Proceedings of the 2024 6th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2024)

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Effect of Thermal-Oxygen Aging of the Waste Tire Rubbers on the Interfacial Bond Strength of Porous Elastic Road Surface

Authors
Binfang Lan1, Jing Gu1, Sheng Cheng1, Yuchun Li2, *
1Taizhou Highway Development Center, Taizhou, Jiangsu, 225300, China
2Research Institute of Highway Ministry of Transport, Beijing, 100088, China
*Corresponding author. Email: yc.li@rioh.cn
Corresponding Author
Yuchun Li
Available Online 13 June 2025.
DOI
10.2991/978-94-6463-726-7_15How to use a DOI?
Keywords
porous elastic road surface; thermal-oxygen aging; waste tire rubbers
Abstract

Porous elastic mixture is a kind of functional pavement, which possess the noise reduction ability, energy saving and carbon reduction, waste resource utilization and other composite functions. In the mixture, the polyurethane as binder, aggregates mixed with 15%-25% waste rubber particles. Compared with new rubber, the broken molecular chain structure is more prone to further aging degradation and “sulfur return” in a short time after being subjected to different intensities of hot oxygen in the road service environment. The elasticity decreases rapidly, and the thermal oxygen aging rate is significantly faster than that of the adhesive of the mixture, which affects the interfacial bond strength of the mixture. In the aging process, polar groups are generated, surface free energy is increased, adhesion with polyurethane is increased, and interface drawing strength is increased. However, with the extension of aging time, the cemented structure formed by holes on the surface of waste rubber and polyurethane is more likely to be the stress concentration point after being subjected to force, so the drawing strength gradually decreases after 35 days of aging.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 2024 6th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2024)
Series
Atlantis Highlights in Engineering
Publication Date
13 June 2025
ISBN
978-94-6463-726-7
ISSN
2589-4943
DOI
10.2991/978-94-6463-726-7_15How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Binfang Lan
AU  - Jing Gu
AU  - Sheng Cheng
AU  - Yuchun Li
PY  - 2025
DA  - 2025/06/13
TI  - Effect of Thermal-Oxygen Aging of the Waste Tire Rubbers on the Interfacial Bond Strength of Porous Elastic Road Surface
BT  - Proceedings of the 2024 6th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2024)
PB  - Atlantis Press
SP  - 139
EP  - 144
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-726-7_15
DO  - 10.2991/978-94-6463-726-7_15
ID  - Lan2025
ER  -