Internal structure of laboratory compacted warm mix asphalt

Warm mix asphalt (WMA) are asphalt mixtures fabricated at lower temperatures (i.e., 20 C to 50 C) than conventional hot mix asphalt (HMA). Therefore, as compared to HMA, WMA offer several engineering, economical, and environmental advantages. However, research is still required to identify the respo...

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Detalles Bibliográficos
Autores: Alvarez Lugo, Allex Eduardo, Carvajal Muñoz, Juan Sebastian, Reyes Ortiz, Oscar Javier
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2012
País:Colombia
Institución:Universidad Nacional de Colombia
Repositorio:Repositorio UN
Idioma:español
OAI Identifier:oai:repositorio.unal.edu.co:unal/33408
Acceso en línea:https://repositorio.unal.edu.co/handle/unal/33408
http://bdigital.unal.edu.co/23488/
Access Level:acceso abierto
Palabra clave:Warm mix asphalt
hot mix asphalt
mixture internal structure
air voids
X-ray Computed Tomography
pavement structure
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spelling Internal structure of laboratory compacted warm mix asphaltAlvarez Lugo, Allex EduardoCarvajal Muñoz, Juan SebastianReyes Ortiz, Oscar JavierWarm mix asphalthot mix asphaltmixture internal structureair voidsX-ray Computed Tomographypavement structureWarm mix asphalt (WMA) are asphalt mixtures fabricated at lower temperatures (i.e., 20 C to 50 C) than conventional hot mix asphalt (HMA). Therefore, as compared to HMA, WMA offer several engineering, economical, and environmental advantages. However, research is still required to identify the response, properties, and performance of WMA, since they still constitute a relatively new technology. This paper focuses on the analysis of the internal structure of WMA specimens compacted using both the Superpave Gyratory Compactor (SGC) and the Texas Gyratory Compactor (TxGC). This analysis was conducted in terms of the air voids (AV) characteristics assessed by applying X-ray Computed Tomography and image analysis techniques. The results obtained suggest that the addition of WMA additives and corresponding reduction of the compaction temperature for SGC specimens did not lead to significant changes in the vertical distribution of total AV content as compared to that of the control-HMA. However, some differences were reported in terms of the AV size, which suggests the existence of discrepancies in the aggregate packing condition. Therefore, additional research is suggested to fully validate the equivalence of the internal structure of both WMA and HMA.Universidad Nacional de Colombia Sede Medellín2019-06-27T22:56:50Z2019-06-27T22:56:50Z2012Artículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTapplication/pdfapplication/pdftext/htmlhttps://repositorio.unal.edu.co/handle/unal/33408http://bdigital.unal.edu.co/23488/spahttp://revistas.unal.edu.co/index.php/dyna/article/view/20411Universidad Nacional de Colombia Revistas electrónicas UN DynaDynaDyna; Vol. 79, núm. 172 (2012); 38-45 DYNA; Vol. 79, núm. 172 (2012); 38-45 2346-2183 0012-7353Alvarez Lugo, Allex Eduardo and Carvajal Muñoz, Juan Sebastian and Reyes Ortiz, Oscar Javier (2012) Internal structure of laboratory compacted warm mix asphalt. Dyna; Vol. 79, núm. 172 (2012); 38-45 DYNA; Vol. 79, núm. 172 (2012); 38-45 2346-2183 0012-7353 .Derechos reservados - Universidad Nacional de ColombiaAtribución-NoComercial 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessreponame:Repositorio UNinstname:Universidad Nacional de Colombiainstacron:Universidad Nacional de Colombia2022-12-27T04:04:19Z
dc.title.none.fl_str_mv Internal structure of laboratory compacted warm mix asphalt
title Internal structure of laboratory compacted warm mix asphalt
spellingShingle Internal structure of laboratory compacted warm mix asphalt
Alvarez Lugo, Allex Eduardo
Warm mix asphalt
hot mix asphalt
mixture internal structure
air voids
X-ray Computed Tomography
pavement structure
title_short Internal structure of laboratory compacted warm mix asphalt
title_full Internal structure of laboratory compacted warm mix asphalt
