Preparation and Characterization of Geopolymers Obtained from Alkaline Activated Hollow Brick Waste

Geopolymers are inorganic polymers obtained through the alkaline activation of aluminosilicates. Due to their cementitious properties, they are being studied as a sustainable alternative to Portland cement. Red ceramic waste (RCW), being a source of silica and alumina, can serve as a precursor for p...

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Authors: Colnago, Lauren Rayna Lima [UNESP], Santos, Ana Karla Vieira [UNESP], dos Santos Potensa, Bruno [UNESP], Chaves, Felipe Pires [UNESP], de Almeida Santos, Gleyson Tadeu [UNESP], de Souza, Agda Eunice [UNESP], Teixeira, Silvio Rainho [UNESP]
Format: article
Status:Published version
Publication Date:2024
Country:Brasil
Institution:Universidade Estadual Paulista (UNESP)
Repository:Repositório Institucional da UNESP
Language:English
OAI Identifier:oai:repositorio.unesp.br:11449/300246
Online Access:http://dx.doi.org/10.1590/1980-5373-MR-2024-0203
https://hdl.handle.net/11449/300246
Access Level:Open access
Keyword:activating solution
Geopolymer
hollow brick
hydrated lime
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spelling Preparation and Characterization of Geopolymers Obtained from Alkaline Activated Hollow Brick Wasteactivating solutionGeopolymerhollow brickhydrated limeGeopolymers are inorganic polymers obtained through the alkaline activation of aluminosilicates. Due to their cementitious properties, they are being studied as a sustainable alternative to Portland cement. Red ceramic waste (RCW), being a source of silica and alumina, can serve as a precursor for producing geopolymers. In this work, we evaluated the feasibility of producing geopolymers from hollow brick (HB) and hydrated lime, using only sodium hydroxide as an alkaline activator. The test specimens were prepared replacement HB by up to 30 wt% of hydrated lime, aiming to evaluate the compressive strength after 7 and 28 curing days of the geopolymer produced. The results showed that samples with 30 wt% of hydrated lime, achieved the highest compressive strength (11.26 MPa) after 28 days of curing, although all values found were above the limit established by Brazilian standards for modular geopolymer bricks. The results therefore show a sustainable and widely viable implementation alternative to reduce the environmental impacts caused by the production of Portland cement.Universidade Estadual Paulista (UNESP) Faculdade de Ciências e Tecnologia Laboratório de Caracterização e Gestão de Resíduos Sólidos (LCGRS), SPUniversidade Estadual Paulista (UNESP) Faculdade de Ciências e Tecnologia Laboratório de Caracterização e Gestão de Resíduos Sólidos (LCGRS), SPUniversidade Estadual Paulista (UNESP)2025-04-29T18:49:01Z2024-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1590/1980-5373-MR-2024-0203Materials Research, v. 27.1980-53731516-1439https://hdl.handle.net/11449/30024610.1590/1980-5373-MR-2024-02032-s2.0-85201879436Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMaterials Researchinfo:eu-repo/semantics/openAccessColnago, Lauren Rayna Lima [UNESP]Santos, Ana Karla Vieira [UNESP]dos Santos Potensa, Bruno [UNESP]Chaves, Felipe Pires [UNESP]de Almeida Santos, Gleyson Tadeu [UNESP]de Souza, Agda Eunice [UNESP]Teixeira, Silvio Rainho [UNESP]2025-10-22T17:39:12Zoai:repositorio.unesp.br:11449/300246Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462025-10-22T17:39:12Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Preparation and Characterization of Geopolymers Obtained from Alkaline Activated Hollow Brick Waste
title Preparation and Characterization of Geopolymers Obtained from Alkaline Activated Hollow Brick Waste
spellingShingle Preparation and Characterization of Geopolymers Obtained from Alkaline Activated Hollow Brick Waste
Colnago, Lauren Rayna Lima [UNESP]
activating solution
Geopolymer
hollow brick
hydrated lime
title_short Preparation and Characterization of Geopolymers Obtained from Alkaline Activated Hollow Brick Waste
title_full Preparation and Characterization of Geopolymers Obtained from Alkaline Activated Hollow Brick Waste
title_fullStr Preparation and Characterization of Geopolymers Obtained from Alkaline Activated Hollow Brick Waste
title_full_unstemmed Preparation and Characterization of Geopolymers Obtained from Alkaline Activated Hollow Brick Waste
title_sort Preparation and Characterization of Geopolymers Obtained from Alkaline Activated Hollow Brick Waste
dc.creator.none.fl_str_mv Colnago, Lauren Rayna Lima [UNESP]
Santos, Ana Karla Vieira [UNESP]
dos Santos Potensa, Bruno [UNESP]
Chaves, Felipe Pires [UNESP]
de Almeida Santos, Gleyson Tadeu [UNESP]
de Souza, Agda Eunice [UNESP]
Teixeira, Silvio Rainho [UNESP]
author Colnago, Lauren Rayna Lima [UNESP]
author_facet Colnago, Lauren Rayna Lima [UNESP]
Santos, Ana Karla Vieira [UNESP]
dos Santos Potensa, Bruno [UNESP]
Chaves, Felipe Pires [UNESP]
de Almeida Santos, Gleyson Tadeu [UNESP]
de Souza, Agda Eunice [UNESP]
Teixeira, Silvio Rainho [UNESP]
author_role author
author2 Santos, Ana Karla Vieira [UNESP]
dos Santos Potensa, Bruno [UNESP]
Chaves, Felipe Pires [UNESP]
de Almeida Santos, Gleyson Tadeu [UNESP]
de Souza, Agda Eunice [UNESP]
Teixeira, Silvio Rainho [UNESP]
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
dc.subject.por.fl_str_mv activating solution
Geopolymer
hollow brick
hydrated lime
topic activating solution
Geopolymer
hollow brick
hydrated lime
description Geopolymers are inorganic polymers obtained through the alkaline activation of aluminosilicates. Due to their cementitious properties, they are being studied as a sustainable alternative to Portland cement. Red ceramic waste (RCW), being a source of silica and alumina, can serve as a precursor for producing geopolymers. In this work, we evaluated the feasibility of producing geopolymers from hollow brick (HB) and hydrated lime, using only sodium hydroxide as an alkaline activator. The test specimens were prepared replacement HB by up to 30 wt% of hydrated lime, aiming to evaluate the compressive strength after 7 and 28 curing days of the geopolymer produced. The results showed that samples with 30 wt% of hydrated lime, achieved the highest compressive strength (11.26 MPa) after 28 days of curing, although all values found were above the limit established by Brazilian standards for modular geopolymer bricks. The results therefore show a sustainable and widely viable implementation alternative to reduce the environmental impacts caused by the production of Portland cement.
publishDate 2024
dc.date.none.fl_str_mv 2024-01-01
2025-04-29T18:49:01Z
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/10.1590/1980-5373-MR-2024-0203
Materials Research, v. 27.
1980-5373
1516-1439
https://hdl.handle.net/11449/300246
10.1590/1980-5373-MR-2024-0203
2-s2.0-85201879436
url http://dx.doi.org/10.1590/1980-5373-MR-2024-0203
https://hdl.handle.net/11449/300246
identifier_str_mv Materials Research, v. 27.
1980-5373
1516-1439
10.1590/1980-5373-MR-2024-0203
2-s2.0-85201879436
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Materials Research
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 repositoriounesp@unesp.br
_version_ 1853671901415604224
score 15,223283

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