Asphalt mixture modification with a plastomeric compound containing recycled plastic: laboratory and field investigation

Abstract The use of recycled plastic in asphalt pavements represents a sustainable and economic choice which, if correctly designed, could significantly improve the resistance against typical distresses flexible pavements. For this reason, paper aims at evaluating mechanical properties two mixtures modified with plastomeric compounds through dry method, by comparing their results those obtained for reference mixture Styrene–Butadiene–Styrene (SBS) polymers. One consisted polymers, whereas other was made graphene. experimental program included laboratory tests on shear gyratory compacted specimens cores extracted from real-scale field trial. showed that stiffness, fatigue rutting polymeric compound were comparable to mixture. Finally, Falling Weight Deflectometer (FWD) campaign, performed after one year service life pavement, reduced structural response sections constructed respect because compaction issues possible interlayer de-bonding effects.