Design and properties of 100% waste-based ternary alkali-activated mortars: Blast furnace slag, olive-stone biomass ash and rice husk ash

Detalhes bibliográficos
Autor(a) principal: Font, Alba
Data de Publicação: 2020
Outros Autores: Soriano, Lourdes, de Moraes Pinheiro, Sayonara Maria, Tashima, Mauro M. [UNESP], Monzó, José, Borrachero, Maria Victoria, Payá, Jordi
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.jclepro.2019.118568
http://hdl.handle.net/11449/197961
Resumo: Alkali-activated cements (AACs) technology is being widely investigated as a replacement for ordinary Portland cement (OPC) for environmental benefits. Blast furnace slag (BFS) is one of the most well known precursors used in AACs, having comparable properties to those of traditional OPC-based materials. AACs require alkali solutions, which are commonly based on a combination of sodium or potassium hydroxides with sodium or potassium silicates in high concentration. These alkali solutions represent the use of chemical reagents, and thus can have major environmental, health and economic impacts. Olive-stone (also known as olive pits) biomass ash (OBA) is a residue mainly composed of calcium and potassium oxides. Rice husk ash (RHA) is a rich silica residue from the combustion of rice husk. The combination of both residues can produce a good activating reagent for BFS-based AACs. In the present work, 100% waste-based ternary alkali-activated mortars (TAAM) based on BFS activated by OBA and RHA were developed. The mortars were assessed in terms of their dosage, curing treatment and time evolution. Finally an eco-friendly 100% waste-based TAAM with 67.39 ± 0.44 MPa after 90 days of curing at 20 °C is obtained and a complete microstructural characterization shows a dense and compact matrix with binding gel products labelled as C(K)–S(A)-H and C(K)–S–H.
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spelling Design and properties of 100% waste-based ternary alkali-activated mortars: Blast furnace slag, olive-stone biomass ash and rice husk ashAlkali-activated cementBlast furnace slagOlive-stone biomass ashRice husk ashTernary binderAlkali-activated cements (AACs) technology is being widely investigated as a replacement for ordinary Portland cement (OPC) for environmental benefits. Blast furnace slag (BFS) is one of the most well known precursors used in AACs, having comparable properties to those of traditional OPC-based materials. AACs require alkali solutions, which are commonly based on a combination of sodium or potassium hydroxides with sodium or potassium silicates in high concentration. These alkali solutions represent the use of chemical reagents, and thus can have major environmental, health and economic impacts. Olive-stone (also known as olive pits) biomass ash (OBA) is a residue mainly composed of calcium and potassium oxides. Rice husk ash (RHA) is a rich silica residue from the combustion of rice husk. The combination of both residues can produce a good activating reagent for BFS-based AACs. In the present work, 100% waste-based ternary alkali-activated mortars (TAAM) based on BFS activated by OBA and RHA were developed. The mortars were assessed in terms of their dosage, curing treatment and time evolution. Finally an eco-friendly 100% waste-based TAAM with 67.39 ± 0.44 MPa after 90 days of curing at 20 °C is obtained and a complete microstructural characterization shows a dense and compact matrix with binding gel products labelled as C(K)–S(A)-H and C(K)–S–H.Universitat Politècnica de ValènciaICITECH – GIQUIMA Group – Grupo de Investigación en Química de los Materiales de Construcción Instituto de Ciencia y Tecnología del Hormigón Universitat Politècnica de ValenciaUFES - Federal University of Espírito Santo Department of Civil EngineeringUniversidade Estadual Paulista (UNESP) Faculdade de Engenharia de Ilha Solteira. MAC – Grupo de Pesquisa em Materiais Alternativos de ConstruçãoUniversidade Estadual Paulista (UNESP) Faculdade de Engenharia de Ilha Solteira. MAC – Grupo de Pesquisa em Materiais Alternativos de ConstruçãoUniversitat Politècnica de ValenciaUFES - Federal University of Espírito SantoUniversidade Estadual Paulista (Unesp)Font, AlbaSoriano, Lourdesde Moraes Pinheiro, Sayonara MariaTashima, Mauro M. [UNESP]Monzó, JoséBorrachero, Maria VictoriaPayá, Jordi2020-12-12T00:55:12Z2020-12-12T00:55:12Z2020-01-10info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.jclepro.2019.118568Journal of Cleaner Production, v. 243.0959-6526http://hdl.handle.net/11449/19796110.1016/j.jclepro.2019.1185682-s2.0-85072664151Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Cleaner Productioninfo:eu-repo/semantics/openAccess2021-10-23T07:27:38Zoai:repositorio.unesp.br:11449/197961Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:02:37.465916Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Design and properties of 100% waste-based ternary alkali-activated mortars: Blast furnace slag, olive-stone biomass ash and rice husk ash
