Journal ArticleDOI
Modelling of rheological and chemical properties of asphalt binder considering SARA fraction
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TLDR
In this article, a column chromatography was applied to collect sufficient SARA (Saturates, Aromatics, Resins and Asphaltenes), and the Dynamic Shear Rheometer (DSR) test was used to develop the viscoelastic master curves for binders and their subsets.About:
This article is published in Fuel.The article was published on 2019-02-15. It has received 117 citations till now. The article focuses on the topics: Dynamic shear rheometer & Asphaltene.read more
Citations
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Determination of SARA fractions in asphalts by mid-infrared spectroscopy and multivariate calibration
TL;DR: In this article , a method of SARA determination using mid-infrared (MIR) spectra and Partial Least Square Regression (PLSR) modeling method was proposed.
Journal ArticleDOI
Kinetics of heavy oil non-catalytic aquathermolysis with and without stoichiometric coefficients
Alexis Tirado,Guillermo Félix,Michael A. Kwofie,Ameen A. Al-Muntaser,Mikhail A. Varfolomeev,Chengdong Yuan,Jorge Ancheyta +6 more
TL;DR: In this paper , the effect of using stoichiometric coefficients during the kinetic modeling of the aquathermolysis process has been studied and the parameters of two kinetic models based on SARA fractions and gas production were determined.
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Bonding, rheological, and physiochemical characteristics of reclaimed asphalt rejuvenated by crumb rubber modified binder
TL;DR: In this article , the authors used pull-off test, dynamic shear rheometer, and Fourier transformed infrared spectroscopy to investigate the bonding, rheological, and physiochemical characteristics of the asphalt binder.
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An improved method for separating styrene-butadiene-styrene triblock copolymer (SBS) and bitumen matrix from SBS modified bitumen
TL;DR: Wang et al. as discussed by the authors developed a reliable method for separating styrene-butadiene-styrene triblock copolymer (SBS) modifier and bitumen matrix, which can not only reveal the aging mechanism of SBS modified bitumen but also can be used to determine the SBS content in SBSMB.
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Styrene modified asphalt based on molecular dynamics
TL;DR: In this article , the phase structure of the SBS modified asphalt was analyzed by considering the polymer characteristic of SBS molecular with different block ratios and concentrations on the molecular scale, and a total of 18 molecular dynamics(MD) models were constructed by Gromacs.
References
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Journal ArticleDOI
The colloidal structure of bitumen: Consequences on the rheology and on the mechanisms of bitumen modification
TL;DR: A general picture of bitumen structure is shown to emerge and it shows that a simple solvation parameter allows quantifying the effect of the asphaltenes on the rheological properties ofbitumen.
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Effect of ageing on bitumen chemistry and rheology
Xiaohu Lu,Ulf Isacsson +1 more
TL;DR: In this article, the effect of ageing on bitumen chemistry and rheology was studied, where seven bitumens were aged according to the thin film oven test and the rolling thin-film oven test (RTFOT) and the binders were characterised using infrared spectroscopy, chromatography and dynamic mechanical analysis.
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Composition of asphalt based on generic fractionation, using solvent deasphaltening, elution-adsorption chromatography, and densimetric characterization
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New direct observations of asphalts and asphalt binders by scanning electron microscopy and atomic force microscopy
TL;DR: In this article, a network of asphaltene molecules with regard to asphalt gel was revealed by using atomic force microscopy (AFM) and SEM observations with very low resolution.