PMID- 32445912
OWN - NLM
STAT- MEDLINE
DCOM- 20200609
LR  - 20200609
IS  - 1879-2456 (Electronic)
IS  - 0956-053X (Linking)
VI  - 110
DP  - 2020 Jun 1
TI  - Sustainable recovery of waste vegetable cooking oil and aged bitumen: Optimized 
      modification for short and long term aging cases.
PG  - 1-9
LID - S0956-053X(20)30238-5 [pii]
LID - 10.1016/j.wasman.2020.05.012 [doi]
AB  - Bitumen ages in the short and long-term due to environmental conditions. As the 
      bitumen ages, it loses its original properties and flexibility. Hardened bitumen 
      causes certain distresses in pavement that may endanger traffic safety and reduce 
      travel comfort. Bitumen is one of recoverable material, however some techniques 
      may not be ecological due to considerable energy, time, and cost. On the other 
      hand, recovering of aged bitumen might be eco-friendlier, energy-efficient, and 
      economic by using bio-based waste materials such as waste vegetable cooking oils 
      (WVCO). In this perspective, this paper was established on the idea of 
      sustainable recovery of aged bitumen and WVCO. Base bitumen was aged in case of 
      short-term (ST) and long-term (LT) in laboratory condition and modified with WVCO 
      ranging from 2 to 10% by weight of bitumen. To determine the effect of WVCO 
      modification on aged bitumen conventional and rheological test methods were 
      utilized. To find the optimum rate of WVCO for full recovery of aged bitumen, an 
      index called Pure Rejuvenation Index (PRI) was specified and applied for each 
      test results. It can be concluded from PRI analyses that WVCO can be used as 
      rejuvenator to recover aged bitumen and approximately 3% and 6% of WVCO are 
      required for ST and LT aged bitumen cases, respectively. However, different test 
      methods yield different optimum rates of WVCO for ST and LT aged bitumen. 
      Recovering of WVCO and aged bitumen by using together may provide environmental 
      protection and conservation of resources.
CI  - Copyright (c) 2020 Elsevier Ltd. All rights reserved.
FAU - Uz, Volkan Emre
AU  - Uz VE
AD  - Izmir Institute of Technology, Engineering Faculty, Department of Civil 
      Engineering, Izmir, Turkey.
FAU - Gokalp, Islam
AU  - Gokalp I
AD  - Adana Alparslan Turkes Science and Technology University, Engineering Faculty, 
      Department of Civil Engineering, Adana, Turkey. Electronic address: 
      islamgokalp@gmail.com.
LA  - eng
PT  - Journal Article
DEP - 20200519
PL  - United States
TA  - Waste Manag
JT  - Waste management (New York, N.Y.)
JID - 9884362
RN  - 0 (Hydrocarbons)
RN  - 8052-42-4 (asphalt)
SB  - IM
MH  - Cooking
MH  - *Hydrocarbons
MH  - *Vegetables
OTO - NOTNLM
OT  - Aging
OT  - Bitumen
OT  - Recovering
OT  - Sustainability
OT  - Waste vegetable cooking oil
COIS- Declaration of Competing Interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2020/05/24 06:00
MHDA- 2020/06/10 06:00
CRDT- 2020/05/24 06:00
PHST- 2019/12/09 00:00 [received]
PHST- 2020/04/11 00:00 [revised]
PHST- 2020/05/07 00:00 [accepted]
PHST- 2020/05/24 06:00 [pubmed]
PHST- 2020/06/10 06:00 [medline]
PHST- 2020/05/24 06:00 [entrez]
AID - S0956-053X(20)30238-5 [pii]
AID - 10.1016/j.wasman.2020.05.012 [doi]
PST - ppublish
SO  - Waste Manag. 2020 Jun 1;110:1-9. doi: 10.1016/j.wasman.2020.05.012. Epub 2020 May 
      19.