title_fullStr Internal structure of laboratory compacted warm mix asphalt
title_full_unstemmed Internal structure of laboratory compacted warm mix asphalt
title_sort Internal structure of laboratory compacted warm mix asphalt
dc.creator.none.fl_str_mv Alvarez Lugo, Allex Eduardo
Carvajal Muñoz, Juan Sebastian
Reyes Ortiz, Oscar Javier
author Alvarez Lugo, Allex Eduardo
author_facet Alvarez Lugo, Allex Eduardo
Carvajal Muñoz, Juan Sebastian
Reyes Ortiz, Oscar Javier
author_role author
author2 Carvajal Muñoz, Juan Sebastian
Reyes Ortiz, Oscar Javier
author2_role author
author
dc.subject.none.fl_str_mv Warm mix asphalt
hot mix asphalt
mixture internal structure
air voids
X-ray Computed Tomography
pavement structure
topic Warm mix asphalt
hot mix asphalt
mixture internal structure
air voids
X-ray Computed Tomography
pavement structure
description Warm mix asphalt (WMA) are asphalt mixtures fabricated at lower temperatures (i.e., 20 C to 50 C) than conventional hot mix asphalt (HMA). Therefore, as compared to HMA, WMA offer several engineering, economical, and environmental advantages. However, research is still required to identify the response, properties, and performance of WMA, since they still constitute a relatively new technology. This paper focuses on the analysis of the internal structure of WMA specimens compacted using both the Superpave Gyratory Compactor (SGC) and the Texas Gyratory Compactor (TxGC). This analysis was conducted in terms of the air voids (AV) characteristics assessed by applying X-ray Computed Tomography and image analysis techniques. The results obtained suggest that the addition of WMA additives and corresponding reduction of the compaction temperature for SGC specimens did not lead to significant changes in the vertical distribution of total AV content as compared to that of the control-HMA. However, some differences were reported in terms of the AV size, which suggests the existence of discrepancies in the aggregate packing condition. Therefore, additional research is suggested to fully validate the equivalence of the internal structure of both WMA and HMA.
publishDate 2012
dc.date.none.fl_str_mv 2012
2019-06-27T22:56:50Z
2019-06-27T22:56:50Z
dc.type.none.fl_str_mv Artículo de revista
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
http://purl.org/coar/version/c_970fb48d4fbd8a85
Text
http://purl.org/redcol/resource_type/ART
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://repositorio.unal.edu.co/handle/unal/33408
http://bdigital.unal.edu.co/23488/
url https://repositorio.unal.edu.co/handle/unal/33408
http://bdigital.unal.edu.co/23488/
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv http://revistas.unal.edu.co/index.php/dyna/article/view/20411
Universidad Nacional de Colombia Revistas electrónicas UN Dyna
Dyna
Dyna; Vol. 79, núm. 172 (2012); 38-45 DYNA; Vol. 79, núm. 172 (2012); 38-45 2346-2183 0012-7353
Alvarez Lugo, Allex Eduardo and Carvajal Muñoz, Juan Sebastian and Reyes Ortiz, Oscar Javier (2012) Internal structure of laboratory compacted warm mix asphalt. Dyna; Vol. 79, núm. 172 (2012); 38-45 DYNA; Vol. 79, núm. 172 (2012); 38-45 2346-2183 0012-7353 .
dc.rights.none.fl_str_mv Derechos reservados - Universidad Nacional de Colombia
Atribución-NoComercial 4.0 Internacional
http://creativecommons.org/licenses/by-nc/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Derechos reservados - Universidad Nacional de Colombia
Atribución-NoComercial 4.0 Internacional
http://creativecommons.org/licenses/by-nc/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
text/html
dc.publisher.none.fl_str_mv Universidad Nacional de Colombia Sede Medellín
publisher.none.fl_str_mv Universidad Nacional de Colombia Sede Medellín
dc.source.none.fl_str_mv reponame:Repositorio UN
instname:Universidad Nacional de Colombia
instacron:Universidad Nacional de Colombia
instname_str Universidad Nacional de Colombia
instacron_str Universidad Nacional de Colombia
institution Universidad Nacional de Colombia
reponame_str Repositorio UN
collection Repositorio UN
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