A novel use of calcium aluminate cements for recycling waste foundry sand (WFS)

The recycling of WFS in calcium aluminate cement mortars at high level of replacement (50%) was studied. Consistency and setting time were measured in fresh mortars. Two different curing conditions were used, the second one with the aim of enhancing the formation of stable cubic calcium aluminate hy...

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Autores: Navarro-Blasco, I. (Iñigo)|||/items/733b109b-1074-49e9-8952-70ec6928cc54, Fernandez-Alvarez, J.M. (José María)|||/items/1dea5bde-978e-46db-8871-8d426cbb52c8, Duran-Benito, A. (Adrian)|||/items/7059fa82-fd72-4355-8d76-0fd12a2e4d1d, Sirera-Bejarano, R. (Rafael)|||/items/dd5ea901-439c-4cbe-9798-b1ad5efb610d, Alvarez-Galindo, J.I. (José Ignacio)|||/items/c88ef755-513c-4ff3-bbff-44aadbf32204
Tipo de recurso: artículo
Fecha de publicación:2013
País:España
Institución:Universidad de Navarra
Repositorio:Dadun. Depósito Académico Digital de la Universidad de Navarra
Idioma:inglés
OAI Identifier:oai:dadun.unav.edu:10171/29527
Acceso en línea:https://hdl.handle.net/10171/29527
Access Level:acceso abierto
Palabra clave:Calcium aluminate cement
Leaching
Compressive strength
SEM
Toxic metals
Pore size distribution
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spelling A novel use of calcium aluminate cements for recycling waste foundry sand (WFS)Navarro-Blasco, I. (Iñigo)|||/items/733b109b-1074-49e9-8952-70ec6928cc54Fernandez-Alvarez, J.M. (José María)|||/items/1dea5bde-978e-46db-8871-8d426cbb52c8Duran-Benito, A. (Adrian)|||/items/7059fa82-fd72-4355-8d76-0fd12a2e4d1dSirera-Bejarano, R. (Rafael)|||/items/dd5ea901-439c-4cbe-9798-b1ad5efb610dAlvarez-Galindo, J.I. (José Ignacio)|||/items/c88ef755-513c-4ff3-bbff-44aadbf32204Calcium aluminate cementLeachingCompressive strengthSEMToxic metalsPore size distributionThe recycling of WFS in calcium aluminate cement mortars at high level of replacement (50%) was studied. Consistency and setting time were measured in fresh mortars. Two different curing conditions were used, the second one with the aim of enhancing the formation of stable cubic calcium aluminate hydrates. Compressive strength, pore size distribution and SEM examination were carried out to assess the effectiveness of CAC matrix in the recycling of WFS. The effect of the incorporation of a polymeric admixture – a chitosan derivative – was also explored. Leaching studies on hardened mortars of three target pollutants of the WFS (toxic metals Pb, Cr and Zn) were also done to evaluate their immobilization. By comparison with OPC mortars, the use of CAC showed several advantages, improving the compressive strength and the toxic metal retention.ElsevierDadun. Depósito Académico Digital Universidad de Navarra20132013-07-3020132013-11-0120132013-11-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10171/29527reponame:Dadun. Depósito Académico Digital de la Universidad de Navarrainstname:Universidad de NavarraInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:dadun.unav.edu:10171/295272026-06-21T12:47:57Z
dc.title.none.fl_str_mv A novel use of calcium aluminate cements for recycling waste foundry sand (WFS)
title A novel use of calcium aluminate cements for recycling waste foundry sand (WFS)
spellingShingle A novel use of calcium aluminate cements for recycling waste foundry sand (WFS)
Navarro-Blasco, I. (Iñigo)|||/items/733b109b-1074-49e9-8952-70ec6928cc54
Calcium aluminate cement
Leaching
Compressive strength
SEM
Toxic metals
Pore size distribution
