Influence of grain size and mineralogy on the porosity/cement ratio
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/10216/76490 |
Resumo: | The porosity/cement ratio is defined as the ratio between porosity and the volumetric cement content (volume of cement over the total volume) and it is often adjusted by an exponent (xi) to the volumetric cement content (n/C-iv(xi)), which seems to depend on the type of soil. This ratio is very useful to analyse artificially cemented soils and it depends on easily calculated moulding properties. Although there are already some results regarding the correlation of this ratio with the mechanical behaviour of different soils, a theory explaining the variation of the exponent xi has yet to be established. In this work, the influence of grain size and mineralogy on xi was pursued, considering them to be the most important factors. For that purpose, a soil was divided into three different fractions, whose grain size distribution and mineralogy were known, and the exponents obtained correlating the ratio with the maximum shear modulus or the unconfined compression strength were compared. The results show that the grain size distribution explains part of the xi variation, but mineralogy and particle shape seem to have the most decisive influence. This was even more evident when comparing two uniform sands. |
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Influence of grain size and mineralogy on the porosity/cement ratioGeotecniaGeotechnicsThe porosity/cement ratio is defined as the ratio between porosity and the volumetric cement content (volume of cement over the total volume) and it is often adjusted by an exponent (xi) to the volumetric cement content (n/C-iv(xi)), which seems to depend on the type of soil. This ratio is very useful to analyse artificially cemented soils and it depends on easily calculated moulding properties. Although there are already some results regarding the correlation of this ratio with the mechanical behaviour of different soils, a theory explaining the variation of the exponent xi has yet to be established. In this work, the influence of grain size and mineralogy on xi was pursued, considering them to be the most important factors. For that purpose, a soil was divided into three different fractions, whose grain size distribution and mineralogy were known, and the exponents obtained correlating the ratio with the maximum shear modulus or the unconfined compression strength were compared. The results show that the grain size distribution explains part of the xi variation, but mineralogy and particle shape seem to have the most decisive influence. This was even more evident when comparing two uniform sands.20132013-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10216/76490eng2049-825X10.1680/geolett.13.00003S. RiosA. Viana da FonsecaN. C. ConsoliM. FlossN. Cristeloinfo: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:RCAAP2023-11-29T12:41:04Zoai:repositorio-aberto.up.pt:10216/76490Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:24:46.955468Repositório 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 |
Influence of grain size and mineralogy on the porosity/cement ratio |
title |
Influence of grain size and mineralogy on the porosity/cement ratio |
spellingShingle |
Influence of grain size and mineralogy on the porosity/cement ratio S. Rios Geotecnia Geotechnics |
title_short |
Influence of grain size and mineralogy on the porosity/cement ratio |
title_full |
Influence of grain size and mineralogy on the porosity/cement ratio |
title_fullStr |
Influence of grain size and mineralogy on the porosity/cement ratio |
title_full_unstemmed |
Influence of grain size and mineralogy on the porosity/cement ratio |
title_sort |
Influence of grain size and mineralogy on the porosity/cement ratio |
author |
S. Rios |
author_facet |
S. Rios A. Viana da Fonseca N. C. Consoli M. Floss N. Cristelo |
author_role |
author |
author2 |
A. Viana da Fonseca N. C. Consoli M. Floss N. Cristelo |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
S. Rios A. Viana da Fonseca N. C. Consoli M. Floss N. Cristelo |
dc.subject.por.fl_str_mv |
Geotecnia Geotechnics |
topic |
Geotecnia Geotechnics |
description |
The porosity/cement ratio is defined as the ratio between porosity and the volumetric cement content (volume of cement over the total volume) and it is often adjusted by an exponent (xi) to the volumetric cement content (n/C-iv(xi)), which seems to depend on the type of soil. This ratio is very useful to analyse artificially cemented soils and it depends on easily calculated moulding properties. Although there are already some results regarding the correlation of this ratio with the mechanical behaviour of different soils, a theory explaining the variation of the exponent xi has yet to be established. In this work, the influence of grain size and mineralogy on xi was pursued, considering them to be the most important factors. For that purpose, a soil was divided into three different fractions, whose grain size distribution and mineralogy were known, and the exponents obtained correlating the ratio with the maximum shear modulus or the unconfined compression strength were compared. The results show that the grain size distribution explains part of the xi variation, but mineralogy and particle shape seem to have the most decisive influence. This was even more evident when comparing two uniform sands. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013 2013-01-01T00:00:00Z |
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 |
https://hdl.handle.net/10216/76490 |
url |
https://hdl.handle.net/10216/76490 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2049-825X 10.1680/geolett.13.00003 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
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 |
|
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1799135551610159104 |