Evaluation of Interaction Ability between Asphalt and Mineral Powder through Adsorbed Asphalt Film Thickness Based on Micromechanics Approach
Publication: International Conference on Road and Airfield Pavement Technology 2023
ABSTRACT
The thickness of adsorbed asphalt film is used to evaluate the interaction ability between asphalt and mineral powder. The calculation methods of the thickness of adsorbed asphalt film are proposed based on the Hashin, Mori Tanaka, and generalized self-consistent model, respectively. The influences of the acidity and alkalinity of mineral powder, test temperature, and frequency on the interactions are analyzed. The results show that the thickness of adsorbed asphalt film calculated by the Hashin model can better evaluate the interaction between asphalt and mineral powder. The higher the content of acid SiO2 in mineral powder, the weaker the interaction ability between asphalt and mineral powder. The large amount of SiO2 contained in coal gangue mineral powder inhibits the interaction ability with asphalt.
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Information & Authors
Information
Published In
International Conference on Road and Airfield Pavement Technology 2023
Pages: 784 - 796
History
Published online: Feb 6, 2024
ASCE Technical Topics:
- [Inorganic compounds]
- Acids
- Alkalinity and acidity
- Chemical compounds
- Chemical properties
- Chemicals
- Chemistry
- Construction materials
- Engineering fundamentals
- Engineering materials (by type)
- Environmental engineering
- Geomechanics
- Geotechnical engineering
- Material mechanics
- Material properties
- Materials engineering
- Measurement (by type)
- Micromechanics
- Minerals
- Organic compounds
- Silica
- Soil mechanics
- Soil properties
- Temperature effects
- Temperature measurement
- Thickness
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