TY - JOUR
T1 - Laboratory evaluation of properties of modified asphalt binders with high content polymer and softening agent
AU - Xie, Zhaoxing
AU - Zhuo, Zhuang
AU - Ali, Ayman
AU - Al-Badr, Basel
AU - Mehta, Yusuf
AU - DeCarlo, Christopher
AU - Lein, Wade
N1 - Funding Information:
The experiments described and the resulting data presented herein, unless otherwise noted, were funded under PE 0602784A, Project T53 "Military Engineering Applied Research,” Task 08 under Contract W913E518C0008, managed by the US Army Engineer Research and Development Center (ERDC). The work described in this paper was conducted at Rowan University’s Center for Research and Education in Advanced Transportation Engineering Systems (CREATEs), Mullica Hill, NJ. Permission was granted by the Director, Geotechnical and Structures Laboratory to publish this information. Also, the authors would like to thank Bob Klutz from Kraton Polymers for his help in asphalt binder modification.
Publisher Copyright:
© 2021 Association of Asphalt Paving Technologist. All rights reserved.
PY - 2021
Y1 - 2021
N2 - The objective of the study is to evaluate the impact of the combination of high content polymer and softening agent on the properties of modified binders. To achieve the objective, a base binder of neat PG 52-28, styrene-butadiene-styrene (SBS), ground tire rubber (GTR), and two softening agents (SA) (bio-based oil and aromatic oil) were used to produce modified binders. High temperature, viscoelastic rheological, and low temperature cracking properties were investigated by Dynamic Shear Rheometer (DSR), Multiple Stress Creep Recovery (MSCR), frequency sweep, standard Bending Beam Rheometer (BBR) and BBR strength tests. The testing results indicate that the combination of high content polymer and softening agent significantly improved low temperature cracking resistance as well as high temperature properties.
AB - The objective of the study is to evaluate the impact of the combination of high content polymer and softening agent on the properties of modified binders. To achieve the objective, a base binder of neat PG 52-28, styrene-butadiene-styrene (SBS), ground tire rubber (GTR), and two softening agents (SA) (bio-based oil and aromatic oil) were used to produce modified binders. High temperature, viscoelastic rheological, and low temperature cracking properties were investigated by Dynamic Shear Rheometer (DSR), Multiple Stress Creep Recovery (MSCR), frequency sweep, standard Bending Beam Rheometer (BBR) and BBR strength tests. The testing results indicate that the combination of high content polymer and softening agent significantly improved low temperature cracking resistance as well as high temperature properties.
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M3 - Conference article
AN - SCOPUS:85110528158
VL - 89
SP - 137
EP - 172
JO - Asphalt Paving Technology: Association of Asphalt Paving Technologists-Proceedings of the Technical Sessions
JF - Asphalt Paving Technology: Association of Asphalt Paving Technologists-Proceedings of the Technical Sessions
SN - 0270-2932
T2 - Asphalt Paving Technology 2020, AAPT 2020
Y2 - 14 September 2020 through 16 September 2020
ER -