Case Study on Forensic Evaluation of Field Performance of 100% Reclaimed Asphalt Pavement Cold Mix with Rejuvenator in a Low-Volume Road
Publication: Journal of Transportation Engineering, Part B: Pavements
Volume 148, Issue 3
Abstract
Utilization of reclaimed asphalt pavement (RAP) at lower production temperatures is a low-carbon and sustainable technology in the asphalt industry. This study provides a forensic evaluation of a low-volume road in Florida that used 100% RAP cold mix with a rejuvenator. Two field distress surveys were completed after 7 and 22 months of service, and the effects of staged construction and edge compaction on the road conditions were evaluated. Alongside the field survey, the asphalt mixture’s properties were analyzed in terms of field cores’ volumetric properties, Cantabro loss, Hamburg wheel tracking, indirect tensile resilient modulus, and fracture tests. The ride quality was good, but the main distresses were weathering and raveling. It was determined that the field cores had high air voids, resulting in high Cantabro loss, which was consistent with field raveling observations. The Hamburg wheel-tracking test results showed that rutting resistance and moisture resistance were good for a 100% RAP cold mix with rejuvenator. To improve field performance, it is recommended to mix and compact a 100% RAP cold mix with rejuvenator on the same day, as well as improve compaction on the edge to achieve higher in-place density.
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Data Availability Statement
All data that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
The authors would like to acknowledge Blacklidge Emulsion Inc. and Walton County Public Works in Florida for their technical assistances technical assistance, and Dr. Shihui Shen and technicians at Penn State Altoona for conducting Hamburg wheel-tracking test, as well as Dr. Baoshan Huang and students at the University of Tennessee for technical support.
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Information & Authors
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Published In
Journal of Transportation Engineering, Part B: Pavements
Volume 148 • Issue 3 • September 2022
Copyright
© 2022 American Society of Civil Engineers.
History
Received: Oct 6, 2021
Accepted: Mar 8, 2022
Published online: May 7, 2022
Published in print: Sep 1, 2022
Discussion open until: Oct 7, 2022
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Cited by
- Federico Gulisano, Guillermo Flores, Juan Gallego, Healing response of cold recycled asphalt mixtures with electric arc furnace slag under microwave heating and re-compaction, Materials and Structures, 10.1617/s11527-024-02326-w, 57, 4, (2024).
- Shenghua Wu, Cade Marty, Three-Year Field Performance of a Low Volume Road With 100% Reclaimed Asphalt Pavement Cold Mix With Rejuvenator, Transportation Research Record: Journal of the Transportation Research Board, 10.1177/03611981231153648, 2677, 7, (532-544), (2023).