effect of the chloride salt solution, the asphalt–aggregate adhesion property decreased with the increase in the chloride salt solution concentration. It is necessary to control the amount of chloride snowmelt salt in the actual snow removal projects. Finally, based on Fourier transform infrared spectroscopy, the mechanism of chloride salt erosion on asphalt was preliminarily explored. With the increase in the chloride salt solution concentration, the proportion of light components (saturated fraction, aromatic fraction) in asphalt decreased, and the proportion of heavy components (resin and asphaltene) with good thermal stability increased.

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Effect of Fumed Silica Nanoparticles on Ultraviolet Aging Resistance of Bitumen

Cited by 38 publications

References 52 publications

Rheological, physicochemical, and microstructural properties of asphalt binder modified by fumed silica nanoparticles

Rheological, physicochemical, and microstructural properties of asphalt binder modified by fumed silica nanoparticles

Research on the Rheological Properties of Asphalt Binder Modified by Fume Silica and Crumb Rubber Compound

Study on Performance Damage and Mechanism Analysis of Asphalt under Action of Chloride Salt Erosion

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