Effect of Nanoclays on Moisture Susceptibility of SBS-Modified Asphalt Binder
Joint Authors
Guo, Yinchuan
Shen, Aiqin
Wang, Han
Yang, Xiaolong
Li, Peng
Source
Advances in Materials Science and Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-02-26
Country of Publication
Egypt
No. of Pages
15
Abstract EN
Moisture susceptibility plays an important role in the damage of asphalt pavement.
Failure occurs when asphalt is removed from the aggregate particles due to the decreased adhesion between the asphalt and aggregate in comparison with that between water and the aggregate.
In recent years, efforts utilizing nanomaterials to improve the diverse properties of asphalt have proven to be effective.
In this study, three types of nanoclays were used to modify styrene-butadiene-styrene- (SBS-) modified asphalt.
The resistances to water damage of the modified binders were evaluated using the surface free energy (SFE) and atomic force microscopy (AFM).
The results revealed that the total SFE decreased and the energy ratio (ER) increased when the asphalt binder was modified with the nanoclays, indicating that the addition of nanoclays can improve the moisture resistance of these aggregate-binder systems.
After immersion, a decreased amount of bee structures was observed in both the SBS and nanoclay-modified asphalts due to the interactions between water and bitumen.
However, the residual amount of bee structures was higher in the nanoclay-modified asphalts than in the SBS-modified asphalt, indicating that the addition of nanoclay makes the surface morphology of asphalt more resistant to water damage.
Finally, freeze-thaw splitting tests were used to verify the results obtained through the SFE and AFM tests.
American Psychological Association (APA)
Wang, Han& Guo, Yinchuan& Shen, Aiqin& Yang, Xiaolong& Li, Peng. 2020. Effect of Nanoclays on Moisture Susceptibility of SBS-Modified Asphalt Binder. Advances in Materials Science and Engineering،Vol. 2020, no. 2020, pp.1-15.
https://search.emarefa.net/detail/BIM-1127963
Modern Language Association (MLA)
Wang, Han…[et al.]. Effect of Nanoclays on Moisture Susceptibility of SBS-Modified Asphalt Binder. Advances in Materials Science and Engineering No. 2020 (2020), pp.1-15.
https://search.emarefa.net/detail/BIM-1127963
American Medical Association (AMA)
Wang, Han& Guo, Yinchuan& Shen, Aiqin& Yang, Xiaolong& Li, Peng. Effect of Nanoclays on Moisture Susceptibility of SBS-Modified Asphalt Binder. Advances in Materials Science and Engineering. 2020. Vol. 2020, no. 2020, pp.1-15.
https://search.emarefa.net/detail/BIM-1127963
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1127963