Asphalt recycling in polymer modified pavement: A test section and recommendations
Mārtiņš Zaumanis, Lily D. Poulikakos, Martín Arraigada, Bernhard Kunz, Urs Schellenberg, Christoph Gassmann
Abstract
While recycling of Reclaimed Asphalt Pavement (RAP) is accelerating, road owners still often restrict the use of RAP in polymer-modified pavement. Here we used a balanced mixture design for preparing polymer-modified asphalt mixtures for wearing and binder courses having 30 % to 60 % RAP content. Findings from the paved test section show that it is possible to design polymer-modified mixtures with 30 % to 50 % RAP that have a good crack propagation resistance, high fatigue resistance, acceptable stiffness, and sufficient rutting resistance. Based on the findings, recommendations for RAP use in polymer-modified layers are provided.
Topics & Concepts
AsphaltRutMaterials scienceAsphalt pavementComposite materialPolymerStiffnessSection (typography)Geotechnical engineeringEngineeringComputer scienceOperating systemAsphalt Pavement Performance EvaluationInfrastructure Maintenance and MonitoringInnovative concrete reinforcement materials