Long-Term Performance of Recycled Asphalt Pavement with Recycled Engine Oil Bottom Based on Accelerated Loading Test

The practical performance of recycled asphalt obtained from recycled engine oil bottom (REOB) was evaluated by paving a test road of base asphalt and REOB-recycled asphalt mixture in a laboratory, where accelerated loading tests with 700,000 cycles were conducted. During accelerated loading, pavemen...

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Bibliographic Details
Published in:Coatings (Basel) 2022-04, Vol.12 (4), p.522
Main Authors: Li, Jin, Zhu, Li, Yu, Miaozhang, Zuo, Shen, Cui, Xinzhuang, Liu, Peng
Format: Article
Language:English
Subjects:
Accelerated tests
Aggregates
Aging
Asphalt mixes
Asphalt pavements
Construction accidents & safety
Optimization
Pavement materials
Performance degradation
Performance tests
Roads & highways
Skid resistance
Test methods
Viscosity
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Summary:The practical performance of recycled asphalt obtained from recycled engine oil bottom (REOB) was evaluated by paving a test road of base asphalt and REOB-recycled asphalt mixture in a laboratory, where accelerated loading tests with 700,000 cycles were conducted. During accelerated loading, pavement temperature, layer bottom strain, pavement skid resistance, and rutting were monitored. The performance of pavement core material was tested after loading to analyze the index change of binder and the compaction degree of the mixture. The results show that the long-term anti-rutting ability of REOB-recycled asphalt pavement is approximately 10% higher than that of the base asphalt pavement, although the long-term anti-sliding force and anti-fatigue performance are poor. A developed model of rut with loading time can better predict the development trends of these parameters with loading cycles. The performance test of the pavement material after loading shows that 700,000 cycles can only degrade the performance of the test pavement, not damage it. The recycled asphalt pavement with 7% REOB has basically the same performance as the base asphalt under 700,000 cycles, indicating that REOB-recycled asphalt pavement can ensure basic road performance, while providing economic and environmental advantages. These results provide a reference for the application and form optimization of REOB-recycled asphalt pavement.
ISSN:2079-6412
2079-6412
DOI:10.3390/coatings12040522