Application of gel permeation chromatography technology in asphalt materials: A review
TL;DR: In this article, the authors summarized the application of gel permeation chromatography (GPC) in characterizing asphalt materials and made several suggestions for the future application of GPC technology in asphalt material analysis.
About: This article is published in Construction and Building Materials.The article was published on 2021-04-05. It has received 43 citations till now. The article focuses on the topics: Asphalt.
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TL;DR: In this article , a review of multiscale evaluations of bitumen ageing behavior were reviewed to better understand the bitumen aging mechanism and contribute to future anti-ageing and binder rejuvenation work in this area.
17 citations
TL;DR: In this article , the authors focused on the oxidation and polymer degradation characteristics of the high-content styrene-butadiene-styrene modified asphalt, high-viscosity composite particle modified asphalt and high-elastic modified asphalt under the simulated aging environments of thermal oxidation and weather.
10 citations
TL;DR: In this paper , the microstructural evolution of asphalt binders due to chloride salt erosion through atomic force microscopy (AFM) was examined, and the morphology, roughness parameters, statistical functions, lateral correlation length (ξ), interface width (ω), and fractal dimension (Df) were used to study the asphalt surface after chloride treatment.
9 citations
TL;DR: In this article, four types of binders were selected for different time-course aging tests to simulate the aging of the actual pavement, and Dynamic Shear Rheometer (DSR), Fluorescence Microscopy (FM), Fourier Transform Infrared (FTIR) Spectroscopy, and Gel Permeation Chromatography (GPC) were conducted to track the rheological, chemical and morphological evolution of four bitumens during aging.
9 citations
TL;DR: In this article , the authors investigated the effect of salt erosion on bitumen under various salt erosion conditions (de-icing brine solution, sea fog, seawater, and saline-alkali solution).
8 citations
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23 Jul 1999TL;DR: Size exclusion chromatography separates macromolecules according to their hydrodynamic volume and has become the dominant method for the determination of molecular weight or mass distribution (MWD or MMD) of synthetic polymers.
Abstract: PROBLEM TO BE SOLVED: To perform molecular weight measurement and separation of a fluorine containing organic substance slightly soluble in a general organic solvent by means of size exclusion chromatography by using a solvent containing dichloro pentafluoropropane as a mobile phase and using polymethyl methacrylate with a known molecular weight as a molecular weight measurement standard specimen. SOLUTION: As a mobile phase. a solvent containing HCFC225 such as a solvent containing only HCFC225 and a mixture solvent containing HCFC225 and other solvents are available. HCFC225 is selected from one or more kinds of substances selected from chlorinated fluorinated hydrocarbons with a molecular formula represented by C3 HF3 Cl2 . As the HCFC225, several kinds of isomers with the same molecular formula and different structures are known, however, HCFC225ca (CF3 CF2 CHCl2 ), HCFC225cb (CF2 ClCF2 CFHC1), and a mixture of them are desirable. As a molecular weight measurement standard specimen, polymethyl methacrylate with a known molecular weight is used.
502 citations
TL;DR: The chemical, physical, and processing solutions suggested in the scientific and patent literature to improve storage stability are extensively discussed, with particular attention to an emerging class of asphalt binders in which the technologies of polymer-modified asphalts and polymer nanocomposites are combined.
394 citations
TL;DR: In this paper, the authors introduce different test methods to be used for the determination of the dynamic properties of polymers, and some of these have been applied in the last years for the evaluati...
Abstract: Current standards introduce different test methods to be used for the determination of the dynamic properties of polymers. Some of these have been applied in the last years for the evaluati...
216 citations
TL;DR: In this paper, staged extraction is performed on an asphalt mixture blend on the premise that individual layers of asphalt binder can be removed from the mixture until all that remains is the aggregate Each binder layer is then tested and compared quantitatively using Gel Permeation Chromatography (GPC) and Fourier Transform Infrared Spectroscopy (FTIR) to identify the extent to which RAP and virgin binder blend.
197 citations
TL;DR: In this paper, a reduction in pore water pressure is proposed to improve the stability of slopes. Deep draining trenches can be used for this purpose, and they can be found in many places in the world.
Abstract: Reduction in pore water pressure is a useful strategy to improve the stability of slopes. Deep draining trenches can be used for this purpose. For the realization of deep trenches, the usua...
190 citations