2024 PHD-1 ONGOING
Release time: 2024/07/25 Publisher： original Views：
Preventive maintenance material design and multiscale characterization of its working mechanism for porous asphalt (PA) pavement
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Ph.D Student: Yang Bin |
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Project Background:
Porous asphalt (PA) pavement has been widely used as a functional pavement to improve the skid resistance, water penetration, and noise reduction. However, the raveling problem is a main destress for PA at the early stage due to its high void content and faster ageing. The surface treatment (ST) emulsion, containing asphalt binder and aromatic-based rejuvenators, might be used a preventive maintenance material to effectively alleviate the raveling destress.
Aims & Goals:
To evaluate the recovery efficiency of mechanical and functional performances of the damaged PA in laboratory using the ST emulsion;
To evaluate the recovery efficiency of mechanical and functional performances of the damaged PA in laboratory using the ST emulsion;
To understand the penetration mechanism and diffusion mechanism of ST emulsions in damaged PA mixture;
To optimize the material design of ST emulsion and develop application guidelines on applying ST emulsion as a preventive maintenance method for PA road surfaces.
Outcomes:
CONFERENCE ORAL REPORT 1: 'Characterization of Diffusion of Surface Treatment Emulsion in Aged Asphalt Binder of Porous Asphalt Mixture through SEM/EDS Analysis' in the World Transportation Convention 2024 (WTC2024).
