Analysis of vacuum tower asphalt extender and effect on bitumen and asphalt properties

Wielinski, Jason; Kriech, Anthony J.; Huber, Gerald; Horton, A. M.; Osborn, Linda V.

doi:10.1080/14680629.2015.1030832

Cited by 21 publications

(16 citation statements)

References 2 publications

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“…The limestone mineral composition fulfils the standard values according to previous literatures [35,37]. Although the three specimens have similar compounds content distributions, an evident difference can be found in Table 2 that only sample C contains a small percentage of ZnO due to the distillation treatments and following transport operations [36]; on the other hand, this demonstrates that the applied mineral powder and gasoline were not related to ZnO.…”

Section: Chemical Compositions Of Absorbed Mineral Powdersupporting

confidence: 69%

“…Additionally, a case study from Wuhan University of Technology was implemented to assess the cost and environmental impacts. Consulting the data from the China Energy Statistical Yearbook 2013 [31] and published literature [32][33][34][35][36], the extraction processes of gasoline and mineral powder were considered, and their comprehensive benefits were calculated and compared.…”

Section: Methodsmentioning

confidence: 99%

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Mechanism and Investment Analysis of Recycling Gasoline Solvent with Mineral Powder for Asphalt Cleaning

Wang

Jiang

et al. 2020

Applied Sciences

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Gasoline is widely used as a powerful organic solvent to remove asphalt residuals in road engineering applications; however, it is also known as a non-renewable fuel resource. This research aims to employ mineral powder to mitigate the consumption of gasoline in asphalt binder cleaning process, and evaluate its mechanism, environmental and economic benefits. Based on X-Ray Diffraction (XRD) spectra, X-Ray Fluorescence (XRF) spectra and Atomic Absorption Spectroscopy (AAS) detection, the microstructure and composition of mineral powder was investigated after adsorbing asphalt components from gasoline solution. Fourier Transform Infrared spectra (FTIR) were used to calculate the adsorption efficiency. Moreover, the assessments of environmental and economic impacts of investigated approach were evaluated quantitatively. The results indicated that the interactions between mineral powder and asphalt binder have not changed the crystal phase, and the rough interface of mineral powder could adsorb approximately 4% asphalt binder from the gasoline solution according to the detection of Zn. The comparative analysis, regarding cost-effectiveness and environmental impacts, demonstrated that once 1 kg asphalt adsorbed by mineral powder, recycling gasoline with mineral powder, could reduce costs by 80% (CNY 57.10), energy use by 97% (352.88 MJ) and equivalent CO2 emission by 93% (23.95 kg).

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Section: Chemical Compositions Of Absorbed Mineral Powdersupporting

confidence: 69%

Section: Methodsmentioning

confidence: 99%

Mechanism and Investment Analysis of Recycling Gasoline Solvent with Mineral Powder for Asphalt Cleaning

Wang

Jiang

et al. 2020

Applied Sciences

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“…For a better understanding of this phenomenon, elemental analysis of studied materials was performed using wavelength dispersive X-ray fluorescence spectrometry (WD-XRF) and obtained results are presented in Table 4. Additionally, it should be pointed that these elements can be also present in bitumen [34].…”

Section: Wd-xrf Analysis Of Reclaimed Gtrmentioning

confidence: 99%

Studies on the Synergistic Effects of Bitumen Plasticization and Microwave Treatment on Short-Term Devulcanization of Ground Tire Rubber (GTR)

Zedler¹,

Klein²,

Mr³

et al. 2018

Preprint

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In this paper, ground tire rubber (GTR) was mechano-chemically modified with road bitumen 160/220 and subsequently treated using a microwave radiation. The combined impact of bitumen 160/220 content and microwave treatment on short-term devulcanization of GTR were studied by thermal camera, wavelength dispersive X-ray fluorescence spectrometry (WD-XRF), static headspace and gas chromatography-mass spectrometry (SHS-GC-MS), thermogravimetric analysis combined with Fourier transform infrared spectroscopy (TGA-FTIR), oscillating disc rheometer and static mechanical properties measurements. The obtained results showed that bitumen plasticizer prevent oxidation of GTR during microwave treatment and simultaneously improves processing and thermal stability of obtained reclaimed rubber. 

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“…Moreover, a large amount of oil may jeopardize the thermal cracking performance of binders [13]. Another study observed that blending standard bitumen with REOB at a rate of 9% did not compromise asphalt mixture stiffness and ageing [14]. On the other hand, a non-similar ageing susceptibility of fluxed and standard bitumens has been demonstrated, and the different binder responses were attributed to the composition of the various oils [9].…”

Section: Introductionmentioning

confidence: 99%

A Study of Rubber-REOB Extender to Produce Sustainable Modified Bitumens

et al. 2020

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Thanks to greater attention to the environment and the depletion of non-renewable resources, the sustainability and the circular economy have become crucial topics. The current trend of pavement engineering is to reduce the use of standard bitumen by replacing it with more sustainable materials such as industrial residues and by-products. In this regard, the present study aims to characterize innovative extended bitumen using recycled materials. Due to promising preliminary results as bitumen modifiers, the powdered rubber from end-of-life tires and the re-refined engine oil bottom (REOB) have been investigated as feasible components of bitumen extenders. Nevertheless, several variables strongly affect the performance of the resulting binder, which cannot be neglected. Hence, this research focuses on the rubber-REOB interaction in order to evaluate their optimum ratio, which may maximize the use and advantages of both recycled materials as suitable partial replacements for bitumen. Various rubber-REOB ratios were considered and investigated by means of low and high frequency nuclear magnetic resonance (NMR) spectrometers and scanning electron microscope (SEM).

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Analysis of vacuum tower asphalt extender and effect on bitumen and asphalt properties

Cited by 21 publications

References 2 publications

Mechanism and Investment Analysis of Recycling Gasoline Solvent with Mineral Powder for Asphalt Cleaning

Mechanism and Investment Analysis of Recycling Gasoline Solvent with Mineral Powder for Asphalt Cleaning

Studies on the Synergistic Effects of Bitumen Plasticization and Microwave Treatment on Short-Term Devulcanization of Ground Tire Rubber (GTR)

A Study of Rubber-REOB Extender to Produce Sustainable Modified Bitumens

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