title Design and properties of 100% waste-based ternary alkali-activated mortars: Blast furnace slag, olive-stone biomass ash and rice husk ash
spellingShingle Design and properties of 100% waste-based ternary alkali-activated mortars: Blast furnace slag, olive-stone biomass ash and rice husk ash
Font, Alba
Alkali-activated cement
Blast furnace slag
Olive-stone biomass ash
Rice husk ash
Ternary binder
title_short Design and properties of 100% waste-based ternary alkali-activated mortars: Blast furnace slag, olive-stone biomass ash and rice husk ash
title_full Design and properties of 100% waste-based ternary alkali-activated mortars: Blast furnace slag, olive-stone biomass ash and rice husk ash
title_fullStr Design and properties of 100% waste-based ternary alkali-activated mortars: Blast furnace slag, olive-stone biomass ash and rice husk ash
title_full_unstemmed Design and properties of 100% waste-based ternary alkali-activated mortars: Blast furnace slag, olive-stone biomass ash and rice husk ash
title_sort Design and properties of 100% waste-based ternary alkali-activated mortars: Blast furnace slag, olive-stone biomass ash and rice husk ash
author Font, Alba
author_facet Font, Alba
Soriano, Lourdes
de Moraes Pinheiro, Sayonara Maria
Tashima, Mauro M. [UNESP]
Monzó, José
Borrachero, Maria Victoria
Payá, Jordi
author_role author
author2 Soriano, Lourdes
de Moraes Pinheiro, Sayonara Maria
Tashima, Mauro M. [UNESP]
Monzó, José
Borrachero, Maria Victoria
Payá, Jordi
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universitat Politècnica de Valencia
UFES - Federal University of Espírito Santo
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Font, Alba
Soriano, Lourdes
de Moraes Pinheiro, Sayonara Maria
Tashima, Mauro M. [UNESP]
Monzó, José
Borrachero, Maria Victoria
Payá, Jordi
dc.subject.por.fl_str_mv Alkali-activated cement
Blast furnace slag
Olive-stone biomass ash
Rice husk ash
Ternary binder
topic Alkali-activated cement
Blast furnace slag
Olive-stone biomass ash
Rice husk ash
Ternary binder
description Alkali-activated cements (AACs) technology is being widely investigated as a replacement for ordinary Portland cement (OPC) for environmental benefits. Blast furnace slag (BFS) is one of the most well known precursors used in AACs, having comparable properties to those of traditional OPC-based materials. AACs require alkali solutions, which are commonly based on a combination of sodium or potassium hydroxides with sodium or potassium silicates in high concentration. These alkali solutions represent the use of chemical reagents, and thus can have major environmental, health and economic impacts. Olive-stone (also known as olive pits) biomass ash (OBA) is a residue mainly composed of calcium and potassium oxides. Rice husk ash (RHA) is a rich silica residue from the combustion of rice husk. The combination of both residues can produce a good activating reagent for BFS-based AACs. In the present work, 100% waste-based ternary alkali-activated mortars (TAAM) based on BFS activated by OBA and RHA were developed. The mortars were assessed in terms of their dosage, curing treatment and time evolution. Finally an eco-friendly 100% waste-based TAAM with 67.39 ± 0.44 MPa after 90 days of curing at 20 °C is obtained and a complete microstructural characterization shows a dense and compact matrix with binding gel products labelled as C(K)–S(A)-H and C(K)–S–H.
publishDate 2020
dc.date.none.fl_str_mv 2020-12-12T00:55:12Z
2020-12-12T00:55:12Z
2020-01-10
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.jclepro.2019.118568
Journal of Cleaner Production, v. 243.
0959-6526
http://hdl.handle.net/11449/197961
10.1016/j.jclepro.2019.118568
2-s2.0-85072664151
url http://dx.doi.org/10.1016/j.jclepro.2019.118568
http://hdl.handle.net/11449/197961
identifier_str_mv Journal of Cleaner Production, v. 243.
0959-6526
10.1016/j.jclepro.2019.118568
2-s2.0-85072664151
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of Cleaner Production
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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