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Journal of Chemistry
Volume 2017, Article ID 1531632, 9 pages
Research Article

Mechanical Property and Analysis of Asphalt Components Based on Molecular Dynamics Simulation

1School of Highway, Chang’an University, Xi’an 710064, China
2School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798
3School of Transportation Engineering, Southeast University, Nanjing 210096, China

Correspondence should be addressed to Jianzhong Pei; moc.621@gnohznaijiep

Received 31 July 2017; Accepted 28 September 2017; Published 26 October 2017

Academic Editor: Tomokazu Yoshimura

Copyright © 2017 Rui Li et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The asphalt-aggregate interface interaction plays a significant role in the overall performances of asphalt mixture. In order to analyze the chemical constitution of asphalt effects on the asphalt-aggregate interaction, the average structure C64H52S2 is selected to represent the asphalt, and the colloid, saturated phenol, and asphaltene are selected to represent the major constitutions in asphalt. The molecular models are established for the three compositions, respectively, and the Molecular Dynamics (MD) simulation was conducted for the three kinds of asphaltene-aggregate system at different presses. Comparing the value of Young modulus of these three polymers, the maximum modulus value of asphaltene was 2.80 GPa, the modulus value of colloid was secondary, and the minimum modulus of saturated phenol was 0.52 GPa. This result corresponds to conventional understanding.