2022 PHD-2 COMPLETED
Release time: 2024/07/25 Publisher： original Views：
Multi-scale study on interface adhesion and failure mechanism between asphalt and aggregate
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Principal Investigator: Zhang Jiupeng Ph.D Student: Sun Guoqing |
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Project Background:
Asphalt mixture was a multi-phase composite material, and the interface was an important factor affecting its bonding strength. Therefore, the interfacial adhesion between asphalt and aggregate has become one of the hot issues in this field in the world, and multi-scale study on interface adhesion and failure mechanism between asphalt and aggregate was a difficult point to be overcome.
Aims & Goals:
1. To clarify the physical-chemical adsorption configuration of asphalt on aggregate surface;
2. To reveal the cross-scale interaction mechanism of asphalt-aggregate interface;
3. To reveal the mechanism of interface degradation and failure under the coupling action of environment and load.
Outcomes:
PAPER 1: 'Impacts of asphalt and mineral types on interfacial behaviors: A Molecular dynamics study', Case Studies in Construction Materials, 2022, 17: e01581
DOI: https://doi.org/10.1016/j.cscm.2022.e01581
PAPER 2: 'Interfacial Performance of Asphalt-Aggregate System under Different Conditions Based on Molecular Dynamics Simulation', Journal of Materials in Civil Engineering, 2023, 35(6): 04023116.
DOI: https://doi.org/10.1061/JMCEE7.MTENG-15083
PAPER 3: 'Comprehensive evaluation of ballastless-track sealants based on macro–micro tests and principal component analysis', Construction and Building Materials, 2023, 400: 132708.
DOI: https://doi.org/10.1016/j.conbuildmat.2023.132708
CONFERENCE ORAL REPORT 1: Impacts of asphalt and mineral types on interfacial behaviors: A Molecular dynamics study' in World Transport Convention (WTC2023)
CONFERENCE ORAL REPORT 1: Impacts of asphalt and mineral types on interfacial behaviors: A Molecular dynamics study' in World Transport Convention (WTC2023)
