Characterization and thermal behavior of polymer-modified asphalt

Detalhes bibliográficos
Autor(a) principal: Lucena,Maria da Conceição Cavalcante
Data de Publicação: 2004
Outros Autores: Soares,Sandra de Aguiar, Soares,Jorge Barbosa
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000400004
Resumo: A styrene-butadiene-styrene modified asphalt cement was characterized by infrared, differential scanning calorimetry, thermogravimetric analysis and empirical tests such as ring and ball softening point, penetration and elastic recovery. After aging in the rolling thin-film oven, the polymer-modified asphalt presented structural changes relating to oxidation of the material. The infrared spectra showed an increase in hydroxyl groups and the formation of carbonyl compounds and sulphoxides. The percentage of crystallized fraction calculated from differential scanning calorimetry was 0.41%. Thermogravimetric analyses in inert and oxidative atmospheres revealed distinct events during thermal decomposition; the initial activation energies were similar, but changed as the process evolved.
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spelling Characterization and thermal behavior of polymer-modified asphaltmodified asphalt characterizationSBS copolymerthermal degradationA styrene-butadiene-styrene modified asphalt cement was characterized by infrared, differential scanning calorimetry, thermogravimetric analysis and empirical tests such as ring and ball softening point, penetration and elastic recovery. After aging in the rolling thin-film oven, the polymer-modified asphalt presented structural changes relating to oxidation of the material. The infrared spectra showed an increase in hydroxyl groups and the formation of carbonyl compounds and sulphoxides. The percentage of crystallized fraction calculated from differential scanning calorimetry was 0.41%. Thermogravimetric analyses in inert and oxidative atmospheres revealed distinct events during thermal decomposition; the initial activation energies were similar, but changed as the process evolved.ABM, ABC, ABPol2004-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000400004Materials Research v.7 n.4 2004reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392004000400004info:eu-repo/semantics/openAccessLucena,Maria da Conceição CavalcanteSoares,Sandra de AguiarSoares,Jorge Barbosaeng2005-11-08T00:00:00Zoai:scielo:S1516-14392004000400004Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2005-11-08T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Characterization and thermal behavior of polymer-modified asphalt
title Characterization and thermal behavior of polymer-modified asphalt
spellingShingle Characterization and thermal behavior of polymer-modified asphalt
Lucena,Maria da Conceição Cavalcante
modified asphalt characterization
SBS copolymer
thermal degradation
title_short Characterization and thermal behavior of polymer-modified asphalt
title_full Characterization and thermal behavior of polymer-modified asphalt
title_fullStr Characterization and thermal behavior of polymer-modified asphalt
title_full_unstemmed Characterization and thermal behavior of polymer-modified asphalt
title_sort Characterization and thermal behavior of polymer-modified asphalt
author Lucena,Maria da Conceição Cavalcante
author_facet Lucena,Maria da Conceição Cavalcante
Soares,Sandra de Aguiar
Soares,Jorge Barbosa
author_role author
author2 Soares,Sandra de Aguiar
Soares,Jorge Barbosa
author2_role author
author
dc.contributor.author.fl_str_mv Lucena,Maria da Conceição Cavalcante
Soares,Sandra de Aguiar
Soares,Jorge Barbosa
dc.subject.por.fl_str_mv modified asphalt characterization
SBS copolymer
thermal degradation
topic modified asphalt characterization
SBS copolymer
thermal degradation
description A styrene-butadiene-styrene modified asphalt cement was characterized by infrared, differential scanning calorimetry, thermogravimetric analysis and empirical tests such as ring and ball softening point, penetration and elastic recovery. After aging in the rolling thin-film oven, the polymer-modified asphalt presented structural changes relating to oxidation of the material. The infrared spectra showed an increase in hydroxyl groups and the formation of carbonyl compounds and sulphoxides. The percentage of crystallized fraction calculated from differential scanning calorimetry was 0.41%. Thermogravimetric analyses in inert and oxidative atmospheres revealed distinct events during thermal decomposition; the initial activation energies were similar, but changed as the process evolved.
publishDate 2004
dc.date.none.fl_str_mv 2004-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000400004
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000400004
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392004000400004
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.7 n.4 2004
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
_version_ 1754212657760567296

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