Comparison of mineralogical, mechanical and hygroscopic characteristic of earthen, gypsum and cement-based plasters
Autor(a) principal: | |
---|---|
Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.21/12277 |
Resumo: | It is important to ensure indoor comfort by passive methods, avoiding mechanical equipment that has energy costs. To assess plasters common efficiency but also its contribution as moisture buffers, five different plastering mortars, including unstabilized and stabilized earth-based plasters, gypsum and cement-based pre-mixed plasters, were analyzed and their chemical, mechanical and hygroscopic characteristics compared. The materials and mortars were analyzed by X-ray diffraction and simultaneous thermal analysis. Linear shrinkage, dry bulk density, dynamic modulus of elasticity, flexural and compressive strengths, dry abrasion resistance, surface cohesion, surface hardness and sorption and desorption of mortars and plasters were also evaluated. The mechanical strength of earthen mortars is lower than gypsum and cement-based mortars. However, earth plasters show the highest hygroscopicity, acting as moisture passive buffers, improving thermal comfort and contributing to occupants health. |
id |
RCAP_73bf4f33794747c25af49d6c57b37cc1 |
---|---|
oai_identifier_str |
oai:repositorio.ipl.pt:10400.21/12277 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Comparison of mineralogical, mechanical and hygroscopic characteristic of earthen, gypsum and cement-based plastersAbrasionAir limeCohesionCompression and flexural strengthLaboratory testingMortarSorptionXRDTGA/DSCIt is important to ensure indoor comfort by passive methods, avoiding mechanical equipment that has energy costs. To assess plasters common efficiency but also its contribution as moisture buffers, five different plastering mortars, including unstabilized and stabilized earth-based plasters, gypsum and cement-based pre-mixed plasters, were analyzed and their chemical, mechanical and hygroscopic characteristics compared. The materials and mortars were analyzed by X-ray diffraction and simultaneous thermal analysis. Linear shrinkage, dry bulk density, dynamic modulus of elasticity, flexural and compressive strengths, dry abrasion resistance, surface cohesion, surface hardness and sorption and desorption of mortars and plasters were also evaluated. The mechanical strength of earthen mortars is lower than gypsum and cement-based mortars. However, earth plasters show the highest hygroscopicity, acting as moisture passive buffers, improving thermal comfort and contributing to occupants health.ElsevierRCIPLSantos, TâniaGomes, Maria IdáliaSantos Silva, A.Ferraz, E.Faria, Paulina2020-10-07T10:42:51Z2020-09-102020-09-10T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/12277engSANTOS, Tânia; [et al] – Comparison of mineralogical, mechanical and hygroscopic characteristic of earthen, gypsum and cement-based plasters. Construction and Building Materials. ISSN 0950-0618. Vol. 254 (2020), pp. 1-110950-061810.1016/j.conbuildmat.2020.119222metadata only accessinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-08-03T10:04:52Zoai:repositorio.ipl.pt:10400.21/12277Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:20:23.920941Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Comparison of mineralogical, mechanical and hygroscopic characteristic of earthen, gypsum and cement-based plasters |
title |
Comparison of mineralogical, mechanical and hygroscopic characteristic of earthen, gypsum and cement-based plasters |
spellingShingle |
Comparison of mineralogical, mechanical and hygroscopic characteristic of earthen, gypsum and cement-based plasters Santos, Tânia Abrasion Air lime Cohesion Compression and flexural strength Laboratory testing Mortar Sorption XRD TGA/DSC |
title_short |
Comparison of mineralogical, mechanical and hygroscopic characteristic of earthen, gypsum and cement-based plasters |
title_full |
Comparison of mineralogical, mechanical and hygroscopic characteristic of earthen, gypsum and cement-based plasters |
title_fullStr |
Comparison of mineralogical, mechanical and hygroscopic characteristic of earthen, gypsum and cement-based plasters |
title_full_unstemmed |
Comparison of mineralogical, mechanical and hygroscopic characteristic of earthen, gypsum and cement-based plasters |
title_sort |
Comparison of mineralogical, mechanical and hygroscopic characteristic of earthen, gypsum and cement-based plasters |
author |
Santos, Tânia |
author_facet |
Santos, Tânia Gomes, Maria Idália Santos Silva, A. Ferraz, E. Faria, Paulina |
author_role |
author |
author2 |
Gomes, Maria Idália Santos Silva, A. Ferraz, E. Faria, Paulina |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
RCIPL |
dc.contributor.author.fl_str_mv |
Santos, Tânia Gomes, Maria Idália Santos Silva, A. Ferraz, E. Faria, Paulina |
dc.subject.por.fl_str_mv |
Abrasion Air lime Cohesion Compression and flexural strength Laboratory testing Mortar Sorption XRD TGA/DSC |
topic |
Abrasion Air lime Cohesion Compression and flexural strength Laboratory testing Mortar Sorption XRD TGA/DSC |
description |
It is important to ensure indoor comfort by passive methods, avoiding mechanical equipment that has energy costs. To assess plasters common efficiency but also its contribution as moisture buffers, five different plastering mortars, including unstabilized and stabilized earth-based plasters, gypsum and cement-based pre-mixed plasters, were analyzed and their chemical, mechanical and hygroscopic characteristics compared. The materials and mortars were analyzed by X-ray diffraction and simultaneous thermal analysis. Linear shrinkage, dry bulk density, dynamic modulus of elasticity, flexural and compressive strengths, dry abrasion resistance, surface cohesion, surface hardness and sorption and desorption of mortars and plasters were also evaluated. The mechanical strength of earthen mortars is lower than gypsum and cement-based mortars. However, earth plasters show the highest hygroscopicity, acting as moisture passive buffers, improving thermal comfort and contributing to occupants health. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-10-07T10:42:51Z 2020-09-10 2020-09-10T00:00:00Z |
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://hdl.handle.net/10400.21/12277 |
url |
http://hdl.handle.net/10400.21/12277 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
SANTOS, Tânia; [et al] – Comparison of mineralogical, mechanical and hygroscopic characteristic of earthen, gypsum and cement-based plasters. Construction and Building Materials. ISSN 0950-0618. Vol. 254 (2020), pp. 1-11 0950-0618 10.1016/j.conbuildmat.2020.119222 |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
metadata only access |
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:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799133472496812032 |