Analysis of connected air voids in warm mix asphalt
Warm mix asphalt (WMA) are asphalt mixtures produced at reduced temperatures as compared to conventional hot mix asphalt (HMA). Temperature reductions in the order of 10 to 50 C are possible through the incorporation of diverse WMA type additives. However, different aspects, including the mixture i...
- Autores:
-
Alvarez Lugo, Allex Eduardo
Macias Garcia, Nelkin Andres
Fuentes Pumarejo, Luis Guillermo
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2012
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/35137
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/35137
http://bdigital.unal.edu.co/25217/
- Palabra clave:
- Warm mix asphalt
Connected air voids
X-ray Computed Tomography
Internal structure
Hot mix asphalt
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
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Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Alvarez Lugo, Allex Eduardo0e2b5e85-6ff2-412b-96f7-2b194527b612300Macias Garcia, Nelkin Andresba5ef0b5-39ce-4b56-87a4-89115d9dcfaa300Fuentes Pumarejo, Luis Guillermo0d928c7f-6f8b-4c95-a8e8-0b289a0a69053002019-06-27T23:57:48Z2019-06-27T23:57:48Z2012https://repositorio.unal.edu.co/handle/unal/35137http://bdigital.unal.edu.co/25217/Warm mix asphalt (WMA) are asphalt mixtures produced at reduced temperatures as compared to conventional hot mix asphalt (HMA). Temperature reductions in the order of 10 to 50 C are possible through the incorporation of diverse WMA type additives. However, different aspects, including the mixture internal structure of WMA, are still object of research. Consequently, this paper focused on the assessment of the internal structure of WMA (computed in terms of the Connected Air Voids (CAV) characteristics), fabricated using three WMA additives: Asphamin®, Sasobit®, and Evotherm®. The CAV content corresponds to the fraction of Air Voids (AV) forming connected paths in a compacted specimen and is better related to the asphalt mixture response (e.g., permeability) than the total AV content. The CAV analysis was based on X-ray Computed Tomography scanning and subsequent image analysis. Corresponding results suggested the need of additional research to further characterize field compacted mixtures, produced at densification levels comparable to those achieved in the laboratory. In addition, the inclusion of WMA additives and corresponding temperature reductions did not substantially affect the internal structure of gyratory-compacted specimens (115 mm in height) produced for laboratory mixture evaluation.application/pdfspaUniversidad Nacional de Colombia Sede Medellínhttp://revistas.unal.edu.co/index.php/dyna/article/view/22522Universidad Nacional de Colombia Revistas electrónicas UN DynaDynaDyna; Vol. 79, núm. 172 (2012); 29-37 DYNA; Vol. 79, núm. 172 (2012); 29-37 2346-2183 0012-7353Alvarez Lugo, Allex Eduardo and Macias Garcia, Nelkin Andres and Fuentes Pumarejo, Luis Guillermo (2012) Analysis of connected air voids in warm mix asphalt. Dyna; Vol. 79, núm. 172 (2012); 29-37 DYNA; Vol. 79, núm. 172 (2012); 29-37 2346-2183 0012-7353 .Analysis of connected air voids in warm mix asphaltArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTWarm mix asphaltConnected air voidsX-ray Computed TomographyInternal structureHot mix asphaltORIGINAL22522-157482-1-PB.htmltext/html41153https://repositorio.unal.edu.co/bitstream/unal/35137/1/22522-157482-1-PB.html6bc9d67d20b4ec94c22fcc3adbf58a80MD5122522-106530-1-PB.pdfapplication/pdf2040864https://repositorio.unal.edu.co/bitstream/unal/35137/2/22522-106530-1-PB.pdff3ab954a1e4fcba3eb72465e7fa4c686MD52THUMBNAIL22522-106530-1-PB.pdf.jpg22522-106530-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg8919https://repositorio.unal.edu.co/bitstream/unal/35137/3/22522-106530-1-PB.pdf.jpg17a3cc0254c4e12214b5e6cc2db617fbMD53unal/35137oai:repositorio.unal.edu.co:unal/351372023-12-30 23:05:38.496Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co |
dc.title.spa.fl_str_mv |
Analysis of connected air voids in warm mix asphalt |
title |
Analysis of connected air voids in warm mix asphalt |
spellingShingle |
Analysis of connected air voids in warm mix asphalt Warm mix asphalt Connected air voids X-ray Computed Tomography Internal structure Hot mix asphalt |
title_short |
Analysis of connected air voids in warm mix asphalt |
title_full |
Analysis of connected air voids in warm mix asphalt |
title_fullStr |
Analysis of connected air voids in warm mix asphalt |
title_full_unstemmed |
