TY - JOUR
T1 - Laboratory performance of dense graded asphalt mixtures prepared using highly polymer modified binders containing corn oil as softening agent
AU - Ali, Ayman
AU - Kabir, Sk Faisal
AU - Al-Badr, Basel
AU - Alfalah, Ahmad
AU - Xie, Zhaoxing
AU - Decarlo, Christopher
AU - Elshaer, Mohamed
AU - Mehta, Yusuf
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. Special thanks are also due to Mr. Keith Sterling for providing the aggregates was used in this study, Mr. Alex McCurdy for supplying the corn oil softening agent, Mr. Bob Klutz for providing comments and the SBS modifier, and Ms. Paula Marc for supplying the PG52-34 binder. Authors would like to thank Ms. Caitlin Purdy for language check.
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. Special thanks are also due to Mr. Keith Sterling for providing the aggregates was used in this study, Mr. Alex McCurdy for supplying the corn oil softening agent, Mr. Bob Klutz for providing comments and the SBS modifier, and Ms. Paula Marc for supplying the PG52-34 binder. Authors would like to thank Ms. Caitlin Purdy for language check. The authors confirm contribution to the paper as follows: study conception and design: Ayman Ali, Zhaoxing Xie, Christopher Decarlo, Sk Faisal Kabir, Yusuf Mehta; data collection, analysis, and interpretation of results: Ayman Ali, Basel Al-Badr, and Ahmad Alfalah; draft manuscript preparation: Ayman Ali, Sk Faisal Kabir, Basel Al-Badr, Yusuf Mehta, Christopher Decarlo, and Mohamad Elshaer. All authors reviewed the results and approved the final version of the manuscript. All data, models, and code generated or used during the study appear in the submitted article.
Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/8/22
Y1 - 2022/8/22
N2 - This study evaluated the impact of aging on High Polymer Modified Asphalt (HPMA) mixtures containing a softening agent (SA). The aging susceptibility was evaluated in terms of rutting, cracking, and durability. Four asphalt mixtures were prepared, one with PG 52–34 binder as control, and three others using modified PG 52–34 with varying dosages of Styrene Butadiene Styrene (SBS) and corn oil (SA). The tests performed to evaluate the impact of aging (short, long, extended long term) were the Dynamic Complex Modulus, Hamburg Wheel Tracking, Flow Number, Indirect Tension and semi-Circular Bend tests. Based on these testing results, SBS and SA increased the durability and rutting resistance of asphalt mixtures. Modified asphalt mixtures also showed better cracking resistance than the control mix (i.e. lowering of crack propagation). However, with aging, fatigue cracking performance diminished while remaining comparable to the control mix. A balanced dosage of SBS (7.5%) and SA (7%) led to the best improvement in durability, rutting, and short-term cracking performance.
AB - This study evaluated the impact of aging on High Polymer Modified Asphalt (HPMA) mixtures containing a softening agent (SA). The aging susceptibility was evaluated in terms of rutting, cracking, and durability. Four asphalt mixtures were prepared, one with PG 52–34 binder as control, and three others using modified PG 52–34 with varying dosages of Styrene Butadiene Styrene (SBS) and corn oil (SA). The tests performed to evaluate the impact of aging (short, long, extended long term) were the Dynamic Complex Modulus, Hamburg Wheel Tracking, Flow Number, Indirect Tension and semi-Circular Bend tests. Based on these testing results, SBS and SA increased the durability and rutting resistance of asphalt mixtures. Modified asphalt mixtures also showed better cracking resistance than the control mix (i.e. lowering of crack propagation). However, with aging, fatigue cracking performance diminished while remaining comparable to the control mix. A balanced dosage of SBS (7.5%) and SA (7%) led to the best improvement in durability, rutting, and short-term cracking performance.
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U2 - 10.1016/j.conbuildmat.2022.128336
DO - 10.1016/j.conbuildmat.2022.128336
M3 - Article
AN - SCOPUS:85133895478
VL - 345
JO - Construction and Building Materials
JF - Construction and Building Materials
SN - 0950-0618
M1 - 128336
ER -