Efficiency factor and modulus of elasticity of lightweight concrete with expanded clay aggregate
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , |
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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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 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952010000200005 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952010000200005 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1983-41952010000200005 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
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) instacron:IBRACON |
instname_str |
Instituto Brasileiro do Concreto (IBRACON) |
instacron_str |
IBRACON |
institution |
IBRACON |
reponame_str |
Revista IBRACON de Estruturas e Materiais |
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 |
_version_ |
1754193603993796608 |