Optimisation of mortar with Mg-Al-Hydrotalcite as sustainable management strategy lead waste
This study analyses how a Mg-Al-Hydrotalcite with carbonate in the interlayer influences the hydration of mortar allowing the management of lead waste (solid or liquid) in a cement-based material. First, the compatibility of hydrotalcite with the cementitious matrix was studied through heat of hydra...
| Autores: | , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2021 |
| País: | España |
| Institución: | Universidad de Navarra |
| Repositorio: | Dadun. Depósito Académico Digital de la Universidad de Navarra |
| Idioma: | inglés |
| OAI Identifier: | oai:dadun.unav.edu:10171/62121 |
| Acceso en línea: | https://hdl.handle.net/10171/62121 |
| Access Level: | acceso abierto |
| Palabra clave: | Hydrotalcite Lead Mortar Calorimetry Leaching Waste management |
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Optimisation of mortar with Mg-Al-Hydrotalcite as sustainable management strategy lead wasteLozano-Lunar, A. (Angélica)|||/items/80d0f634-2b74-459b-8c53-20ce436c037aAlvarez-Galindo, J.I. (José Ignacio)|||/items/c88ef755-513c-4ff3-bbff-44aadbf32204Navarro-Blasco, I. (Iñigo)|||/items/733b109b-1074-49e9-8952-70ec6928cc54Jiménez, J.R. (José Ramón)|||/items/2ef28b9c-a6ea-4f2b-bde2-49935d266102Fernández-Rodríguez, J.M. (José María)|||/items/4c3c942b-7a26-4807-94e4-3c607039d0deHydrotalciteLeadMortarCalorimetryLeachingWaste managementThis study analyses how a Mg-Al-Hydrotalcite with carbonate in the interlayer influences the hydration of mortar allowing the management of lead waste (solid or liquid) in a cement-based material. First, the compatibility of hydrotalcite with the cementitious matrix was studied through heat of hydration, workability, consistency, compressive strength and mineralogical phase formation. The changes produced by the incorporation of hydrotalcite were not drastic and the compatibility with the cement was verified. Lead was added in oxide and nitrate form to mortar with or without hydrotalcite and the same properties were evaluated, including a leaching test. The incorporation of lead delayed the hydration, this effect being increased by the hydrotalcite, which happened in the first instants of hydration. The addition of hydrotalcite counteracted the negative effect of lead in compressive strength values. The interaction between the hydrotalcite and the lead waste was favoured by the formation of plumbites under the pH conditions of cement hydration. Consequently, this interaction would seem to be superficial. The lead leaching decreased to values included in the "Non-Hazardous" limit of the environmental classification, very close to "Inert". All mortars were produced by two mixing procedures to establish differences. When hydrotalcite was included, the compressive strength was higher in the second procedure and lead leaching showed better behaviour in the first procedure.Dadun. Depósito Académico Digital Universidad de Navarra20212021-09-3020212021-01-0120212021-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10171/62121reponame: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:10171/621212026-06-21T12:47:57Z |
| dc.title.none.fl_str_mv |
Optimisation of mortar with Mg-Al-Hydrotalcite as sustainable management strategy lead waste |
| title |
Optimisation of mortar with Mg-Al-Hydrotalcite as sustainable management strategy lead waste |
| spellingShingle |
Optimisation of mortar with Mg-Al-Hydrotalcite as sustainable management strategy lead waste Lozano-Lunar, A. (Angélica)|||/items/80d0f634-2b74-459b-8c53-20ce436c037a Hydrotalcite Lead Mortar Calorimetry Leaching Waste management |
| title_short |
Optimisation of mortar with Mg-Al-Hydrotalcite as sustainable management strategy lead waste |
| title_full |
Optimisation of mortar with Mg-Al-Hydrotalcite as sustainable management strategy lead waste |
| title_fullStr |
Optimisation of mortar with Mg-Al-Hydrotalcite as sustainable management strategy lead waste |
| title_full_unstemmed |
Optimisation of mortar with Mg-Al-Hydrotalcite as sustainable management strategy lead waste |
| title_sort |
