Design and properties of 100% waste-based ternary alkali-activated mortars: Blast furnace slag, olive-stone biomass ash and rice husk ash
Autor(a) principal: | |
---|---|
Data de Publicação: | 2020 |
Outros Autores: | , , , , , |
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. |
id |
UNSP_cf7763d78c6aaf713d1948e7c386f22e |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/197961 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
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 |
|
_version_ |
1808128222542430208 |