title_short A novel use of calcium aluminate cements for recycling waste foundry sand (WFS)
title_full A novel use of calcium aluminate cements for recycling waste foundry sand (WFS)
title_fullStr A novel use of calcium aluminate cements for recycling waste foundry sand (WFS)
title_full_unstemmed A novel use of calcium aluminate cements for recycling waste foundry sand (WFS)
title_sort A novel use of calcium aluminate cements for recycling waste foundry sand (WFS)
dc.creator.none.fl_str_mv Navarro-Blasco, I. (Iñigo)|||/items/733b109b-1074-49e9-8952-70ec6928cc54
Fernandez-Alvarez, J.M. (José María)|||/items/1dea5bde-978e-46db-8871-8d426cbb52c8
Duran-Benito, A. (Adrian)|||/items/7059fa82-fd72-4355-8d76-0fd12a2e4d1d
Sirera-Bejarano, R. (Rafael)|||/items/dd5ea901-439c-4cbe-9798-b1ad5efb610d
Alvarez-Galindo, J.I. (José Ignacio)|||/items/c88ef755-513c-4ff3-bbff-44aadbf32204
author Navarro-Blasco, I. (Iñigo)|||/items/733b109b-1074-49e9-8952-70ec6928cc54
author_facet Navarro-Blasco, I. (Iñigo)|||/items/733b109b-1074-49e9-8952-70ec6928cc54
Fernandez-Alvarez, J.M. (José María)|||/items/1dea5bde-978e-46db-8871-8d426cbb52c8
Duran-Benito, A. (Adrian)|||/items/7059fa82-fd72-4355-8d76-0fd12a2e4d1d
Sirera-Bejarano, R. (Rafael)|||/items/dd5ea901-439c-4cbe-9798-b1ad5efb610d
Alvarez-Galindo, J.I. (José Ignacio)|||/items/c88ef755-513c-4ff3-bbff-44aadbf32204
author_role author
author2 Fernandez-Alvarez, J.M. (José María)|||/items/1dea5bde-978e-46db-8871-8d426cbb52c8
Duran-Benito, A. (Adrian)|||/items/7059fa82-fd72-4355-8d76-0fd12a2e4d1d
Sirera-Bejarano, R. (Rafael)|||/items/dd5ea901-439c-4cbe-9798-b1ad5efb610d
Alvarez-Galindo, J.I. (José Ignacio)|||/items/c88ef755-513c-4ff3-bbff-44aadbf32204
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Dadun. Depósito Académico Digital Universidad de Navarra
dc.subject.none.fl_str_mv Calcium aluminate cement
Leaching
Compressive strength
SEM
Toxic metals
Pore size distribution
topic Calcium aluminate cement
Leaching
Compressive strength
SEM
Toxic metals
Pore size distribution
description The recycling of WFS in calcium aluminate cement mortars at high level of replacement (50%) was studied. Consistency and setting time were measured in fresh mortars. Two different curing conditions were used, the second one with the aim of enhancing the formation of stable cubic calcium aluminate hydrates. Compressive strength, pore size distribution and SEM examination were carried out to assess the effectiveness of CAC matrix in the recycling of WFS. The effect of the incorporation of a polymeric admixture – a chitosan derivative – was also explored. Leaching studies on hardened mortars of three target pollutants of the WFS (toxic metals Pb, Cr and Zn) were also done to evaluate their immobilization. By comparison with OPC mortars, the use of CAC showed several advantages, improving the compressive strength and the toxic metal retention.
publishDate 2013
dc.date.none.fl_str_mv 2013
2013-07-30
2013
2013-11-01
2013
2013-11-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10171/29527
url https://hdl.handle.net/10171/29527
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
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
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Dadun. Depósito Académico Digital de la Universidad de Navarra
instname:Universidad de Navarra
instname_str Universidad de Navarra
reponame_str Dadun. Depósito Académico Digital de la Universidad de Navarra
collection Dadun. Depósito Académico Digital de la Universidad de Navarra
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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