Influence of SBS on the Aging Properties of High-Content Terminal Blend Rubber Modified Asphalt

Title

Influence of SBS on the Aging Properties of High-Content Terminal Blend Rubber Modified Asphalt

 Author

Wang, Sheng (Tongji University)
Huang, Weidong (Tongji University)
Liu, X. (TU Delft Pavement Engineering)
Lin, P. (TU Delft Pavement Engineering)

Date

2023

 Abstract

The goal of this study was to investigate the effect of styrene-butadiene-styrene (SBS) polymer on the aging properties of high-content terminal blend rubber modified asphalt (HCTBMA). All asphalt was tested for chemo-rheological properties using an attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR) test, temperature sweep test, frequency sweep tests, and multiple stress creep recovery (MSCR) test. According to ATR-FTIR observations, SBS can retard the oxidation effect of HCTBMA during short-term aging, but its inhibitory effect is reduced during long-term aging. Furthermore, aging aggravates the degree of desulfurization of crumb rubber in HCTBMA as the SBS content increases. Compared with HCTBMA, neat asphalt has a lower elasticity at high temperatures and a higher elasticity at low temperatures. The addition of SBS to HCTBMA improves the elasticity of the material. The elasticity of HCTBMA decreases and then increases after aging, and SBS can reduce the aging degree of HCTBMA after aging. Moreover, based on Pearson correlation analysis, the correlation between the desulfurization of rubber and the degradation of polybutadiene in HCTBMA during aging is high.


 Subject

Aging properties
Chemo-rheological properties
High-content terminal blend rubber modified asphalt (HCTBMA)
Oxidation effect
Pearson correlation

 To reference this document use:

http://resolver.tudelft.nl/uuid:dc2b3fef-e786-4cd4-823c-42d94521f8e7

 DOI

https://doi.org/10.1061/JMCEE7.MTENG-15506

 Embargo date

2023-12-01

 ISSN

0899-1561

 Source

Journal of Materials in Civil Engineering, 35 (8)

 Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

 Part of collection

Institutional Repository

 Document type

journal article

 Rights

© 2023 Sheng Wang, Weidong Huang, X. Liu, P. Lin
Files
PDF JMCEE7.MTENG_15506.pdf 1.83 MB
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