Unstabilized rammed Earth: characterization of material collected from old constructions in South Portugal and comparison to normative requirements
Autor(a) principal: | |
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Data de Publicação: | 2014 |
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/10400.21/4782 |
Resumo: | Unstabilized rammed earth is a recyclable, economical, and eco-friendly building material, used in the past and still applied today. Traditionally, its use was based on a long empirical knowledge of the local materials. Because this knowledge was mostly lost or is no longer sufficient, in many countries normative documents have been produced to allow the assessment of rammed earth soils. With the aim of contributing for a refining of these normative requirements, this article presents a research work that included: (i) collection of Unstabilized rammed earth samples from six constructions in Portugal; (ii) a literature survey of normative and complementary documents to identify the most mentioned key-properties, the test procedures and the corresponding threshold limits; and (iii) a discussion of the test procedures and of the thresholds limits in the light of the experimental results. The analyzed properties are the particle size distribution, maximum particle size, plasticity, compaction, linear shrinkage, organic content, and salt content. The work highlights the advantages of taking into account the characteristics of existing constructions as a basis for the establishment and further refining of consistent threshold values. In particular, it shows that it is essential to adjust the requirements to the specificities of local materials. |
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Unstabilized rammed Earth: characterization of material collected from old constructions in South Portugal and comparison to normative requirementsRequirementsUnstabilized Rammed EarthEarth ConstructionNormative DocumentsSoil PropertiesUnstabilized rammed earth is a recyclable, economical, and eco-friendly building material, used in the past and still applied today. Traditionally, its use was based on a long empirical knowledge of the local materials. Because this knowledge was mostly lost or is no longer sufficient, in many countries normative documents have been produced to allow the assessment of rammed earth soils. With the aim of contributing for a refining of these normative requirements, this article presents a research work that included: (i) collection of Unstabilized rammed earth samples from six constructions in Portugal; (ii) a literature survey of normative and complementary documents to identify the most mentioned key-properties, the test procedures and the corresponding threshold limits; and (iii) a discussion of the test procedures and of the thresholds limits in the light of the experimental results. The analyzed properties are the particle size distribution, maximum particle size, plasticity, compaction, linear shrinkage, organic content, and salt content. The work highlights the advantages of taking into account the characteristics of existing constructions as a basis for the establishment and further refining of consistent threshold values. In particular, it shows that it is essential to adjust the requirements to the specificities of local materials.Taylor & Francis INCRCIPLGomes, Idália da SilvaGonçalves, Teresa DiazFaria, Paulina2015-08-17T15:19:59Z2014-03-042014-03-04T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/4782engGOMES, Maria Idália da Silva; GONÇALVES, Teresa Diaz; FARIA, Paulina – Unstabilized rammed earth: characterization of material collected from old constructions in south Portugal and comparison to normative requirements. International Journal of Architecture Heritage. ISSN: 1558-3058. Vol. 8, nr. 2 (2014) p. 185-212.1558-305810.1080/15583058.2012.683133metadata 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:RCAAP2023-08-03T09:47:16Zoai:repositorio.ipl.pt:10400.21/4782Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:14:10.058275Repositório 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 |
Unstabilized rammed Earth: characterization of material collected from old constructions in South Portugal and comparison to normative requirements |
title |
Unstabilized rammed Earth: characterization of material collected from old constructions in South Portugal and comparison to normative requirements |
spellingShingle |
Unstabilized rammed Earth: characterization of material collected from old constructions in South Portugal and comparison to normative requirements Gomes, Idália da Silva Requirements Unstabilized Rammed Earth Earth Construction Normative Documents Soil Properties |
title_short |
Unstabilized rammed Earth: characterization of material collected from old constructions in South Portugal and comparison to normative requirements |
title_full |
Unstabilized rammed Earth: characterization of material collected from old constructions in South Portugal and comparison to normative requirements |
title_fullStr |
Unstabilized rammed Earth: characterization of material collected from old constructions in South Portugal and comparison to normative requirements |
title_full_unstemmed |
Unstabilized rammed Earth: characterization of material collected from old constructions in South Portugal and comparison to normative requirements |
title_sort |
Unstabilized rammed Earth: characterization of material collected from old constructions in South Portugal and comparison to normative requirements |
author |
Gomes, Idália da Silva |
author_facet |
Gomes, Idália da Silva Gonçalves, Teresa Diaz Faria, Paulina |
author_role |
author |
author2 |
Gonçalves, Teresa Diaz Faria, Paulina |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
RCIPL |
dc.contributor.author.fl_str_mv |
Gomes, Idália da Silva Gonçalves, Teresa Diaz Faria, Paulina |
dc.subject.por.fl_str_mv |
Requirements Unstabilized Rammed Earth Earth Construction Normative Documents Soil Properties |
topic |
Requirements Unstabilized Rammed Earth Earth Construction Normative Documents Soil Properties |
description |
Unstabilized rammed earth is a recyclable, economical, and eco-friendly building material, used in the past and still applied today. Traditionally, its use was based on a long empirical knowledge of the local materials. Because this knowledge was mostly lost or is no longer sufficient, in many countries normative documents have been produced to allow the assessment of rammed earth soils. With the aim of contributing for a refining of these normative requirements, this article presents a research work that included: (i) collection of Unstabilized rammed earth samples from six constructions in Portugal; (ii) a literature survey of normative and complementary documents to identify the most mentioned key-properties, the test procedures and the corresponding threshold limits; and (iii) a discussion of the test procedures and of the thresholds limits in the light of the experimental results. The analyzed properties are the particle size distribution, maximum particle size, plasticity, compaction, linear shrinkage, organic content, and salt content. The work highlights the advantages of taking into account the characteristics of existing constructions as a basis for the establishment and further refining of consistent threshold values. In particular, it shows that it is essential to adjust the requirements to the specificities of local materials. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-03-04 2014-03-04T00:00:00Z 2015-08-17T15:19:59Z |
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/10400.21/4782 |
url |
http://hdl.handle.net/10400.21/4782 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
GOMES, Maria Idália da Silva; GONÇALVES, Teresa Diaz; FARIA, Paulina – Unstabilized rammed earth: characterization of material collected from old constructions in south Portugal and comparison to normative requirements. International Journal of Architecture Heritage. ISSN: 1558-3058. Vol. 8, nr. 2 (2014) p. 185-212. 1558-3058 10.1080/15583058.2012.683133 |
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metadata only access info:eu-repo/semantics/openAccess |
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metadata only access |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Taylor & Francis INC |
publisher.none.fl_str_mv |
Taylor & Francis INC |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799133398594224128 |