Proceedings of the 2024 10th International Conference on Architectural, Civil and Hydraulic Engineering (ICACHE 2024)

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Performance Evaluation of Rubber Asphalt and Desulfurized Rubber Asphalt

Authors
Wei Duan1, *
1School of Civil Engineering, Chongqing University, Chongqing, 400045, China
*Corresponding author. Email: weiweid200@163.com
Corresponding Author
Wei Duan
Available Online 3 March 2025.
DOI
10.2991/978-94-6463-658-1_81How to use a DOI?
Keywords
crumb rubber; desulfurized rubber asphalt; modified asphalt; rheological properties
Abstract

The waste crumb rubber (CR) has been utilized to improve asphalt performance but it shows poor compatibility with matrix asphalt. The approaches of desulfurization and degradation of rubber are proposed to solve the above difficulties. The modified asphalts were prepared with using crumb rubber and desulfurized rubber as modifiers, and matrix asphalt was taken as control group to evaluate the physical properties, high-temperature rutting resistance and low-temperature crack resistance of three asphalts. The results show that both CR and DCR contribute to the positive modification to matrix asphalt, CR modified asphalt exhibits excellent high-temperature rutting resistance and low-temperature cracking resistance. The desulfurization of crumb rubber improves compatibility in asphalt due to the declined molecular weight, thereby enhancing the low-temperature performance of asphalt.

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 10th International Conference on Architectural, Civil and Hydraulic Engineering (ICACHE 2024)
Series
Advances in Engineering Research
Publication Date
3 March 2025
ISBN
978-94-6463-658-1
ISSN
2352-5401
DOI
10.2991/978-94-6463-658-1_81How 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  - Wei Duan
PY  - 2025
DA  - 2025/03/03
TI  - Performance Evaluation of Rubber Asphalt and Desulfurized Rubber Asphalt
BT  - Proceedings of the 2024 10th International Conference on Architectural, Civil and Hydraulic Engineering (ICACHE 2024)
PB  - Atlantis Press
SP  - 782
EP  - 787
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-658-1_81
DO  - 10.2991/978-94-6463-658-1_81
ID  - Duan2025
ER  -