TY - JOUR
T1 - Investigation on high-temperature performance of waste-based high-viscosity asphalt binders (WHABs) by repeated creep recovery (RCR) test
AU - Cai, Jun
AU - Wang, Yansong
AU - Wang, Di
AU - Li, Rui
AU - Zhang, Jiupeng
AU - Pei, Jianzhong
N1 - Funding Information:
This work was supported by the Department of Science & Technology of Shaanxi Province (Nos. 2017KCT-13, 2016ZDJC-24, and 2016KJXX-69), China Postdoctoral Science Foundation (No. 2017M620434), and the Special Fund for Basic Scientific Research of Central College of Chang'an University (Nos. 300102218413, and 310821175013). The authors gratefully acknowledge their financial support.
Publisher Copyright:
© remains with the author(s) or their institution(s).
PY - 2019
Y1 - 2019
N2 - This study reviewed and compared the test methods for the high-temperature performance of asphalt binder, and selected repeated creep recovery (RCR) test to evaluate the high-temperature performance of three waste-based high-viscosity asphalt binders (WHABs, including D-I, D-II, and F) and a control sample (Tafpack-Super modified asphalt, TMA). Meanwhile, shear stress, test temperature, and aging degree of binders, which could influence high-temperature behavior of binders, were also investigated, and related evaluation indexes including recovery compliance (R), non-recoverable creep compliance (Jnr), and viscous stiffness modulus (Gv) were compared. Results show that WHABs has much better high-temperature performance than TMA; shear stress has the most prominent effect on binders' high-temperature performance, followed by aging degree, and lastly the selected test temperature in γ-time curve results; R, Jnr, and Gv values results indicate aging degree has a significant effect on binders, and improving binders' aging performance can greatly improve the high-temperature performance.
AB - This study reviewed and compared the test methods for the high-temperature performance of asphalt binder, and selected repeated creep recovery (RCR) test to evaluate the high-temperature performance of three waste-based high-viscosity asphalt binders (WHABs, including D-I, D-II, and F) and a control sample (Tafpack-Super modified asphalt, TMA). Meanwhile, shear stress, test temperature, and aging degree of binders, which could influence high-temperature behavior of binders, were also investigated, and related evaluation indexes including recovery compliance (R), non-recoverable creep compliance (Jnr), and viscous stiffness modulus (Gv) were compared. Results show that WHABs has much better high-temperature performance than TMA; shear stress has the most prominent effect on binders' high-temperature performance, followed by aging degree, and lastly the selected test temperature in γ-time curve results; R, Jnr, and Gv values results indicate aging degree has a significant effect on binders, and improving binders' aging performance can greatly improve the high-temperature performance.
KW - Aging
KW - High-temperature performance
KW - Repeated creep recovery (RCR) test
KW - Tafpack-Super modified asphalt (TMA)
KW - Waste-based high-viscosity asphalt binders (WHABs)
UR - http://www.scopus.com/inward/record.url?scp=85075050185&partnerID=8YFLogxK
U2 - 10.1139/cjce-2018-0517
DO - 10.1139/cjce-2018-0517
M3 - Article
AN - SCOPUS:85075050185
VL - 46
SP - 403
EP - 412
JO - CANADIAN JOURNAL OF CIVIL ENGINEERING
JF - CANADIAN JOURNAL OF CIVIL ENGINEERING
SN - 0315-1468
IS - 5
ER -