PMID- 33567546
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20210303
IS  - 1996-1944 (Print)
IS  - 1996-1944 (Electronic)
IS  - 1996-1944 (Linking)
VI  - 14
IP  - 4
DP  - 2021 Feb 8
TI  - Influence of Compound Modification of Oil Sands De-Oiled Asphalt and 
      Polyphosphoric Acid on High- and Low-Temperature Performance of 
      Styrene-Butadiene-Styrene-Modified Asphalt.
LID - 10.3390/ma14040797 [doi]
LID - 797
AB  - Oil sands de-oiled asphalt (OSDOA) has become a bottleneck for refineries due to 
      its enormous production and huge landfill costs. Applying OSDOA as a modifier is 
      an effective way to reduce environmental pollution and disposal cost. In this 
      study, the influences of OSDOA and polyphosphoric acid (PPA) compound 
      modification on styrene-butadiene-styrene (SBS)-modified binder were 
      investigated. The high-temperature rutting resistance, low-temperature anti-crack 
      performance and fatigue resistance were obtained by dynamic shear rheometer (DSR) 
      and bending beam rheometer (BBR) test. Storage stability and microstructure were 
      also investigated by storage test and Fourier-transform infrared (FTIR) 
      spectroscopy. The results demonstrated that the compound modification of 
      OSDOA/PPA dramatically enhanced the deformation resistance of SBS-modified binder 
      and reduced its low-temperature cracking resistance. The anti-fatigue performance 
      was also decreased. Moreover, the combined effect of OSDOA and PPA could produce 
      composite modified asphalt with excellent storage stability, which was verified 
      by desirable fluorescence images. Furthermore, both physical and chemical 
      interactions coexisted during the OSDOA/PPA compound modification process. 
      Consequently, the optimal doses of OSDOA and PPA were determined to be 10 wt% and 
      1.0 wt%, considering of the balance between high- and low-temperature 
      characteristics and storage stability of composite modified asphalt.
FAU - Pei, Xiaoguang
AU  - Pei X
AUID- ORCID: 0000-0003-3585-3524
AD  - State Key Laboratory of Heavy Oil Processing, China University of Petroleum, 
      Qingdao 266580, China.
FAU - Fan, Weiyu
AU  - Fan W
AD  - State Key Laboratory of Heavy Oil Processing, China University of Petroleum, 
      Qingdao 266580, China.
LA  - eng
PT  - Journal Article
DEP - 20210208
PL  - Switzerland
TA  - Materials (Basel)
JT  - Materials (Basel, Switzerland)
JID - 101555929
PMC - PMC7915468
OTO - NOTNLM
OT  - composite modified asphalt
OT  - microstructure
OT  - oil sands de-oiled asphalt
OT  - polyphosphoric acid
OT  - rheological properties
OT  - storage stability
COIS- There is no conflict of interest in the publication of this paper.
EDAT- 2021/02/12 06:00
MHDA- 2021/02/12 06:01
PMCR- 2021/02/08
CRDT- 2021/02/11 01:00
PHST- 2020/12/07 00:00 [received]
PHST- 2021/01/15 00:00 [revised]
PHST- 2021/01/25 00:00 [accepted]
PHST- 2021/02/11 01:00 [entrez]
PHST- 2021/02/12 06:00 [pubmed]
PHST- 2021/02/12 06:01 [medline]
PHST- 2021/02/08 00:00 [pmc-release]
AID - ma14040797 [pii]
AID - materials-14-00797 [pii]
AID - 10.3390/ma14040797 [doi]
PST - epublish
SO  - Materials (Basel). 2021 Feb 8;14(4):797. doi: 10.3390/ma14040797.