Hot In-Place Recycled Asphalt Mixtures : RAP Analysis, Compaction Characteristics and Field Evaluation
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2024-02
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Language
en
Pages
19
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Sustainability (Switzerland), Volume 16, issue 3
Abstract
The substantial accumulation of reclaimed asphalt pavement (RAP) poses a pressing issue in road construction. The hot in-place recycling (HIR) technique has garnered widespread attention due to its high recycling rates of RAP and minimal environmental hazards. This study focuses on the RAP analysis, compaction characteristics, and field evaluation of hot in-place recycled asphalt pavements (HIRAP). Firstly, a novel test method of RAP analysis was proposed to evaluate the suitability of RAP. Subsequently, compaction tests reveal the compaction characteristics of hot in-place recycled asphalt mixture (HIRAM). Finally, the field performance of HIRAP was assessed. The research findings indicate that the RAP analysis method can accurately characterize the status of RAP. Increasing the RAP temperature improves the compaction characteristics of HIRAM. The field tests show that using HIR technology improves the performance of the pavement, in particular with a compaction of 99.7%. This study will establish a theoretical foundation for further promoting the HIR technique.Description
Funding Information: This research was funded by the Scientific Research Project of the Shaanxi Provincial Department of Transportation, grant number 21-53K and 21-36X, and the Guangxi Transportation Science and Technology Demonstration Project “Guilin-Zhongshan Highway Green Energy Self-consistent Supply and Efficient Utilization Key Technology Integration Application Research and Demonstration”, grant number 2023–0002. Publisher Copyright: © 2024 by the authors.
Keywords
compaction characteristics, field evaluation, hot in-place recycling, reclaimed asphalt pavement, volume of voids
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Citation
Wang, T, Zhao, X, Zheng, L, Mao, C, Wang, L, Falchetto, A C & Guo, D 2024, ' Hot In-Place Recycled Asphalt Mixtures : RAP Analysis, Compaction Characteristics and Field Evaluation ', Sustainability (Switzerland), vol. 16, no. 3, 1064 . https://doi.org/10.3390/su16031064