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Title:

Investigation of Asphalt Chemical Structure using Liquid Chromatography Transform

Accession Number:

01663677

Record Type:

Component

Abstract:

The present study investigated functional group distribution of virgin and aged asphalt binder through liquid chromatography (LC) transform, a device that combines the functions of Fourier transform infrared spectroscopy (FTIR) and gel permeation chromatography (GPC). The corresponding molecular models of virgin and PAV aged asphalt components were constructed. The temperature-dependent density of the model was calculated to verify the accuracy of the model. The chemical structure of the components was evaluated using a series of indicators, including the aromatic index, the aging index, the C = O index and the d (CH3) / d (CH3 + CH2). The structural changes of components with molecular weight of the virgin and aged asphalt were also analyzed. The molecular simulation results indicated that the molecular model developed in this study was consistent with real asphalt.

Supplemental Notes:

This paper was sponsored by TRB committee AFK20 Standing Committee on Asphalt Binders. Investigation of Functional Group Distribution of Asphalt Using Liquid Chromatography Transform and Prediction of Molecular Model: This is an alternate title.

Report/Paper Numbers:

18-05979

Language:

English

Authors:

Ding, Yongjie
Huang, Baoshan
Shu, Xiang

Pagination:

5p

Publication Date:

2018

Conference:

Transportation Research Board 97th Annual Meeting

Location: Washington DC, United States
Date: 2018-1-7 to 2018-1-11
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References

Subject Areas:

Highways; Materials; Pavements

Source Data:

Transportation Research Board Annual Meeting 2018 Paper #18-05979

Files:

TRIS, TRB, ATRI

Created Date:

Jan 8 2018 11:32AM