| Issue |
E3S Web Conf.
Volume 375, 2023
8th International Conference on Energy Science and Applied Technology (ESAT 2023)
|
|
|---|---|---|
| Article Number | 01051 | |
| Number of page(s) | 5 | |
| Section | Fossil Energy & Geological Engineering | |
| DOI | https://doi.org/10.1051/e3sconf/202337501051 | |
| Published online | 27 March 2023 | |
Hot-in-place recycling engineering application of low penetration aged asphalt
1
School of Civil and Architectural Engineering, Nanchang Institute of Technology,
Nanchang, China
2
Ganzhou Kangda Highway Co., Ltd,
Ganzhou, China
3
Jiangxi Ruixun Highway Co., Ltd,
Ganzhou, China
4
Jiangxi Transportation Institute Co., Ltd,
Nanchang, China
* Corresponding author: 36517774@qq.com
Hot-in-place recycling of asphalt pavement is one of the important regeneration technologies of pavement engineering, which apply to the pavements with fewer diseases, excellent driving quality, slight rutting, and good pavement structural strength. However, the surface layer of some road sections was aging, the penetration index of aged asphalt at 25°C is lower than 20(0.1mm), which does not meet the recommended requirements of the criterion in China. In 2019, 3 sections of test projects were laid on the expressway, each section was 1 km, for confirming the feasibility of using hot-in-place recycling with asphalt penetration less than 20 (0.1mm) through physical engineering. Experimental results confirmed that Marshall stability, residual stability, dynamic stability and water seepage of the hot-in-place recycled mixture optimized by the recycled pavement material with a penetration of aged asphalt of 15 can meet the specification requirements, Pavement Condition Index (PCI), International Roughness Index (IRI), and Rut Depth (RD) of the test pavements are in good conditions.
Key words: Asphalt pavement / hot-in-place recycling / the penetration index / pavement condition index / International Roughness Index / Rut Depth
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.