Use este identificador para citar ou linkar para este item: http://repositorio.ufc.br/handle/riufc/69557
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dc.contributor.authorBringel, Raquel Moraes-
dc.contributor.authorAlencar, Ana Ellen Valentim de-
dc.contributor.authorSoares, Jorge Barbosa-
dc.contributor.authorSoares, Sandra de Aguiar-
dc.contributor.authorNascimento, Daniel Rodrigues do-
dc.contributor.authorCosta, Erivelton Façanha da-
dc.date.accessioned2022-11-25T16:17:07Z-
dc.date.available2022-11-25T16:17:07Z-
dc.date.issued2008-
dc.identifier.citationSOARES, J. B. et al. Thermo-rheological behavior of modified bitumens adding virgin and waste polymers. In: EUROASPHALT AND EUROBITUME CONGRESS, 4., 2008, Copenhagen. Anais... Copenhagen, 2008. p. 1-7.pt_BR
dc.identifier.urihttp://www.repositorio.ufc.br/handle/riufc/69557-
dc.language.isoenpt_BR
dc.publisherEuroasphalt and Eurobitume Congresspt_BR
dc.subjectRheologypt_BR
dc.subjectModified binderspt_BR
dc.subjectWaste polymerspt_BR
dc.subjectCNSL additivept_BR
dc.titleThermo-rheological behavior of modified bitumens adding virgin and waste polymerspt_BR
dc.typeArtigo de Eventopt_BR
dc.description.abstract-ptbrThe use of recycled polymers for replacing virgin polymers has been employed in the road building contributing to asphalt performance and lower environmental pollution. In this work the copolymers ethylene vinyl acetate (EVA) and a recycled EVA copolymer from industry (EVAR) were used as modifying agents of the Brazilian bitumen. Other additive as a cashew nut shell liquid (CNSL) was also added in order to evaluate its use as bitumen modifiers. The rheological properties of the modified binders were analyzed by means of dynamic shear rheometer (DSR) and accelerated ageing experiment (RTFOT). Differently to the original the modified binders showed non-Newtonian behavior. The results obtained reveal that EVAR can be considered as an interesting substitute of EVA not only as a mean of effecting improvement but also from an economic and environmental point of view. The use of the original EVA and EVAR waste polymers helped to improve the aging resistance. The rutting factor (G*/sin δ) suggest that the polymers and waste can improve the elasticity of the asphalt. The activation energy of the viscous flux (Ef) for the samples oscillated between 58 and 70 KJ/mo land showed that the additive CNSL can reduce the viscosity and thermal susceptibility of the modified binder.pt_BR
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