The gray relation entropy research between the stability of emulsified asphalt and chemical components of asphalt

DOI

10.2991/ifeesm-17.2018.320How to use a DOI?

Keywords

gray correlation entropy; bitumen; emulsified asphalt; chemical components; stability

Abstract

The basic properties, composition, and structure of four base bitumens: A1, A2, A3, and A4 were analysed. The stability of emulsified asphalt was investigated by means of residue content difference tests. The relationships between the stability of emulsified asphalt and the chemical compositions of the chosen bitumen blends were studied by means of gray correlation entropy method using the MATLAB® platform. Furthermore, the relationship between the stability of emulsified asphalt and the chemical composition of the bitumen were also discussed. It was shown that: The contents of resin and asphaltene are important factors in the composition of four-polar fractions in asphalt which affect stability of emulsified asphalt. The higher the resin and asphaltene contents, the better the stability of emulsified asphalt. In the elemental composition of asphalt the heteroatom content is an important factor influencing the stability of emulsified asphalt. Generally higher heteroatom content gives better stability, however, the basic properties and average structural unit parameters of asphalt cannot be used to characterize the stability of emulsified asphalt since they show no obvious correlation.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Pinhui Zhao
AU  - Dongxing Gao
AU  - Zeyu Zhang
AU  - Kechao Han
AU  - Fei Bi
AU  - Ziqiao Yang
PY  - 2018/02
DA  - 2018/02
TI  - The gray relation entropy research between the stability of emulsified asphalt and chemical components of asphalt
BT  - Proceedings of the 2017 3rd International Forum on Energy, Environment Science and Materials (IFEESM 2017)
PB  - Atlantis Press
SP  - 1762
EP  - 1771
SN  - 2352-5401
UR  - https://doi.org/10.2991/ifeesm-17.2018.320
DO  - 10.2991/ifeesm-17.2018.320
ID  - Zhao2018/02
ER  -