Optimisation of mortar with Mg-Al-Hydrotalcite as sustainable management strategy lead waste |
| dc.creator.none.fl_str_mv |
Lozano-Lunar, A. (Angélica)|||/items/80d0f634-2b74-459b-8c53-20ce436c037a Alvarez-Galindo, J.I. (José Ignacio)|||/items/c88ef755-513c-4ff3-bbff-44aadbf32204 Navarro-Blasco, I. (Iñigo)|||/items/733b109b-1074-49e9-8952-70ec6928cc54 Jiménez, J.R. (José Ramón)|||/items/2ef28b9c-a6ea-4f2b-bde2-49935d266102 Fernández-Rodríguez, J.M. (José María)|||/items/4c3c942b-7a26-4807-94e4-3c607039d0de |
| author |
Lozano-Lunar, A. (Angélica)|||/items/80d0f634-2b74-459b-8c53-20ce436c037a |
| author_facet |
Lozano-Lunar, A. (Angélica)|||/items/80d0f634-2b74-459b-8c53-20ce436c037a Alvarez-Galindo, J.I. (José Ignacio)|||/items/c88ef755-513c-4ff3-bbff-44aadbf32204 Navarro-Blasco, I. (Iñigo)|||/items/733b109b-1074-49e9-8952-70ec6928cc54 Jiménez, J.R. (José Ramón)|||/items/2ef28b9c-a6ea-4f2b-bde2-49935d266102 Fernández-Rodríguez, J.M. (José María)|||/items/4c3c942b-7a26-4807-94e4-3c607039d0de |
| author_role |
author |
| author2 |
Alvarez-Galindo, J.I. (José Ignacio)|||/items/c88ef755-513c-4ff3-bbff-44aadbf32204 Navarro-Blasco, I. (Iñigo)|||/items/733b109b-1074-49e9-8952-70ec6928cc54 Jiménez, J.R. (José Ramón)|||/items/2ef28b9c-a6ea-4f2b-bde2-49935d266102 Fernández-Rodríguez, J.M. (José María)|||/items/4c3c942b-7a26-4807-94e4-3c607039d0de |
| 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 |
Hydrotalcite Lead Mortar Calorimetry Leaching Waste management |
| topic |
Hydrotalcite Lead Mortar Calorimetry Leaching Waste management |
| description |
This study analyses how a Mg-Al-Hydrotalcite with carbonate in the interlayer influences the hydration of mortar allowing the management of lead waste (solid or liquid) in a cement-based material. First, the compatibility of hydrotalcite with the cementitious matrix was studied through heat of hydration, workability, consistency, compressive strength and mineralogical phase formation. The changes produced by the incorporation of hydrotalcite were not drastic and the compatibility with the cement was verified. Lead was added in oxide and nitrate form to mortar with or without hydrotalcite and the same properties were evaluated, including a leaching test. The incorporation of lead delayed the hydration, this effect being increased by the hydrotalcite, which happened in the first instants of hydration. The addition of hydrotalcite counteracted the negative effect of lead in compressive strength values. The interaction between the hydrotalcite and the lead waste was favoured by the formation of plumbites under the pH conditions of cement hydration. Consequently, this interaction would seem to be superficial. The lead leaching decreased to values included in the "Non-Hazardous" limit of the environmental classification, very close to "Inert". All mortars were produced by two mixing procedures to establish differences. When hydrotalcite was included, the compressive strength was higher in the second procedure and lead leaching showed better behaviour in the first procedure. |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021 2021-09-30 2021 2021-01-01 2021 2021-01-01 |
| 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/10171/62121 |
| url |
https://hdl.handle.net/10171/62121 |
| 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 |
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info:eu-repo/semantics/openAccess |
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open access http://purl.org/coar/access_right/c_abf2 |
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openAccess |
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application/pdf |
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reponame:Dadun. Depósito Académico Digital de la Universidad de Navarra instname:Universidad de Navarra |
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Universidad de Navarra |
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Dadun. Depósito Académico Digital de la Universidad de Navarra |
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Dadun. Depósito Académico Digital de la Universidad de Navarra |
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15,301603 |