Evaluation of bitumen fractional composition depending on the crude oil type and production technology

Paliukaitė, Miglė; Vaitkus, Audrius; Zofka, Adam

doi:10.3846/enviro.2014.162

Cited by 40 publications

(29 citation statements)

References 19 publications

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“…According to the European specification (EN 12597), bitumen is defined as a virtually involatile, adhesive, and waterproofing material derived from crude oil, or present in natural asphalt, which is completely or nearly completely soluble in toluene, and very viscous or nearly solid at ambient temperatures [1]. It is well-accepted that the original characteristics of bitumen are highly dependent on its production and processing procedure, as well as bitumen crude oil characteristics [2]. Good crude oils and proper distillation processes can enhance bitumen properties.…”

Section: Bitumen Functionalitymentioning

confidence: 99%

“…As the results have shown a considerable increase in the bitumen/polymer compatibility, it has been suggested that using ternary bitumen/polymer/clay (BPC) systems, the PmB's performances may be improved. In particular it has been claimed that the use of PLS in PmBs has mainly two effects: (1) improving the aging resistance of PmB with barrier properties of the dispersed clay platelets and (2) enhancing the storage stability of PmB by decreasing the density difference between polymer modifiers and bitumen [68].…”

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confidence: 99%

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Bitumen and Bitumen Modification: A Review on Latest Advances

et al. 2019

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This synthesis explores the state-of-the-knowledge and state-of-the-practice regarding the latest updates on polymer-modified bitumens (PmBs). The information in this study was gathered from a thorough review of the latest papers in the literatures related to modified bituminous materials, technologies, and advances. For this purpose, the paper is presented in two principle sections. In the first part, the bitumen itself is investigated in terms of chemical structure and microstructural systems. In the second part, the paper focuses on bitumen modification from different aspects for assessing the effectiveness of the introduced additives and polymers for enhancing the engineering properties of bitumen in both paving and industrial applications. In conclusion, the knowledge obtained in this study has revealed the importance of the chemical composition of base bitumen for its modification. It can be declared that while some polymers/additives can improve one or some aspects of neat bitumen properties, they can lead to compatibility problems in storage and production. In this respect, several studies showed the effectiveness of waxes for improving the compatibility of polymers with bitumen in addition to some benefits regarding warm mix asphalt (WMA) production.

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Section: Bitumen Functionalitymentioning

confidence: 99%

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confidence: 99%

Bitumen and Bitumen Modification: A Review on Latest Advances

et al. 2019

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“…Moreover, comparing the SARA fraction results from TLC-FID performed in different laboratories is challenging due to the use of the differing solvents and times of elution (often not reported in literature) (Masson et al 2001;Higuerey et al 2002;Tabatabaee and Kurth 2017;Paliukaite et al 2014). The laboratories choose the method for the inside quality control of the product, or for the compari-son between the products in development stage, based on inside correlations (Lehto 1988;Teugels and Zwijsen 1991).…”

Section: Introductionmentioning

confidence: 99%

Qualitative Detection of the Presence of Gilsonite in the Bituminous Blends Based on Thin Layer Chromatography

Makowska

Pellinen

2018

RILEM Bookseries

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The natural asphalts, of which Gilsonite is a representative, are modifiers used to increase the stiffness modulus of the asphalt concrete. For quality control purpose, recognizing if such material is present in the final blend is of an interest. The thin layer chromatography using a flame photometric detector (FPD), in addition to the typical flame ionization detector, was demonstrated hereby as a viable analytical tool for this problem. Gilsonite also contains the material soluble in solvent used in the development of the fraction referred to as aromatics. However, for straight run bitumen and Gilsonite the color of that fraction is different as well as their mobility. Due to the lower mobility of Gilsonite molecules on the stationary phase, the elution stops at different position than for fresh bitumen, convoluting the signal in the chromatogram region typically assigned for resins. The presence of Gilsonite is identifiable visually after the second development bath, but also with FPD from the final chromatogram.

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“…The colloidal stability decreases with the increase in the colloidal index and becomes unstable if the index value is from 0.5 to 2.7 ( 26 ).…”

Section: Materials and Test Methodsmentioning

confidence: 99%

Rheological and Molecular Characterizations of Tire Rubber Modified Asphalt Emulsion

Sarkar

Rahman

Elseifi

et al. 2020

Transportation Research Record: Journal of the Transportation R

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The aim of this study was to characterize the chemical, molecular, and rheological properties of different asphalt emulsions including a newly introduced tire-rubber modified asphalt emulsion (CRS-2TR). Three emulsions (CRS-2TR, CRS-2P, and CRS-2) and one asphalt rubber binder (AC20-5TR) were evaluated in this study. The superpave performance grade (PG), surface performance grade (SPG), and the multiple stress creep recovery (MSCR) test were conducted to evaluate the rheological properties of the binder residues. Evaluation of the differences in the functional groups, molecular weight distribution, and chemical composition of the asphalt binder residues was conducted using Fourier transform infrared spectroscopy (FTIR), high-pressure gel permeation chromatography (HP-GPC), and saturates, aromatics, resins and asphaltenes (SARA) fractionation, respectively. The chemical and molecular characterization test results indicated that the tire-rubber modified emulsion had lower carbonyl indices and colloidal instability indices as compared to the other conventional emulsions, indicating a higher resistance to aging. On the other hand, the rheological test results showed that the performance of CRS-2TR was comparable to CRS-2P and was expected to perform better than CRS-2. In addition, the moisture susceptibility of the binder residues from the bitumen bond strength (BBS) test showed that CRS-2TR had a greater pull-off tensile strength in both dry and wet conditions as compared to CRS-2 and had statistically equal performance results as compared to CRS-2P.

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Evaluation of bitumen fractional composition depending on the crude oil type and production technology

Cited by 40 publications

References 19 publications

Bitumen and Bitumen Modification: A Review on Latest Advances

Bitumen and Bitumen Modification: A Review on Latest Advances

Qualitative Detection of the Presence of Gilsonite in the Bituminous Blends Based on Thin Layer Chromatography

Rheological and Molecular Characterizations of Tire Rubber Modified Asphalt Emulsion

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