Influence of different anti-stripping agents on the rheological properties of asphalt binder at high temperature Chongzheng Zhu a , Guoqing Xu a , Henglong Zhang a,⇑ , Feipeng Xiao b , Serji Amirkhanian c , Chaofan Wu d a Key Laboratory for Green & Advanced Civil Engineering Materials and Application Technology of Hunan Province, College of Civil Engineering, Hunan University, Changsha 410082, China b Key Laboratory of Road and Traffic Engineering of Ministry of Education, Tongji University, Shanghai 201804, China c Department of Civil, Construction, and Environmental Engineering, University of Alabama, Tuscaloosa 35487, USA d Hunan Yunzhong Recycling Technology Co., Ltd, Hunan, Changsha 410205, China highlights  The changes of rheological properties of ASA modified asphalt binders depend on the ASA types and its dosages.  The high temperature performance grade of all ASA modified asphalt binders is the same as blank sample.  Non-recoverable creep compliance susceptibility for stress level is weakened evidently by adding ASAs.  ASAs can effectively improve the ability of asphalt binder to resist RTFO. article info Article history: Received 26 September 2017 Received in revised form 21 December 2017 Accepted 28 December 2017 Keywords: Asphalt binder Anti-stripping agents Rheological properties High temperature abstract Effects of different anti-stripping agents (ASAs) (M5000, M1 and LOF-6500) with various dosages (0.25%, 0.50% and 0.75% by weight of asphalt binder) on the rheological properties of asphalt binder before and after rolling thin film oven test (RTFO) at high temperature were investigated. The tested rheological properties included rotational viscosity, complex modulus (G / ), phase angle (d), rutting resistance factor (G / /sind), failure temperature, non-recoverable creep compliance (J nr ) and amplitude sweep. The results indicated that the rheological properties such as viscosity, G / , d,G / /sind and failure temperature of ASA modified asphalt binders before aging depended on the ASA types and its dosages. After RTFO, all ASA modified asphalt binders showed the lower high temperature stability compared with blank sample, however, the high temperature performance grade maintained 64 °C unchanged. Besides, the J nr susceptibility for stress level was weakened evidently by adding ASAs. As a result of the amplitude sweep test, compared with blank sample, all ASA modified asphalt binders after RTFO had the higher d and G / values. Additionally, the introduction of ASAs could effectively improve the ability of asphalt binder to resist RTFO. Moreover, compared with M5000 and LOF-6500, the improvement degree of M1 was more apparent. Ó 2017 Elsevier Ltd. All rights reserved. 1. Introduction Asphalt pavement has been widely applied for highway con- struction at present because of its excellent pavement perfor- mances. As two main components in asphalt pavement, the combination condition of asphalt binder and aggregate is primary responsible for realizing the excellent performances. However, some factors such as water penetration, traffic loading and the poor properties of asphalt binder and aggregate may lead to the breaking of the bond between asphalt binder and aggregate parti- cles [1–5]. This phenomenon is also termed as stripping. Stripping can further cause some more serious distress such as rutting, cor- rugations, cracking etc., and finally the complete failure of asphalt pavement [6–9]. Therefore, it is significant to prevent stripping in asphalt pavement. Many researchers found that adding antistripping agents (ASAs) could effectively enhance stripping resistance of asphalt pavement [10–12]. Arabani et al. [11] evaluated the influence of Zycosoil as an antistrip agent on the moisture sensitivity of warm mix asphalt (WMA) by means of surface free energy, and determined that add- ing Zycosoil increased the surface energy of adhesion between https://doi.org/10.1016/j.conbuildmat.2017.12.236 0950-0618/Ó 2017 Elsevier Ltd. All rights reserved. ⇑ Corresponding author. E-mail address: hlzhang@hnu.edu.cn (H. Zhang). Construction and Building Materials 164 (2018) 317–325 Contents lists available at ScienceDirect Construction and Building Materials journal homepage: www.elsevier.com/locate/conbuildmat