6533b858fe1ef96bd12b6cf5
RESEARCH PRODUCT
Analytical approach for the mix design optimisation of bituminous mixtures with crumb rubber
Sara BressiNatalia Colinas-armijoGaetano Maria Di Minosubject
Crumb rubber; Mix design; Rubberised asphalt; Superpave gyratory compactor; Civil and Structural Engineering; Building and Construction; Materials Science (all); Mechanics of MaterialsMaterials science0211 other engineering and technologies020101 civil engineeringMix design02 engineering and technologyMix designRubberised asphalt0201 civil engineeringNatural rubberAsphalt pavement021105 building & constructionSettore ICAR/04 - Strade Ferrovie Ed AeroportiGeneral Materials ScienceCrumb rubberComposite materialCivil and Structural EngineeringCrumb rubberBuilding and ConstructionStrength of materialsSuperpave gyratory compactorCrumb rubber Superpave gyratory compactor Mix design Rubberised asphaltAsphaltMechanics of Materialsvisual_artSolid mechanicsvisual_art.visual_art_mediumMaterials Science (all)Deformation (engineering)description
The present paper provides a basis for defining a mix design method specifically tailored to rubberised asphalt that takes into account the behaviour of crumb rubber. An analytical approach to quantifying the recovered deformation of crumb rubber in the post-compaction phase has been developed in order to adjust the number of gyrations proposed by the Superpave method for compacting specimens of hot mix asphalt using a Superpave gyratory compactor. The maximum allowable amount of rubber has been calculated. Finally, a step-by-step protocol has been proposed in order to fabricate and compact crumb rubber modified mixtures with the gyratory compactor.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-01-25 |