Storage Stability of Bimodal Emulsions vs. Monomodal Emulsions

Storage stability is a very important parameter that has to be considered in the formulation of asphalt emulsions. When monomodal emulsions are formulated, Stokes' law is fulfilled, therefore the higher the viscosity the less sedimentation, or the lower average droplet size the less sedimentati...

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Autores: Querol Solà, Núria, Barreneche Güerisoli, Camila, Cabeza, Luisa F.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2017
País:España
Institución:Universitat de Lleida (UdL)
Repositorio:Repositori Obert UdL
OAI Identifier:oai:repositori.udl.cat:10459.1/60625
Acceso en línea:https://doi.org/10.3390/app7121267
http://hdl.handle.net/10459.1/60625
Access Level:acceso abierto
Palabra clave:Bimodal emulsions
Storage stability
Bimodal viscosity values
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spelling Storage Stability of Bimodal Emulsions vs. Monomodal EmulsionsQuerol Solà, NúriaBarreneche Güerisoli, CamilaCabeza, Luisa F.Bimodal emulsionsStorage stabilityBimodal viscosity valuesStorage stability is a very important parameter that has to be considered in the formulation of asphalt emulsions. When monomodal emulsions are formulated, Stokes' law is fulfilled, therefore the higher the viscosity the less sedimentation, or the lower average droplet size the less sedimentation. But when bimodal emulsions are formulated, this rule does not apply. In this paper, two types of different emulsions are formulated: monomodal emulsions and bimodal emulsions. Bimodal emulsions are a combination of one large bitumen size and a small one. For this study, hard penetration bitumens were used, B35/50 and B15/25, because they are the most difficult bitumen to emulsify and, consequently, the worst sedimentation values are expected. Once the emulsions are manufactured, they are diluted to a bitumen rate concentration of 60% and 70%. Results show that bimodal emulsions, although having lower viscosity than their monomodal counterparts, have higher storage stability.The authors would like to thank the Catalan Government for the quality accreditation given to their research group GREA (2014 SGR 123). GREA is certified agent TECNIO in the category of technology developers from the Government of Catalonia. Camila Barreneche would like to thank Ministerio de Economia y Competitividad de España for Grant Juan de la Cierva, FJCI-2014-22886 and Núria Querol would like to specially thank Sorigue Company for giving her the opportunity to develop this study using its manufacture production plant equipped with the most advanced technology to develop this kind of emulsions.MDPI2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://doi.org/10.3390/app7121267http://hdl.handle.net/10459.1/60625reponame:Repositori Obert UdL instname:Universitat de Lleida (UdL)InglésReproducció del document publicat a https://doi.org/10.3390/app7121267Applied Sciences, 2017, vol. 7, núm. 12, p. 1267 (15 pp.)cc-by (c) Núria Querol et al., 2017info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/oai:repositori.udl.cat:10459.1/606252026-06-24T12:42:17Z
dc.title.none.fl_str_mv Storage Stability of Bimodal Emulsions vs. Monomodal Emulsions
title Storage Stability of Bimodal Emulsions vs. Monomodal Emulsions
spellingShingle Storage Stability of Bimodal Emulsions vs. Monomodal Emulsions
Querol Solà, Núria
Bimodal emulsions
Storage stability
Bimodal viscosity values
title_short Storage Stability of Bimodal Emulsions vs. Monomodal Emulsions
title_full Storage Stability of Bimodal Emulsions vs. Monomodal Emulsions
title_fullStr Storage Stability of Bimodal Emulsions vs. Monomodal Emulsions
title_full_unstemmed Storage Stability of Bimodal Emulsions vs. Monomodal Emulsions
title_sort Storage Stability of Bimodal Emulsions vs. Monomodal Emulsions
dc.creator.none.fl_str_mv Querol Solà, Núria
Barreneche Güerisoli, Camila
Cabeza, Luisa F.
author Querol Solà, Núria
author_facet Querol Solà, Núria
Barreneche Güerisoli, Camila
Cabeza, Luisa F.
author_role author
author2 Barreneche Güerisoli, Camila
Cabeza, Luisa F.
author2_role author
author
dc.subject.none.fl_str_mv Bimodal emulsions
Storage stability
Bimodal viscosity values
topic Bimodal emulsions
Storage stability
Bimodal viscosity values
description Storage stability is a very important parameter that has to be considered in the formulation of asphalt emulsions. When monomodal emulsions are formulated, Stokes' law is fulfilled, therefore the higher the viscosity the less sedimentation, or the lower average droplet size the less sedimentation. But when bimodal emulsions are formulated, this rule does not apply. In this paper, two types of different emulsions are formulated: monomodal emulsions and bimodal emulsions. Bimodal emulsions are a combination of one large bitumen size and a small one. For this study, hard penetration bitumens were used, B35/50 and B15/25, because they are the most difficult bitumen to emulsify and, consequently, the worst sedimentation values are expected. Once the emulsions are manufactured, they are diluted to a bitumen rate concentration of 60% and 70%. Results show that bimodal emulsions, although having lower viscosity than their monomodal counterparts, have higher storage stability.
publishDate 2017
dc.date.none.fl_str_mv 2017
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.3390/app7121267
http://hdl.handle.net/10459.1/60625
url https://doi.org/10.3390/app7121267
http://hdl.handle.net/10459.1/60625
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a https://doi.org/10.3390/app7121267
Applied Sciences, 2017, vol. 7, núm. 12, p. 1267 (15 pp.)
dc.rights.none.fl_str_mv cc-by (c) Núria Querol et al., 2017
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
rights_invalid_str_mv cc-by (c) Núria Querol et al., 2017
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Repositori Obert UdL
instname:Universitat de Lleida (UdL)
instname_str Universitat de Lleida (UdL)
reponame_str Repositori Obert UdL
collection Repositori Obert UdL
repository.name.fl_str_mv
repository.mail.fl_str_mv
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