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Advanced Self-Healing Asphalt Reinforced by Graphene Structures: An Atomistic Insight
Published on: May 31, 2022
Optimizing Gradation Design for Ultra-Thin Wearing Course Asphalt.
Wentian Cui1, Kuanghuai Wu1, Xu Cai1
1School of Civil Engineering, Guangzhou University, Guangzhou 510006, China.
A new Ultra-thin Wearing Course-10 (UTWC-10) asphalt mixture offers superior rutting resistance and high-temperature stability. This advanced asphalt also demonstrates promising skid resistance and improved durability for road surfaces.
Area of Science:
- Materials Science
- Civil Engineering
- Pavement Engineering
Background:
- Ultra-thin wearing course asphalt mixtures are crucial for road surface reconstruction and functional layers.
- Improving rutting resistance and high-temperature stability is essential for pavement longevity.
- Existing asphalt mixtures require enhanced performance characteristics.
Purpose of the Study:
- To develop and evaluate an Ultra-thin Wearing Course-10 (UTWC-10) asphalt mixture.
- To enhance high-temperature stability and skid resistance of asphalt wearing courses.
- To compare the performance of UTWC-10 with traditional asphalt mixtures.
Main Methods:
- Utilized the Course Aggregate Void Filling (CAVF) method for mixture design.
- Conducted high-temperature rutting tests to assess dynamic stability (DS).
- Performed anti-sliding performance attenuation tests using a coarse aggregate polishing machine.
Main Results:
- UTWC-10 exhibited significantly higher rutting dynamic stability (DS) than traditional mixtures.
- The designed UTWC-10 demonstrated promising skid resistance.
- UTWC-10 showed superior low-temperature crack resistance and water stability.
Conclusions:
- The UTWC-10 asphalt mixture provides excellent high-temperature rutting resistance and skid resistance.
- UTWC-10 offers improved durability and performance compared to conventional asphalt wearing courses.
- This research validates UTWC-10 as a high-performance material for road construction.

