A Comprehensive Review of Hot In-Place Recycling Technology: Classification, Factors Affecting Performance of Asphalt Mixtures, and Benefits Analysis
Source abstract
Abstract
The application of hot in-place recycling asphalt mixtures (HIRAMs) is gaining increasing attention in highway maintenance due to its environmental and economic benefits. This paper comprehensively reviews and discusses the state-of-the-art studies in the field of hot in-place recycling (HIR). Firstly, different HIR technologies are introduced, including surface recycling, remixing, and repaving. Then, this paper provides a detailed description of the key factors influencing the road performance of HIRAMs in terms of both materials and production, such as reclaimed asphalt pavement (RAP), rejuvenators, virgin asphalt, virgin asphalt mixtures, preheating temperature, and mixing time. Furthermore, the environmental and economic benefits of HIR are compared with other preventative maintenance and recycling technologies. Finally, some challenges for the investigation of HIR are further discussed, and the corresponding suggestions are recommended for future investigation.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Asphalt Pavement Performance Evaluation · Infrastructure Maintenance and Monitoring · Transport Systems and Technology
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang’an University, South 2nd Ring Road Middle Section, Xi’an 710064, China
School of Highway, Chang’an University, South 2nd Ring Road Middle Section, Xi’an 710064, China
Key Laboratory of Road and Traffic Engineering, Tongji University, Shanghai 201804, China
STHG Technology Transformation Co., Ltd., Taiyuan 030000, China
Funding
National Natural Science Foundation of China · Key Research and Development Program of Shaanxi, China · Fundamental Research Funds for the Central Universities, CHD · Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University
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