2018
DOI: 10.1590/s1517-707620180003.0523
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Avaliação química e ambiental de misturas asfálticas rejuvenescidas

Abstract: RESUMO A reciclagem é um tema que vem ganhando bastante espaço em diversas áreas da engenharia. Quando se reaproveita um material em obras civis, indiretamente se está contribuindo para a preservação da natureza. Dentro deste contexto, a reciclagem de revestimentos asfálticos é um assunto que desperta grande interesse, mas que requer estudos mais aprofundados. Desta forma, o presente trabalho tem como objetivo estudar os efeitos de produtos rejuvenescedores no comportamento de ligante asfáltico envelhecido, vi… Show more

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Cited by 5 publications
(9 citation statements)
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“…Comparing the virgin binder with that extracted from RAP, it is possible to observe the variation in density, softening point and penetration values, evidencing the rigidity triggered by the aging process of the milled material. Similar results were observed by Silva and Farias (2018) for the same type of aged binder (CAP 50/70). Other important data obtained during the characterization was the relation between viscosity and temperature, which pointed to the maximum mixing and compaction temperatures values: 155°C and 140°C, respectively.…”
Section: Rapsupporting
confidence: 86%
See 1 more Smart Citation
“…Comparing the virgin binder with that extracted from RAP, it is possible to observe the variation in density, softening point and penetration values, evidencing the rigidity triggered by the aging process of the milled material. Similar results were observed by Silva and Farias (2018) for the same type of aged binder (CAP 50/70). Other important data obtained during the characterization was the relation between viscosity and temperature, which pointed to the maximum mixing and compaction temperatures values: 155°C and 140°C, respectively.…”
Section: Rapsupporting
confidence: 86%
“…Other important data obtained during the characterization was the relation between viscosity and temperature, which pointed to the maximum mixing and compaction temperatures values: 155°C and 140°C, respectively. The shale oil-based rejuvenating agent is the same as that used by Silva and Farias (2018), Oliveira (2020) and Cabral (2021), and was supplied by a national company that distributes oil derivatives. This was then incorporated into the RAP, in order to guarantee the chemical rebalancing of the aged binder, making it an appropriate binder for pavement use.…”
Section: Rapmentioning
confidence: 99%
“…Esta di-iculdade é relatada por alguns autores como Shakirullah et. al (2006), Jennings & Pribani (1991) e Silva & Farias (2018), 1H e 13C dos ligantes asfálticos que se apresentam como uma mistura complexa de compostos orgânicos. Esta técnica foi utilizada para avaliação das alterações estruturais que a mistura de rejuvenescedores poderia ocasionar no ligante envelhecido que havia sido extraıdo do material fresado.…”
Section: Espectrometria De Ressonância Magné$ca Nuclear -Rmnunclassified
“…O vocábulo significa aquilo que é reto, que não se desvia, que segue uma só direção. Assim, por direito entende-se tudo aquilo que é de acordo com a justiça, a razão e a equidade (SILVA, 1999).…”
Section: A Relação Entre Moral Direito E Liberdadeunclassified