Analysis of connected air voids in warm mix asphalt |
title_sort |
Analysis of connected air voids in warm mix asphalt |
dc.creator.fl_str_mv |
Alvarez Lugo, Allex Eduardo Macias Garcia, Nelkin Andres Fuentes Pumarejo, Luis Guillermo |
dc.contributor.author.spa.fl_str_mv |
Alvarez Lugo, Allex Eduardo Macias Garcia, Nelkin Andres Fuentes Pumarejo, Luis Guillermo |
dc.subject.proposal.spa.fl_str_mv |
Warm mix asphalt Connected air voids X-ray Computed Tomography Internal structure Hot mix asphalt |
topic |
Warm mix asphalt Connected air voids X-ray Computed Tomography Internal structure Hot mix asphalt |
description |
Warm mix asphalt (WMA) are asphalt mixtures produced at reduced temperatures as compared to conventional hot mix asphalt (HMA). Temperature reductions in the order of 10 to 50 C are possible through the incorporation of diverse WMA type additives. However, different aspects, including the mixture internal structure of WMA, are still object of research. Consequently, this paper focused on the assessment of the internal structure of WMA (computed in terms of the Connected Air Voids (CAV) characteristics), fabricated using three WMA additives: Asphamin®, Sasobit®, and Evotherm®. The CAV content corresponds to the fraction of Air Voids (AV) forming connected paths in a compacted specimen and is better related to the asphalt mixture response (e.g., permeability) than the total AV content. The CAV analysis was based on X-ray Computed Tomography scanning and subsequent image analysis. Corresponding results suggested the need of additional research to further characterize field compacted mixtures, produced at densification levels comparable to those achieved in the laboratory. In addition, the inclusion of WMA additives and corresponding temperature reductions did not substantially affect the internal structure of gyratory-compacted specimens (115 mm in height) produced for laboratory mixture evaluation. |
publishDate |
2012 |
dc.date.issued.spa.fl_str_mv |
2012 |
dc.date.accessioned.spa.fl_str_mv |
2019-06-27T23:57:48Z |
dc.date.available.spa.fl_str_mv |
2019-06-27T23:57:48Z |
dc.type.spa.fl_str_mv |
Artículo de revista |
dc.type.coar.fl_str_mv |
http://purl.org/coar/resource_type/c_2df8fbb1 |
dc.type.driver.spa.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.version.spa.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.coar.spa.fl_str_mv |
http://purl.org/coar/resource_type/c_6501 |
dc.type.coarversion.spa.fl_str_mv |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
dc.type.content.spa.fl_str_mv |
Text |
dc.type.redcol.spa.fl_str_mv |
http://purl.org/redcol/resource_type/ART |
format |
http://purl.org/coar/resource_type/c_6501 |
status_str |
publishedVersion |
dc.identifier.uri.none.fl_str_mv |
https://repositorio.unal.edu.co/handle/unal/35137 |
dc.identifier.eprints.spa.fl_str_mv |
http://bdigital.unal.edu.co/25217/ |
url |
https://repositorio.unal.edu.co/handle/unal/35137 http://bdigital.unal.edu.co/25217/ |
dc.language.iso.spa.fl_str_mv |
spa |
language |
spa |
dc.relation.spa.fl_str_mv |
http://revistas.unal.edu.co/index.php/dyna/article/view/22522 |
dc.relation.ispartof.spa.fl_str_mv |
Universidad Nacional de Colombia Revistas electrónicas UN Dyna Dyna |
dc.relation.ispartofseries.none.fl_str_mv |
Dyna; Vol. 79, núm. 172 (2012); 29-37 DYNA; Vol. 79, núm. 172 (2012); 29-37 2346-2183 0012-7353 |
dc.relation.references.spa.fl_str_mv |
Alvarez Lugo, Allex Eduardo and Macias Garcia, Nelkin Andres and Fuentes Pumarejo, Luis Guillermo (2012) Analysis of connected air voids in warm mix asphalt. Dyna; Vol. 79, núm. 172 (2012); 29-37 DYNA; Vol. 79, núm. 172 (2012); 29-37 2346-2183 0012-7353 . |
dc.rights.spa.fl_str_mv |
Derechos reservados - Universidad Nacional de Colombia |
dc.rights.coar.fl_str_mv |
http://purl.org/coar/access_right/c_abf2 |
dc.rights.license.spa.fl_str_mv |
Atribución-NoComercial 4.0 Internacional |
dc.rights.uri.spa.fl_str_mv |
http://creativecommons.org/licenses/by-nc/4.0/ |
dc.rights.accessrights.spa.fl_str_mv |
info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Atribución-NoComercial 4.0 Internacional Derechos reservados - Universidad Nacional de Colombia http://creativecommons.org/licenses/by-nc/4.0/ http://purl.org/coar/access_right/c_abf2 |
eu_rights_str_mv |
openAccess |
dc.format.mimetype.spa.fl_str_mv |
application/pdf |
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Universidad Nacional de Colombia Sede Medellín |
institution |
Universidad Nacional de Colombia |
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