Properties of Direct Coal Liquefaction Residue Modified Asphalt Mixture
Document Type
Article
Publication Date
1-1-2017
Abstract
© 2017 Jie Ji et al. 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.
Publication Title
Advances in Materials Science and Engineering
Recommended Citation
Ji, J.,
Yao, H.,
Wang, D.,
Suo, Z.,
Liu, L.,
&
You, Z.
(2017).
Properties of Direct Coal Liquefaction Residue Modified Asphalt Mixture.
Advances in Materials Science and Engineering,
2017.
http://doi.org/10.1155/2017/2473283
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/12698