Indexed by:
Abstract:
Asphalt mixture is a kind of granular pavement materials which is dominated by granular aggregates in volume and exhibits obvious time-temperature dependency. Recognizing and understanding of asphalt mixture from the perspective of granular matter is the basic foundation of approaching and clarifying its matter attributes and behavior characteristics. This paper attempts to clarify the granular matter nature of asphalt mixture materials based on the theories of amorphous material and their glass transition as well as granular materials and the jamming transition models. It introduced the concept and connotation of granular matter materials, elucidated the granular matter attributes of asphalt mixture, reviewed the advances in the research of granular pavement materials, concluded the four essential features of granular pavement materials (geometric feature, packing effect, interfacial feature, and rheological feature), and discussed the future research directions of granular pavement materials. The results show that the behavior characteristics of asphalt and its effect on the whole system of asphalt mixture can be identified from the perspective of amorphous materials. The research of amorphous materials should be carried out in both the multiple individual scales and a coupling of them. The future research concerns include revealing the evolution rule of the microstructure of asphalt mixture in the process of jamming transition from both time and space dimensions, and exploiting a deeper understanding of the rheological behavior of asphalt mixture. Clarifying the conditions of stable packing and methods of high-efficiency packing for asphalt mixture from the perspective of granular material and multi-scale methodology, and identifying the thixotropic mechanism of asphalt mixture jamming under different working conditions. Re-understanding the rheological process of asphalt mixture subject to the different temperature, packing density and stress mode conditions, and establishing the jamming phase diagram of asphalt mixture covering the actual pavement service conditions. © 2023 Xi'an Highway University. All rights reserved.
Keyword:
Reprint 's Address:
Email:
Source :
中国公路学报
ISSN: 1001-7372
CN: 61-1313/U
Year: 2023
Issue: 8
Volume: 36
Page: 121-136
Cited Count:
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 0
Affiliated Colleges: