Developing and Testing of the Principle Prototype for Efficient Micro-Damage Fine Stripping of Asphalt on the Surface of Reclaimed Asphalt Pavement

In the current recycling process of reclaimed asphalt pavement (RAP), due to the serious damage of aggregate gradation and the large amount of aged asphalt still wrapped around the surface of the treated aggregate, the low recycling rate and poor performance of the recycled asphalt mixture are the m...

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Bibliographic Details
Published in:Machines (Basel) 2023-03, Vol.11 (3), p.367
Main Authors: Zhou, Long, Wang, Shanshan, Zhang, Jizhe, Zou, Bin, Wang, Meng, Zhang, Wenwu, Lv, Xin, Meng, De’an, Hu, Xueliang, Yao, Zhanyong, Li, Lei
Format: Article
Language:English
Subjects:
aged asphalt stripping
Aggregate gradation
Aggregates
Analysis
Asphalt mixes
Asphalt pavements
CAE
Computer aided engineering
Concert reviews
Concerts
Concrete
Damage
Discrete element method
EDEM
Efficiency
Granular materials
Heat
Mechanical properties
Principles
prototype
Prototypes
Quality control
R&D
RAP
Recycling
Recycling industry
Research & development
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Summary:In the current recycling process of reclaimed asphalt pavement (RAP), due to the serious damage of aggregate gradation and the large amount of aged asphalt still wrapped around the surface of the treated aggregate, the low recycling rate and poor performance of the recycled asphalt mixture are the major problems of RAP. In view of the shortcomings of RAP recycling technology, it is urgent to research new treatment methods and design specialized asphalt-stripping equipment to solve the existing problems. In this paper, based on theoretical analysis and EDEM discrete element simulation, a principle prototype for efficient micro-damage fine stripping of asphalt on the RAP surface is developed and tested. The results demonstrate that the principle prototype has a satisfactory asphalt-stripping effect and achieves fine stripping of aged asphalt on the surface of aggregate without large-scale crushing. This principle prototype has significant engineering application values, which provides design solutions and data support for further equipment development.
ISSN:2075-1702
2075-1702
DOI:10.3390/machines11030367