Next Article in Journal
Thermal Conductivity of Nanoporous Materials: Where Is the Limit?
Next Article in Special Issue
The Elastic Modulus and Damage Stress–Strain Model of Polypropylene Fiber and Nano Clay Modified Lime Treated Soil under Axial Load
Previous Article in Journal
Hypothermic Storage of 3D Cultured Multipotent Mesenchymal Stromal Cells for Regenerative Medicine Applications
Previous Article in Special Issue
Study on Compressive Properties and Dynamic Characteristics of Polypropylene-Fiber-and-Cement-Modified Iron-Ore Tailing under Traffic Load
Article

Investigation of the High-Temperature and Rheological Properties for Asphalt Sealant Modified by SBS and Rubber Crumb

College of Transportation, Jilin University, Changchun 130025, China
*
Author to whom correspondence should be addressed.
Academic Editor: Pablo Marcelo Stefani
Polymers 2022, 14(13), 2558; https://doi.org/10.3390/polym14132558
Received: 25 May 2022 / Revised: 16 June 2022 / Accepted: 17 June 2022 / Published: 23 June 2022
Crack sealing is an important measure for pavement maintenance. Hot-poured crack sealant is the most utilized material for crack sealing. However, its poor high-temperature and rheological properties seriously weaken the mechanical properties of repaired pavement. Thus, to overcome the disadvantage of the poor high-temperature and rheological properties of sealant, styrene–butadiene–styrene (SBS) and rubber crumb (CR) were utilized for modifying the asphalt-based sealants. Softening point tests, temperature tests, frequency scan tests, and multiple stress creep recovery tests (MSCR) were conducted to evaluate the high-temperature and rheological properties of the modified sealant. Additionally, the influence of SBS and CR on the high-temperature performance of the modified sealant was quantitatively analyzed by the grey relational analysis method. The results reveal that the SBS has a greater enhancement effect on the high-temperature performance of sealant than CR. Increasing the SBS and CR content in the sealant could enhance the sealant’s high-temperature performance, stiffness, and elasticity. Compared with asphalt-based sealant and one-component modified asphalt-based sealant, SBS/CR-modified asphalt sealant has greater viscosity and higher temperature deformation resistance. Additionally, SBS can increase the stress level of the sealant, thereby enhancing the resistance of the sealant to permanent deformation. View Full-Text
Keywords: sealant; SBS; rubber crumb; high-temperature performance; permanent deformation resistance sealant; SBS; rubber crumb; high-temperature performance; permanent deformation resistance
Show Figures

Figure 1

MDPI and ACS Style

Gong, Y.; Wu, S.; Zhang, Y.; Pang, Y.; Ma, Y. Investigation of the High-Temperature and Rheological Properties for Asphalt Sealant Modified by SBS and Rubber Crumb. Polymers 2022, 14, 2558. https://doi.org/10.3390/polym14132558

AMA Style

Gong Y, Wu S, Zhang Y, Pang Y, Ma Y. Investigation of the High-Temperature and Rheological Properties for Asphalt Sealant Modified by SBS and Rubber Crumb. Polymers. 2022; 14(13):2558. https://doi.org/10.3390/polym14132558

Chicago/Turabian Style

Gong, Yafeng, Shuzheng Wu, Yuwei Zhang, Yunze Pang, and Yulin Ma. 2022. "Investigation of the High-Temperature and Rheological Properties for Asphalt Sealant Modified by SBS and Rubber Crumb" Polymers 14, no. 13: 2558. https://doi.org/10.3390/polym14132558

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop