Assessment of aged and unaged hot and warm asphalt concrete containing high reclaimed asphalt pavement rate rejuvenated with waste cooking oil

被引：5
作者：
Capitao, Silvino [1 ,2 ]
Picado-Santos, Luis [2 ]
Almeida, Arminda [3 ,4 ]
Mendes, Fabio
机构：
[1] Inst Politecn Coimbra, Inst Super Engn Coimbra, Dept Engn Civil, SusCita, Rua Pedro Nunes, P-3030199 Coimbra, Portugal
[2] Univ Lisbon, CERIS, Inst Super Tecn, Ave Rovisco Pais, P-1049001 Lisbon, Portugal
[3] Univ Coimbra, Dept Engn Civil, ISISE, Rua Luis Reis St, P-3030788 Coimbra, Portugal
[4] CITTA Ctr Invest Terr Transportes & Ambiente, Rua Dr Roberto Frias, P-4200465 Porto, Portugal
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2023年 / 400卷
关键词：
Reclaimed asphalt pavement reuse; Waste cooking oil; Dry process; Mechanical performance; Secondary ageing; Fatigue resistance; Functional properties; Workability; RAP BINDER; TRANSESTERIFICATION; DIFFUSION;
D O I：
10.1016/j.conbuildmat.2023.132801
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This study aims at designing and performing mechanical and functional characterisation of asphalt mixtures with a high rate of reclaimed asphalt pavement (RAP) with waste cooking oil (WCO) as a binder's rejuvenator. The WCO was added by the dry method and was not subjected to any special previous treatment. Besides the Marshall properties, the mix design was based on wheel tracking and water sensitivity tests. Complementarily, the testing plan included the evaluation of stiffness, resistance to fatigue and functional properties before and after a secondary long-term ageing procedure. The results show that the studied hot and warm-asphalt mixtures with 80 and 60% of RAP are suitable for medium/low-traffic road pavements, even considering a long-term ageing time of 5 years.
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页数：14
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