Naslov
Rheological properties and stability of ethylene vinyl acetate polymer-modified bitumen

Autori
Ocelić Bulatović, Vesna ; Rek, Vesna ; Jurkaš Marković, Kristina

Izvornik
Polymer engineering and science (0032-3888) 53 (2013), 11; 2276-2283

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
rheology ; morphology ; ageing ; blends

Sažetak
Polymers are commonly used to improve properties of bitumen (BIT) as a binder for asphalt. Polymers improve the temperature susceptibility of bitumen by increasing its stiffness at high service temperatures and by reducing its stiffness at low service temperatures. The addition of polymers as bitumen modifiers contributes to the BIT viscoelasticity. The aim of this paper was to study the effect of the addition of ethylene vinyl acetate (EVA) copolymer on the morphology, rheological and physical properties before and after aging. The influence of EVA contents on rheological and physical properties which are included in conventional tests before and after aging was investigated. The results indicated that the rheological and physical properties as well as the morphology of polymer-modified bitumen (PMB) depended on the polymer content. The rheological properties of road bitumen were improved by means of EVA polymer modification as proven by conventional tests, the rheological parameters G*, ni*, delta and resistance to permanent deformation, i.e. rutting.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

Napomena
Rad je prezentiran na skupu World Forum on Advanced Materials POLYCHAR 20, održanom od 26.-30.03.2012.g., Dubrovmik, Hrvatska.

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