Efficiency factor and modulus of elasticity of lightweight concrete with expanded clay aggregate

Detalhes bibliográficos
Autor(a) principal: Moravia,W.G
Data de Publicação: 2010
Outros Autores: Gumieri,A. G., Vasconcelos,W. L.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista IBRACON de Estruturas e Materiais
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952010000200005
Resumo: Nowadays lightweight concrete is used on a large scale for structural purposes and to reduce the self-weight of structures. Specific grav- ity, compressive strength, strength/weight ratio and modulus of elasticity are important factors in the mechanical behavior of structures. This work studies these properties in lightweight aggregate concrete (LWAC) and normal-weight concrete (NWC), comparing them. Spe- cific gravity was evaluated in the fresh and hardened states. Four mixture proportions were adopted to evaluate compressive strength. For each proposed mixture proportion of the two concretes, cylindrical specimens were molded and tested at ages of 3, 7 and 28 days. The modulus of elasticity of the NWC and LWAC was analyzed by static, dynamic and empirical methods. The results show a larger strength/ weight ratio for LWAC, although this concrete presented lower compressive strength.
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spelling Efficiency factor and modulus of elasticity of lightweight concrete with expanded clay aggregatelightweight concreteefficiency factormodulus of elasticityNowadays lightweight concrete is used on a large scale for structural purposes and to reduce the self-weight of structures. Specific grav- ity, compressive strength, strength/weight ratio and modulus of elasticity are important factors in the mechanical behavior of structures. This work studies these properties in lightweight aggregate concrete (LWAC) and normal-weight concrete (NWC), comparing them. Spe- cific gravity was evaluated in the fresh and hardened states. Four mixture proportions were adopted to evaluate compressive strength. For each proposed mixture proportion of the two concretes, cylindrical specimens were molded and tested at ages of 3, 7 and 28 days. The modulus of elasticity of the NWC and LWAC was analyzed by static, dynamic and empirical methods. The results show a larger strength/ weight ratio for LWAC, although this concrete presented lower compressive strength.IBRACON - Instituto Brasileiro do Concreto2010-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952010000200005Revista IBRACON de Estruturas e Materiais v.3 n.2 2010reponame:Revista IBRACON de Estruturas e Materiaisinstname:Instituto Brasileiro do Concreto (IBRACON)instacron:IBRACON10.1590/S1983-41952010000200005info:eu-repo/semantics/openAccessMoravia,W.GGumieri,A. G.Vasconcelos,W. L.eng2014-09-18T00:00:00Zoai:scielo:S1983-41952010000200005Revistahttp://www.revistas.ibracon.org.br/index.php/riemhttps://old.scielo.br/oai/scielo-oai.phpeditores.riem@gmail.com||arlene@ibracon.org.br1983-41951983-4195opendoar:2014-09-18T00:00Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)false
dc.title.none.fl_str_mv Efficiency factor and modulus of elasticity of lightweight concrete with expanded clay aggregate
title Efficiency factor and modulus of elasticity of lightweight concrete with expanded clay aggregate
spellingShingle Efficiency factor and modulus of elasticity of lightweight concrete with expanded clay aggregate
Moravia,W.G
lightweight concrete
efficiency factor
modulus of elasticity
title_short Efficiency factor and modulus of elasticity of lightweight concrete with expanded clay aggregate
title_full Efficiency factor and modulus of elasticity of lightweight concrete with expanded clay aggregate
title_fullStr Efficiency factor and modulus of elasticity of lightweight concrete with expanded clay aggregate
title_full_unstemmed Efficiency factor and modulus of elasticity of lightweight concrete with expanded clay aggregate
title_sort Efficiency factor and modulus of elasticity of lightweight concrete with expanded clay aggregate
author Moravia,W.G
author_facet Moravia,W.G
Gumieri,A. G.
Vasconcelos,W. L.
author_role author
author2 Gumieri,A. G.
Vasconcelos,W. L.
author2_role author
author
dc.contributor.author.fl_str_mv Moravia,W.G
Gumieri,A. G.
Vasconcelos,W. L.
dc.subject.por.fl_str_mv lightweight concrete
efficiency factor
modulus of elasticity
topic lightweight concrete
efficiency factor
modulus of elasticity
description Nowadays lightweight concrete is used on a large scale for structural purposes and to reduce the self-weight of structures. Specific grav- ity, compressive strength, strength/weight ratio and modulus of elasticity are important factors in the mechanical behavior of structures. This work studies these properties in lightweight aggregate concrete (LWAC) and normal-weight concrete (NWC), comparing them. Spe- cific gravity was evaluated in the fresh and hardened states. Four mixture proportions were adopted to evaluate compressive strength. For each proposed mixture proportion of the two concretes, cylindrical specimens were molded and tested at ages of 3, 7 and 28 days. The modulus of elasticity of the NWC and LWAC was analyzed by static, dynamic and empirical methods. The results show a larger strength/ weight ratio for LWAC, although this concrete presented lower compressive strength.
publishDate 2010
dc.date.none.fl_str_mv 2010-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952010000200005
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1983-41952010000200005
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dc.publisher.none.fl_str_mv IBRACON - Instituto Brasileiro do Concreto
publisher.none.fl_str_mv IBRACON - Instituto Brasileiro do Concreto
dc.source.none.fl_str_mv Revista IBRACON de Estruturas e Materiais v.3 n.2 2010
reponame:Revista IBRACON de Estruturas e Materiais
instname:Instituto Brasileiro do Concreto (IBRACON)
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collection Revista IBRACON de Estruturas e Materiais
repository.name.fl_str_mv Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)
repository.mail.fl_str_mv editores.riem@gmail.com||arlene@ibracon.org.br
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