0000000000242688

AUTHOR

Cinzia Maggiore

showing 2 related works from this author

A Dynamic Model of Ballasted Rail Track with Bituminous Sub-Ballast Layer

2012

AbstractThe bituminous sub-ballast layer within the ballasted rail track allows some mechanical and environmental advantages. An analytical model of a ballasted rail track with sub-ballast layer has been proposed by considering the rail as viscous-elastic continuous beam discretely supported, at four levels of elasticity.The model was used to compare the mechanical performance of both ballasted track with and without bituminous sub-ballast layer. The results confirmed that the bituminous sub-ballast layer reduces the dynamic forces on the ground and achieves the technical objectives as reduction of ground borne vibrations and increase of the design life of the rail track.

BallastEngineeringBituminous sub-ballast layer ballasted rail track rail track model vehicle-track interactionMathematical modelbusiness.industryBallasted rail trackRail track modelStructural engineeringContinuous beamTrack (rail transport)Vehicle-track interactionVibrationAsphaltService lifeSettore ICAR/04 - Strade Ferrovie Ed AeroportiGeneral Materials ScienceElasticity (economics)businessBituminous sub-ballast layerProcedia - Social and Behavioral Sciences
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Mechanical characterization of dry asphalt rubber concrete for base layers by means of the four bending points tests

2012

The mechanical characterisation of the asphalt concrete in terms of both the fatigue resistance and the stiffness modulus is necessary to use any design method of the flexible road pavements. Even more the determination of these mechanical properties is necessary if the asphalt concrete investigated is an innovative material as a dry asphalt rubber concrete DARC (i.e. a bituminous mixture with rubber via dry process). Such material is less known and investigated than the asphalt rubber concrete via wet process, even if its application implies peculiar economical and environmental advantages such as no specialized equipment or significant plant modifications and large quantity of recycled wa…

Materials scienceNatural rubberAsphaltvisual_artBase (geometry)visual_art.visual_art_mediumFatigue Stiffness modulus Dry asphalt rubber concrete 4 Point Bending TestSettore ICAR/04 - Strade Ferrovie Ed AeroportiGeotechnical engineeringBendingComposite materialCharacterization (materials science)
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