TY - GEN
T1 - The recycling of reclaimed asphalt rubber pavement
T2 - 7th Chinese-European Workshop on Functional Pavements, CEW 2023
AU - Li, Danning
AU - Leng, Zhen
AU - Yao, Linyi
AU - Zou, Fuliao
AU - Li, Gaoyang
AU - Wang, Haopeng
N1 - Publisher Copyright:
© 2024 The Author(s).
PY - 2023/11/15
Y1 - 2023/11/15
N2 - The application of asphalt rubber (AR) pavement has been increasing due to its superior performance, but a tailor-made recycling framework considering the special aging and rejuvenation mechanisms of AR binder is missing. In this study, three different rejuvenation schemes were proposed for the reclaimed asphalt rubber pavement (RARP) aiming at recovering the light components, supplementing the swelling rubber content, and both recovering and supplementing, respectively. The results of mechanical tests indicate that the supplementing of swelling rubber content is much more effective in improving the cracking and aging resistances of RARP-included mixture than the common rejuvenation method of adding rejuvenator. The life cycle analysis finds out that the recycling of RARP can significantly reduce greenhouse gas emissions (GHG) and cost mainly because of the saving of virgin bitumen and aggregates.
AB - The application of asphalt rubber (AR) pavement has been increasing due to its superior performance, but a tailor-made recycling framework considering the special aging and rejuvenation mechanisms of AR binder is missing. In this study, three different rejuvenation schemes were proposed for the reclaimed asphalt rubber pavement (RARP) aiming at recovering the light components, supplementing the swelling rubber content, and both recovering and supplementing, respectively. The results of mechanical tests indicate that the supplementing of swelling rubber content is much more effective in improving the cracking and aging resistances of RARP-included mixture than the common rejuvenation method of adding rejuvenator. The life cycle analysis finds out that the recycling of RARP can significantly reduce greenhouse gas emissions (GHG) and cost mainly because of the saving of virgin bitumen and aggregates.
UR - http://www.scopus.com/inward/record.url?scp=85185563385&partnerID=8YFLogxK
U2 - 10.1201/9781003387374-11
DO - 10.1201/9781003387374-11
M3 - Conference article published in proceeding or book
AN - SCOPUS:85185563385
SN - 9781032480923
T3 - Advances in Functional Pavements - Proceedings of the 7th Chinese-European Workshop on Functional Pavements, CEW 2023
SP - 53
EP - 57
BT - Advances in Functional Pavements - Proceedings of the 7th Chinese-European Workshop on Functional Pavements, CEW 2023
A2 - Zhang, Yuqing
A2 - Airey, Gordon
A2 - Rahman, Mujib
A2 - Wang, Haopeng
PB - CRC Press/Balkema
Y2 - 2 July 2023 through 4 July 2023
ER -