Effect of aggregate size and polyethylene sheet curing on mechanical and microstructural properties of lightweight expanded clay aggregate concrete

Abstract: This study assessed the effect of lightweight expanded clay aggregate (LECA) grain size and curing with polyethylene concrete curing film (PCCF) on microstructure, interfacial transition zone (ITZ), and compressive strength of structural lightweight aggregate concrete (LWAC) produced with...

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Autores: Karakurt,Cenk, Toprak,Mehmet Uğur, Güneş,Osman
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:Chile
Institución:Agencia Nacional de Investigación y Desarrollo
Repositorio:SciELO Chile
OAI Identifier:oai:scielo:S0718-915X2022000100145
Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2022000100145
Access Level:acceso abierto
Palabra clave:expanded clay
internal curing
lightweight concrete
polyethylene sheet
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spelling Effect of aggregate size and polyethylene sheet curing on mechanical and microstructural properties of lightweight expanded clay aggregate concreteKarakurt,CenkToprak,Mehmet UğurGüneş,Osmanexpanded clayinternal curinglightweight concretepolyethylene sheetAbstract: This study assessed the effect of lightweight expanded clay aggregate (LECA) grain size and curing with polyethylene concrete curing film (PCCF) on microstructure, interfacial transition zone (ITZ), and compressive strength of structural lightweight aggregate concrete (LWAC) produced with two different Dmax (16 or 22.4 mm). To this end, 2 series of normal weight aggregate concretes (NWAC) and 6 series of LWAC incorporating 40% by vol. unprewetted LECA having (0-3, 3-8, or 8-16 mm) grain sizes were evaluated by using unit weight, compressive strength tests at 1, 7, and 28 days and SEM-EDX observations. Preventing the moisture loss from fresh concrete through PCCF curing had positive effects on compressive strength up to 14 and 9% for 1 and 28 days respectively. Shell thickness of LECA considerably increased with the decrease in LECA grain size. Thus, the compressive strength of LECA and LWAC increased by the decrease in LECA grain size. LWAC containing 0-3 mm LECA, achieved up to 21% higher compressive strength to weight ratio compared with the NWAC with the aid of the pozzolanic reactivity of fine LECA particles.Escuela de Construcción Civil, Pontificia Universidad Católica de Chile2022-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2022000100145Revista de la construcción v.21 n.1 2022reponame:SciELO Chileinstname:Agencia Nacional de Investigación y Desarrolloinstacron:ANID-SciELO Chileen10.7764/rdlc.21.1.145.info:eu-repo/semantics/openAccessinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article2022-08-29T00:00:00Zoai:scielo:S0718-915X2022000100145opendoar:2022-08-29T00:00falseopendoar:2022-08-29T00:00SciELO Chile - Agencia Nacional de Investigación y Desarrollofalse
dc.title.none.fl_str_mv Effect of aggregate size and polyethylene sheet curing on mechanical and microstructural properties of lightweight expanded clay aggregate concrete
title Effect of aggregate size and polyethylene sheet curing on mechanical and microstructural properties of lightweight expanded clay aggregate concrete
spellingShingle Effect of aggregate size and polyethylene sheet curing on mechanical and microstructural properties of lightweight expanded clay aggregate concrete
Karakurt,Cenk
expanded clay
internal curing
lightweight concrete
polyethylene sheet
title_short Effect of aggregate size and polyethylene sheet curing on mechanical and microstructural properties of lightweight expanded clay aggregate concrete
title_full Effect of aggregate size and polyethylene sheet curing on mechanical and microstructural properties of lightweight expanded clay aggregate concrete
title_fullStr Effect of aggregate size and polyethylene sheet curing on mechanical and microstructural properties of lightweight expanded clay aggregate concrete
title_full_unstemmed Effect of aggregate size and polyethylene sheet curing on mechanical and microstructural properties of lightweight expanded clay aggregate concrete
title_sort Effect of aggregate size and polyethylene sheet curing on mechanical and microstructural properties of lightweight expanded clay aggregate concrete
dc.creator.none.fl_str_mv Karakurt,Cenk
Toprak,Mehmet Uğur
Güneş,Osman
author Karakurt,Cenk
author_facet Karakurt,Cenk
Toprak,Mehmet Uğur
Güneş,Osman
author_role author
author2 Toprak,Mehmet Uğur
Güneş,Osman
author2_role author
author
dc.subject.none.fl_str_mv expanded clay
internal curing
lightweight concrete
polyethylene sheet
topic expanded clay
internal curing
lightweight concrete
polyethylene sheet
description Abstract: This study assessed the effect of lightweight expanded clay aggregate (LECA) grain size and curing with polyethylene concrete curing film (PCCF) on microstructure, interfacial transition zone (ITZ), and compressive strength of structural lightweight aggregate concrete (LWAC) produced with two different Dmax (16 or 22.4 mm). To this end, 2 series of normal weight aggregate concretes (NWAC) and 6 series of LWAC incorporating 40% by vol. unprewetted LECA having (0-3, 3-8, or 8-16 mm) grain sizes were evaluated by using unit weight, compressive strength tests at 1, 7, and 28 days and SEM-EDX observations. Preventing the moisture loss from fresh concrete through PCCF curing had positive effects on compressive strength up to 14 and 9% for 1 and 28 days respectively. Shell thickness of LECA considerably increased with the decrease in LECA grain size. Thus, the compressive strength of LECA and LWAC increased by the decrease in LECA grain size. LWAC containing 0-3 mm LECA, achieved up to 21% higher compressive strength to weight ratio compared with the NWAC with the aid of the pozzolanic reactivity of fine LECA particles.
publishDate 2022
dc.date.none.fl_str_mv 2022-01-01
dc.type.*.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2022000100145
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2022000100145
dc.language.none.fl_str_mv en
language_invalid_str_mv en
dc.relation.none.fl_str_mv 10.7764/rdlc.21.1.145.
dc.rights.none.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 Escuela de Construcción Civil, Pontificia Universidad Católica de Chile
publisher.none.fl_str_mv Escuela de Construcción Civil, Pontificia Universidad Católica de Chile
dc.source.none.fl_str_mv Revista de la construcción v.21 n.1 2022
reponame:SciELO Chile
instname:Agencia Nacional de Investigación y Desarrollo
instacron:ANID-SciELO Chile
instname_str Agencia Nacional de Investigación y Desarrollo
instacron_str ANID-SciELO Chile
institution ANID-SciELO Chile
reponame_str SciELO Chile
collection SciELO Chile
repository.name.fl_str_mv SciELO Chile - Agencia Nacional de Investigación y Desarrollo
repository.mail.fl_str_mv
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score 15,30478

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