Modélisation dynamique de la thermo-viscoélasticité des matériaux bitumeux : Application aux essais FWD sur les structures des chaussées

Abstract : The diagnosis of the road fleet becomes a necessary step prior to themaintenance and the repair of pavement structures. The importance of a finer analysis of the results of the non-destructive testing methods can eventually achieve to cost and energy savings for the maintenance and construction. This phD thesis introduces a thermo-visco-elastic model for intersting the behavior ofbituminous pavement materials, using the complex modulus and damping from master curves. The resolution of the dynamic problem is performed thanks to a frequency approach. This approach is particularly applicable to a FWD test on which climatic variations are studied. In situ tests, carried out on two instrumented sites, are used to validate the model. The obtained of good results suggests the use of this model through a multi-criteria analysison deflection basins and of the records for the future development of a backcalculation dynamic model.
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Submitted on : Thursday, July 21, 2016 - 9:59:07 AM
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Rémi Tautou. Modélisation dynamique de la thermo-viscoélasticité des matériaux bitumeux : Application aux essais FWD sur les structures des chaussées. Matériaux composites et construction. Université de Limoges, 2016. Français. ⟨NNT : 2016LIMO0031⟩. ⟨tel-01347463⟩

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