Evaluation of Petroleum Resin in Rubberized Asphalt Binder

Hyun Hwan Kim, Mithil Mazumder, Moon-Sup Lee and Soon-Jae Lee
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Hyun Hwan Kim: Department of Engineering Technology, Texas State University, San Marcos, TX 78666, USA
Mithil Mazumder: Department of Engineering Technology, Texas State University, San Marcos, TX 78666, USA
Moon-Sup Lee: Korea Institute of Civil Engineering and Building Technology, Goyang 10223, Korea
Soon-Jae Lee: Department of Engineering Technology, Texas State University, San Marcos, TX 78666, USA

Sustainability, 2021, vol. 13, issue 16, 1-14

Abstract: The crumb rubber modified (CRM) binder was evaluated considering the general operating temperatures of high, intermediate, and low temperatures. CRM binders were produced with four different contents (0, 5, 10, and 15%) using the base asphalt binder (PG64-22). Then, they were artificially aged by a rolling thin-film oven (RTFO) and pressure aging vessel (PAV). Superpave binder tests using a rotational viscometer (RV), dynamic shear rheometer (DSR), and bending beam rheometer (BBR) was applied to characterize the performance of the original and aged binders. Multiple stress creep recovery (MSCR) tests were also performed for deeper rutting characterization. The results of this study are as follows: (1) the presence of PR increases the binder viscosity, (2) the integration of CRM greatly improved the rutting resistance of the binder, and it was found that PR also improved the rutting characteristics, and (3) it is observed that PR is detrimental to the cracking properties of CRM binders.

Keywords: CRM binder; PR; rutting; cracking; MSCR (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
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