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Advances in Materials Science and Engineering
Volume 2017 (2017), Article ID 2473283, 11 pages
https://doi.org/10.1155/2017/2473283
Research Article

Properties of Direct Coal Liquefaction Residue Modified Asphalt Mixture

1School of Civil Engineering and Transportation, Beijing University of Civil Engineering and Architecture and Beijing Urban Transportation Infrastructure Engineering Technology Research Center, Beijing 100044, China
2Department of Civil and Environmental Engineering, Michigan Technological University and School of Traffic and Transportation, Changsha University of Science and Technology, 1400 Townsend Drive, Houghton, MI 49931, USA
3Beijing Urban Transportation Infrastructure Engineering Technology Research Center and Beijing Collaborative Innovation Center for Metropolitan Transportation, Beijing 100044, China
4School of Civil Engineering and Transportation, Beijing University of Civil Engineering and Architecture and Beijing Cooperative Innovation Research Center on Energy Saving and Emission Reduction, Beijing 100044, China
5Department of Civil and Environmental Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, USA

Correspondence should be addressed to Hui Yao; ude.utm@oayiuh

Received 30 November 2016; Accepted 2 February 2017; Published 21 February 2017

Academic Editor: Antonio Riveiro

Copyright © 2017 Jie Ji 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.

Abstract

The objectives of this paper are to use Direct Coal Liquefaction Residue (DLCR) to modify the asphalt binders and mixtures and to evaluate the performance of modified asphalt mixtures. The dynamic modulus and phase angle of DCLR and DCLR-composite modified asphalt mixture were analyzed, and the viscoelastic properties of these modified asphalt mixtures were compared to the base asphalt binder SK-90 and Styrene-Butadiene-Styrene (SBS) modified asphalt mixtures. The master curves of the asphalt mixtures were shown, and dynamic and viscoelastic behaviors of asphalt mixtures were described using the Christensen-Anderson-Marasteanu (CAM) model. The test results show that the dynamic moduli of DCLR and DCLR-composite asphalt mixtures are higher than those of the SK-90 and SBS modified asphalt mixtures. Based on the viscoelastic parameters of CAM models of the asphalt mixtures, the high- and low-temperature performance of DLCR and DCLR-composite modified asphalt mixtures are obviously better than the SK-90 and SBS modified asphalt mixtures. In addition, the DCLR and DCLR-composite modified asphalt mixtures are more insensitive to the frequency compared to SK-90 and SBS modified asphalt mixtures.