@article{c953a666e487448e9cb70dab8cf1110a,
title = "Acoustic emission quantitative evaluation of rejuvenators to restore embrittlement temperatures to oxidized asphalt mixtures",
abstract = "An acoustic emission (AE) approach to evaluate the effectiveness of rejuvenators in restoring aged asphalt concrete to its low-temperature performance grade is presented. Specimens, oven-aged for 36 h at 135 °C, were treated with rejuvenators (10% of binder weight). After 2, 4, 6, and 8 weeks of dwell time, the specimens were tested using AE while being cooled down to −35 °C. It was observed that after four weeks of dwell time, the rejuvenated-treated specimens had recuperated the original embrittlement temperatures. After eight weeks, the specimens{\textquoteright} embrittlement temperature were about three grades (∼18 °C) lower than those of the aged temperatures.",
keywords = "Acoustic emission, Asphalt binders, Asphalt concrete, Embrittlement temperature, Rejuvenators, Source location",
author = "Zhe Sun and Behzad Behnia and Buttlar, {William G.} and Henrique Reis",
note = "Funding Information: The authors are grateful for the partial support of the US Airforce Civil Engineering Center ( AFCEC ) including the technical support of our technical contacts Dr. George Vansteenburg and Mr. Jeb S. tingle (ERDC-RDE-GSL-MS). The authors would also like to thank the Midwest Transportation Center ( MTC ) and the U.S. Department of Transportation Office of the Assistant Secretary for Research and Technology (USDOT/OST-R) for co-sponsoring partial funding of this research as part of contract number DTRT13-G-UTC37. The authors are also very thankful to Mr. Gerald A. Huber and Mr. Herb Wissel from the Heritage Group for the technical support and donation of rejuvenator materials. Any opinions, findings and conclusions or recommendations expressed in this publication are those of the authors and do not necessarily reflect the views of any sponsoring agency. Publisher Copyright: {\textcopyright} 2016",
year = "2016",
month = nov,
day = "15",
doi = "10.1016/j.conbuildmat.2016.09.108",
language = "English (US)",
volume = "126",
pages = "913--923",
journal = "Construction and Building Materials",
issn = "0950-0618",
publisher = "Elsevier Limited",
}