Influence of the segregation phenomenon on structural efficiency of lightweight aggregate concretes

Lightweight aggregate concretes (LWAC) are versatile and interesting materials for projects that require greater structural efficiency. Due to the difference that exists between the densities of the materials used in these types of concrete, during transport and mainly compaction, their aggregates t...

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Authors: Solak, Afonso Miguel, Tenza Abril, Antonio José, García Vera, Victoria Eugenia
Format: article
Publication Date:2020
Country:España
Institution:Consejo General de la Arquitectura Técnica de España (CGATE)
Repository:RIARTE
OAI Identifier:oai:www.riarte.es:20.500.12251/1927
Online Access:http://hdl.handle.net/20.500.12251/1927
https://doi.org/10.3390/ma13245754
Access Level:Open access
Keyword:Resistencia a compresión
Hormigón ligero estructural (HAL)
Áridos ligeros
Compactación
Segregación -material-
Durabilidad
Material de construcción
Ensayos (propiedades o materiales)
Resistencia mecánica
3313.04 Material de Construcción
3305.05 Tecnología del Hormigón
3305.33 Resistencia de Estructuras
3312.08 Propiedades de Los Materiales
3312.12 Ensayo de Materiales
3312.09 Resistencia de Materiales
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spelling Influence of the segregation phenomenon on structural efficiency of lightweight aggregate concretesSolak, Afonso MiguelTenza Abril, Antonio JoséGarcía Vera, Victoria EugeniaResistencia a compresiónHormigón ligero estructural (HAL)Áridos ligerosCompactaciónSegregación -material-DurabilidadMaterial de construcciónEnsayos (propiedades o materiales)Resistencia mecánica3313.04 Material de Construcción3305.05 Tecnología del Hormigón3305.33 Resistencia de Estructuras3312.08 Propiedades de Los Materiales3312.12 Ensayo de Materiales3312.09 Resistencia de MaterialesLightweight aggregate concretes (LWAC) are versatile and interesting materials for projects that require greater structural efficiency. Due to the difference that exists between the densities of the materials used in these types of concrete, during transport and mainly compaction, their aggregates tend to separate from the mortar matrix, floating towards the surface, a phenomenon called segregation. Segregation in LWAC can affect its durability properties, its density, and directly affect its structural efficiency. In this work, different concrete densities (1700 kg/m3 and 1900 kg/m3) manufactured with different dosages (two different lightweight aggregates) and compaction methods (one or two layers) were analyzed to verify the impact of segregation on its structural efficiency. For this purpose, the segregation index of the LWAC was obtained by means of the image analysis technique. In addition, to obtain their structural efficiency, the density and compressive strength were obtained at different heights of the tested specimens. The results show the vibration of the samples in two layers leads to a more efficient elimination of trapped air, a reduction in the risk of segregation, and better structural efficiency. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.MDPI AG2020info:eu-repo/semantics/articlehttp://hdl.handle.net/20.500.12251/1927https://doi.org/10.3390/ma13245754reponame:RIARTEinstname:Consejo General de la Arquitectura Técnica de España (CGATE)Ingléshttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:www.riarte.es:20.500.12251/19272026-06-02T12:44:41Z
dc.title.none.fl_str_mv Influence of the segregation phenomenon on structural efficiency of lightweight aggregate concretes
title Influence of the segregation phenomenon on structural efficiency of lightweight aggregate concretes
spellingShingle Influence of the segregation phenomenon on structural efficiency of lightweight aggregate concretes
Solak, Afonso Miguel
Resistencia a compresión
Hormigón ligero estructural (HAL)
Áridos ligeros
Compactación
Segregación -material-
Durabilidad
Material de construcción
Ensayos (propiedades o materiales)
Resistencia mecánica
3313.04 Material de Construcción
3305.05 Tecnología del Hormigón
3305.33 Resistencia de Estructuras
3312.08 Propiedades de Los Materiales
3312.12 Ensayo de Materiales
3312.09 Resistencia de Materiales
title_short Influence of the segregation phenomenon on structural efficiency of lightweight aggregate concretes
title_full Influence of the segregation phenomenon on structural efficiency of lightweight aggregate concretes
title_fullStr Influence of the segregation phenomenon on structural efficiency of lightweight aggregate concretes
title_full_unstemmed Influence of the segregation phenomenon on structural efficiency of lightweight aggregate concretes
title_sort Influence of the segregation phenomenon on structural efficiency of lightweight aggregate concretes
dc.creator.none.fl_str_mv Solak, Afonso Miguel
Tenza Abril, Antonio José
García Vera, Victoria Eugenia
author Solak, Afonso Miguel
author_facet Solak, Afonso Miguel
Tenza Abril, Antonio José
García Vera, Victoria Eugenia
author_role author
author2 Tenza Abril, Antonio José
García Vera, Victoria Eugenia
author2_role author
author
dc.subject.none.fl_str_mv Resistencia a compresión
Hormigón ligero estructural (HAL)
Áridos ligeros
Compactación
Segregación -material-
Durabilidad
Material de construcción
Ensayos (propiedades o materiales)
Resistencia mecánica
3313.04 Material de Construcción
3305.05 Tecnología del Hormigón
3305.33 Resistencia de Estructuras
3312.08 Propiedades de Los Materiales
3312.12 Ensayo de Materiales
3312.09 Resistencia de Materiales
topic Resistencia a compresión
Hormigón ligero estructural (HAL)
Áridos ligeros
Compactación
Segregación -material-
Durabilidad
Material de construcción
Ensayos (propiedades o materiales)
Resistencia mecánica
3313.04 Material de Construcción
3305.05 Tecnología del Hormigón
3305.33 Resistencia de Estructuras
3312.08 Propiedades de Los Materiales
3312.12 Ensayo de Materiales
3312.09 Resistencia de Materiales
description Lightweight aggregate concretes (LWAC) are versatile and interesting materials for projects that require greater structural efficiency. Due to the difference that exists between the densities of the materials used in these types of concrete, during transport and mainly compaction, their aggregates tend to separate from the mortar matrix, floating towards the surface, a phenomenon called segregation. Segregation in LWAC can affect its durability properties, its density, and directly affect its structural efficiency. In this work, different concrete densities (1700 kg/m3 and 1900 kg/m3) manufactured with different dosages (two different lightweight aggregates) and compaction methods (one or two layers) were analyzed to verify the impact of segregation on its structural efficiency. For this purpose, the segregation index of the LWAC was obtained by means of the image analysis technique. In addition, to obtain their structural efficiency, the density and compressive strength were obtained at different heights of the tested specimens. The results show the vibration of the samples in two layers leads to a more efficient elimination of trapped air, a reduction in the risk of segregation, and better structural efficiency. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12251/1927
https://doi.org/10.3390/ma13245754
url http://hdl.handle.net/20.500.12251/1927
https://doi.org/10.3390/ma13245754
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv MDPI AG
publisher.none.fl_str_mv MDPI AG
dc.source.none.fl_str_mv reponame:RIARTE
instname:Consejo General de la Arquitectura Técnica de España (CGATE)
instname_str Consejo General de la Arquitectura Técnica de España (CGATE)
reponame_str RIARTE
collection RIARTE
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869408852924956672
score 15,300724

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