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Titre: Performance of recycled asphalt mixtures formulated with modified bitumen
Auteur(s): Oualit, Mehena
Irekti, Amar
Hami, Brahim
Mots-clés: asphalt
formulation
performance
reclaimed asphalt pavement
recycling
Date de publication: 2019
Editeur: Gheorghe Asachi Technical University of Iasi, Romania
Collection/Numéro: Environmental Engineering and Management JournalVolume 18, Issue 12, 2019;pp. 2613-2621
Résumé: The maintenance of flexible roads or roads at end of life service generates high quantities of reclaimed asphalt pavement every year. The reuse of these materials, considered for a long time as waste, allows a substantial saving in transport, energy, and maintains dwindling natural resources. Recycling of asphalt also helps to reduce inert waste storage volumes, and conserve valuable landfill space. The applicability of recycled asphalt was tested in laboratory, and asphalt mixtures containing 20%, 40% and 50% of reclaimed asphalt pavement (RAP) were designed. Marshall and Duriez tests have been performed on various formulations using paving grade bitumen and modified bitumen as binders, the latter contains a quantity of Styrene /Butadiene / Styrene (SBS) polymer. This investigation led to the conclusion that the performance of recycled asphalt mixture containing 20% of RAP is significantly closer to those obtained with virgin asphalt mixture without recycled materials. In addition, the use of SBS polymer improves the properties of recycled asphalt mixtures even with high amounts of reclaimed asphalt pavement.
URI/URL: http://www.eemj.eu/index.php/EEMJ/article/view/4012
http://dlibrary.univ-boumerdes.dz:8080/handle/123456789/6099
ISSN: 15829596
Collection(s) :Publications Internationales

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