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Rheological measurements reveal that the viscoelastic properties of a 60/70 penetration grade bitumen are improved when either a virgin EVA or a recycled EVA copolymer of similar vinyl acetate content are mixed with it. Risk of cracking at low temperatures and rutting at high temperatures, are both reduced. Better viscoelastic features are obtained with the bitumen modified with recycled EVA, probably...
This paper deals with the viscous properties of recycled-polymer modified bitumens (PMBs) in a wide range of temperatures. With this aim, two different penetration grade bitumens (60/70 and 150/200) and recycled EVA copolymer (EVA R ) from agriculture films were processed in an open reactor using a four blade propeller. Polymer concentration ranged from 0 to 9wt%. Viscous flow and DSC measurements,...
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