Effect of gypsum content in sprayed cementitious matrices: early age hydration and mechanical properties

Sprayed materials must present short setting times and a fast early strength development for safety and productivity reasons. In order to improve these characteristics, the construction industry has focused on the development of new formulations of accelerators. Research and improvement of other com...

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Autores: Herrera Messen, Carlos, Salvador, Renan Pícolo, Pialarissi Cavalaro, Sergio Henrique|||0000-0002-9368-0898, Aguado de Cea, Antonio|||0000-0001-5542-6365
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/125109
Acceso en línea:https://hdl.handle.net/2117/125109
https://dx.doi.org/10.1016/j.cemconcomp.2018.10.015
Access Level:acceso abierto
Palabra clave:Shotcrete--Materials
Sprayed materials Sulfate balance Accelerators Hydration Mechanical strength
Formigó gunitat
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
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spelling Effect of gypsum content in sprayed cementitious matrices: early age hydration and mechanical propertiesHerrera Messen, CarlosSalvador, Renan PícoloPialarissi Cavalaro, Sergio Henrique|||0000-0002-9368-0898Aguado de Cea, Antonio|||0000-0001-5542-6365Shotcrete--MaterialsSprayed materials Sulfate balance Accelerators Hydration Mechanical strengthFormigó gunitatÀrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigóSprayed materials must present short setting times and a fast early strength development for safety and productivity reasons. In order to improve these characteristics, the construction industry has focused on the development of new formulations of accelerators. Research and improvement of other components of the mix, such as cement or additions, have not advanced at the same rate despite being also crucial for the reaction kinetics. The objective of this work is to evaluate the influence of gypsum content on the hydration and mechanical strength development in sprayed mixes. Sprayed pastes and mortars were prepared with one type of cement, two types of accelerators and different gypsum contents. Kinetics, mechanisms of hydration and mechanical properties were evaluated. Results showed a better performance in sprayed mixes that contain ideal doses of gypsum. Such approach provides valuable information for the improvement of the formulation of cement used in sprayed concrete applications.Peer Reviewed20192019-01-0120182018-11-26journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/125109https://dx.doi.org/10.1016/j.cemconcomp.2018.10.015reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1251092026-05-27T15:37:01Z
dc.title.none.fl_str_mv Effect of gypsum content in sprayed cementitious matrices: early age hydration and mechanical properties
title Effect of gypsum content in sprayed cementitious matrices: early age hydration and mechanical properties
spellingShingle Effect of gypsum content in sprayed cementitious matrices: early age hydration and mechanical properties
Herrera Messen, Carlos
Shotcrete--Materials
Sprayed materials Sulfate balance Accelerators Hydration Mechanical strength
Formigó gunitat
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
title_short Effect of gypsum content in sprayed cementitious matrices: early age hydration and mechanical properties
title_full Effect of gypsum content in sprayed cementitious matrices: early age hydration and mechanical properties
title_fullStr Effect of gypsum content in sprayed cementitious matrices: early age hydration and mechanical properties
title_full_unstemmed Effect of gypsum content in sprayed cementitious matrices: early age hydration and mechanical properties
title_sort Effect of gypsum content in sprayed cementitious matrices: early age hydration and mechanical properties
dc.creator.none.fl_str_mv Herrera Messen, Carlos
Salvador, Renan Pícolo
Pialarissi Cavalaro, Sergio Henrique|||0000-0002-9368-0898
Aguado de Cea, Antonio|||0000-0001-5542-6365
author Herrera Messen, Carlos
author_facet Herrera Messen, Carlos
Salvador, Renan Pícolo
Pialarissi Cavalaro, Sergio Henrique|||0000-0002-9368-0898
Aguado de Cea, Antonio|||0000-0001-5542-6365
author_role author
author2 Salvador, Renan Pícolo
Pialarissi Cavalaro, Sergio Henrique|||0000-0002-9368-0898
Aguado de Cea, Antonio|||0000-0001-5542-6365
author2_role author
author
author
dc.subject.none.fl_str_mv Shotcrete--Materials
Sprayed materials Sulfate balance Accelerators Hydration Mechanical strength
Formigó gunitat
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
topic Shotcrete--Materials
Sprayed materials Sulfate balance Accelerators Hydration Mechanical strength
Formigó gunitat
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
description Sprayed materials must present short setting times and a fast early strength development for safety and productivity reasons. In order to improve these characteristics, the construction industry has focused on the development of new formulations of accelerators. Research and improvement of other components of the mix, such as cement or additions, have not advanced at the same rate despite being also crucial for the reaction kinetics. The objective of this work is to evaluate the influence of gypsum content on the hydration and mechanical strength development in sprayed mixes. Sprayed pastes and mortars were prepared with one type of cement, two types of accelerators and different gypsum contents. Kinetics, mechanisms of hydration and mechanical properties were evaluated. Results showed a better performance in sprayed mixes that contain ideal doses of gypsum. Such approach provides valuable information for the improvement of the formulation of cement used in sprayed concrete applications.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018-11-26
2019
2019-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/125109
https://dx.doi.org/10.1016/j.cemconcomp.2018.10.015
url https://hdl.handle.net/2117/125109
https://dx.doi.org/10.1016/j.cemconcomp.2018.10.015
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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