Prediction of Rheological Properties of Asphalt Binder and Asphalt Mastic Containing Crumb Rubber Using Generalized Self-Consistent Micromechanical Model (GSCS)

Document Type : Original Article

Authors

1 M.Sc., Grad., Department of Civil & Environmental Engineering, Amirkabir University of Technology, Tehran, Iran.

2 Assistant Professor, Department of Civil & Environmental Engineering, Amirkabir University of Technology, Tehran, Iran.

3 Director of Department of Research & Development, Pasargad Oil Company, Tehran, Iran.

4 Supervisor of Department of Research & Development, Pasargad Oil Company, Tehran, Iran.

Abstract

Since the 1990s, micromechanical models have been used to predict mastic asphalt properties. However, a significant number of these models are deemed unsatisfactory in predicting the proper-ties of asphalt mastics due to their failure to account for the physical and chemical interactions between the bitumen and filler, as well as the interactions between filler particles. In this article, the generalized self-consistent scheme (GSCS) micro-mechanical model is investigated for its efficacy in predicting the complex shear modulus of modified bitumen with crumb rubber and asphalt mastics. The micro-mechanical model is founded on the mechanical properties of the constituent materials and their particle interactions. One base bitumen and two modified bitumens with crumb rubber at weight percentages of 10% and 15% were selected to produce asphalt mastics with two different filler volume ratios of 18% and 35%. The accuracy of the predictions was evaluated by comparing the relative difference between the experimental and predicted complex shear modulus curves using the GSCS model. The results demonstrate that the generalized self-consistent scheme model has satisfactory predictions for low filler volume ratios, but its accuracy is significantly influenced by frequency. Furthermore, as the filler percentage increases, the model error increases, and its reliability is compromised. Therefore, it is imperative to consider the chemical interaction between bitumen and filler, particularly modified bitumens and fillers, in developing models to address this inefficiency and problem.

Keywords

Main Subjects

References

-Bartolozzi, I., Antunes, I., & Rizzi, F. (2012). The environmental impact assessment of Asphalt Rubber: Life Cycle Assessment. 5th Asphalt Rubber Roads of the Future International Conference.
-Bressi, S., Santos, J., Orešković, M., & Losa, M. (2021). A comparative environmental impact analysis of asphalt mixtures containing crumb rubber and reclaimed asphalt pavement using life cycle assessment. International Journal of Pavement Engineering, 22(4). doi.org/10.1080/10298436.2019.1623404
-Buttlar, William G, Bozkurt, Diyar,Al-Khateeb, Ghazi G, Waldhoff, & Angela S. (n.d.). Understanding Asphalt Mastic Behavior Through Micromechanics.
-Faheem, A. F., & Bahia, H. U. (2010). Modelling of asphalt mastic in terms of filler-bitumen interaction. Road Materials and Pavement Design, 11, 281–303.          doi.org/10.1080/14680629.2010.9690335
-Farina, A., Zanetti, M. C., Santagata, E., & Blengini, G. A. (2017). Life cycle assessment applied to bituminous mixtures containing recycled materials: Crumb rubber and reclaimed asphalt pavement. Resources, Conservation and Recycling, 117.
doi.org/10.1016/j.resconrec.2016.10.015
-Li, J., Ni, F., & Lu, Q. (2018). Experimental Investigation into the Multiscale Performance of Asphalt Mixtures with High Contents of Reclaimed Asphalt Pavement. Journal of Materials in Civil Engineering, 30(6). doi.org/10.1061/(asce)mt.1943-5533.0002269
-Lo Presti, D. (2013). Recycled Tyre Rubber Modified Bitumens for road asphalt mixtures: A literature review. Construction and Building Materials, 49, 863–881.doi.org/10.1016/J.conbuildmat.2013.09.007
-Ma, X., Chen, H., Yang, P., Xing, M., Niu, D., & Wu, S. (2019). Assessment of existing micro-mechanical models for asphalt mastic considering inter-particle and physico-chemical interaction. Construction and Building Materials, 225, 649–660.  doi.org/10.1016/j.conbuildmat.2019.07.227
-Palit, S. K., Reddy, K. S., & Pandey, B. B. (2004). Laboratory Evaluation of Crumb Rubber Modified Asphalt Mixes. Journal of Materials in Civil Engineering, 16(1). doi.org/10.106108991561(2004)16:1(45)
-Pichler, C., Lackner, R., & Aigner, E. (2012). Generalized self-consistent scheme for upscaling of viscoelastic properties of
highly-filled matrix-inclusion composites - Application in the context of multiscale modeling of bituminous mixtures. Composites Part B: Engineering, 43(2). doi.org/10.1016/j.compositesb.2011.05.034
-Saberi.K, F., Fakhri, M., & Azami, A. (2017). Evaluation of warm mix asphalt mixtures containing reclaimed asphalt pavement and crumb rubber. Journal of Cleaner Production, 165.doi.org/10.1016/j.jclepro.2017.07.079
-Tahami, S. A., Mirhosseini, A. F., Dessouky, S., Mork, H., & Kavussi, A. (2019). The use of high content of fine crumb rubber in asphalt mixes using dry process. Construction and Building Materials, 222.
doi.org/10.1016/j.conbuildmat.2019.06.180
-Underwood, B. S., & Kim, Y. R. (2014). Structuralization as characteristic to link the mechanical behaviours of asphalt concrete at different length scales. Asphalt Pavements - Proceedings of the International Conference on Asphalt Pavements, ISAP 2014, 1.doi.org/10.1201/b17219-117
-Wang, T., Xiao, F., Amirkhanian, S., Huang, W., & Zheng, M. (2017). A review on low temperature performances of rubberized asphalt materials. In Construction and Building Materials, Vol. 145.
doi.org/10.1016/j.conbuildmat.2017.04.031
-Wang, T., Xiao, F., Zhu, X., Huang, B., Wang, J., & Amirkhanian, S. (2018). Energy consumption and environmental impact of rubberized asphalt pavement. In Journal of Cleaner Production, Vol. 180.
doi.org/10.1016/j.jclepro.2018.01.086
Journal of Transportation Research
Volume 21, Issue 1 - Serial Number 78
February 2024
Pages 329-338

Files

Share

How to cite

Statistics