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dc.contributor.authorWang, Fusong
dc.contributor.authorZhang, Lei
dc.contributor.authorYan, Boxiang
dc.contributor.authorKong, Dezhi
dc.contributor.authorLi, Yuanyuan
dc.contributor.authorWu, Shaopeng
dc.date.accessioned2022-05-03T08:50:30Z
dc.date.available2022-05-03T08:50:30Z
dc.date.created2020-03-25T10:23:24Z
dc.date.issued2019
dc.identifier.issn1996-1944
dc.identifier.urihttps://hdl.handle.net/11250/2993797
dc.description.abstractUsing rejuvenator to improve the asphalt pavement service state has become an increasing concern in recent years. This study mainly focuses on the diffusion analysis between rejuvenator and aged asphalt, and further rheological influences by addition of rejuvenators. First, two rejuvenators, oil rejuvenator (OR) and penetrative rejuvenator (PR), were prepared in the laboratory. Afterward, the diffused performance of rejuvenators was investigated by viscosity, contact angle, and three self-designed feasible test indexes, which were sinking time test, softening rate test, and gravitational collapsing test. Beside the comparison in physical properties tests of aged and rejuvenated asphalt, their rheological performances were also evaluated by dynamic shear rheometer (DSR) and bending beam rheometer (BBR) respectively. The results indicated that three proposed indexes can comparatively analyze the diffusion rate of different rejuvenators on aged asphalt effectively. Furthermore, all adopted test indexes signaled that PR has a faster diffusion rate and better penetrative efficiency. Comparatively, exceeding rejuvenator dosage would increase the rutting possibility. Nevertheless, 2.5 wt% addition dosage for both OR and PR into aged asphalt can promote appropriate improvement in physical properties and crack resistance. The study would supply a significant reference for penetrative rejuvenator preparation and its diffusing evaluation.en_US
dc.language.isoengen_US
dc.publisherMDPIen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleDiffusion mechanism of rejuvenator and its effects on the physical and rheological performance of aged asphalt binderen_US
dc.title.alternativeDiffusion mechanism of rejuvenator and its effects on the physical and rheological performance of aged asphalt binderen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.source.volume12en_US
dc.source.journalMaterialsen_US
dc.source.issue24en_US
dc.identifier.doi10.3390/MA12244130
dc.identifier.cristin1803401
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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