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RESEARCH PRODUCT
Linear ViscoElastic (LVE) Behaviour of Pure Bitumen via Fractional Model
Clara CelauroClaudia FecarottiAntonina Pirrottasubject
complex modulubitumen.Materials scienceMathematical modelPhase angleThermodynamicsModulusDynamic mechanical analysisFractional modelViscoelasticityCreepAsphaltForensic engineeringRange (statistics)Settore ICAR/04 - Strade Ferrovie Ed AeroportiGeneral Materials ScienceCreep/recoverySettore ICAR/08 - Scienza Delle CostruzionibitumenComplex modulusdescription
AbstractBy fitting experimental data from static creep/recovery carried out on pure bitumen, it is shown that the fractional model proposed enables the description of both creep and recovery behaviour with fewer parameters than those needed by other models in the literature. In particular, the model is fitted to experimental data of complex modulus |G*| and phase angle δ° obtained from Dynamic Mechanical Analysis. Lastly, it is demonstrated that when the fractional model is used, complex modulus isotherms for a range of frequencies can be created simply starting from isochronals at f = 1Hz.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-10-01 | Procedia - Social and Behavioral Sciences |