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Study on Composition and Structure of Liaoshu Asphalt
Authors:Yufeng Cong   Wei Huang  Kejian Liao  Guomin Liu  Yanhai Yang  Jun Liu
Affiliation: a Petroleum Engineering Faculty, Liaoning University of Petrochemical and Technology, Fushun, Liaoning, Chinab Department of Material Science and Engineering, Shengyang Architectural and Civil Engineering, Shengyang, Liaoning, China
Abstract:In this article, the structure characteristics of Liaoshu paving asphalts have been studied by the methods of element analysis, SARA and E-D-M. At same time, the relation between composition and structure and using performance of Liaoshu paving asphalt were established. The experimental results show that carbon and hydrogen contents were more than 95%, the hydrogen/carbon atom ratio was about 1.5 in the Liaoshu paving asphalts. The content of saturates is between 20 and 25% in the Liaoshu paving asphalt, aromatics 35-40%, resin 25-30%, and asphaltene 8-10%. There are 45 carbon atoms in asphalt average molecule, which contain 16-17 aromatic carbon atoms. The number of total ring in asphalt average molecule is 5-6, the aromatic ring is 3-4, the naphthene ring is 1-2.
Keywords:Paving asphalts  Element analysis  Group composition analysis  Structure group composition
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