Experimental assessment of the behavior of expanded glass lightweight reinforced concrete walls

Simple item page
dc.article.number104043
dc.catalogadorgrr
dc.contributor.authorLombardi, Renzo Alessandro
dc.contributor.authorJünemann Ureta, Rosita
dc.contributor.authorLópez Casanova, Mauricio Alejandro
dc.contributor.otherCEDEUS (Chile)
dc.date.accessioned2024-09-12T15:53:40Z
dc.date.available2024-09-12T15:53:40Z
dc.date.issued2022
dc.description.abstractStructural lightweight concrete (LWC) can significantly reduce the dead loads of reinforced concrete (RC) structures and therefore the associated seismic forces. A new LWC was made using expanded glass as lightweight aggregate (LWA), which is comparatively much lighter than conventional LWAs, and might lead to different performance in lightweight RC elements. An experimental study was conducted to evaluate the structural behavior of expanded glass LWC RC walls. Two types of RC walls were built and tested under cyclic displacement protocol: slender confined and squat unconfined walls. For each type of wall, four specimens were considered: two with LWCs with fc′ of 30 and 40 MPa (i.e., L30 and L40) and densities of 1200 and 1700 kg/m3, respectively; and two with normal weight concretes (NWC) with the same specified strengths acting as control specimens (i.e., N30 and N40) and a density of about 2400 kg/m3. These walls were analyzed in terms of yield drifts and strengths, maximum drifts and strengths, ductility and energy dissipation. Results show that slender confined walls made with L30 mixture showed reductions in ductility and energy dissipation of about 56 and 34%, respectively when compared to N30 specimens. Meanwhile, L40 specimens showed the same tendency, but with smaller reductions compared to N40 of about 36% of ductility and 10% of energy dissipation. In squat unconfined walls, a significant reduction of strength was observed for both types of LWCs, although a bigger difference was observed in L30 concrete. Overall, expanded glass LWC showed promising structural behavior, especially L40 mixture, which presented relatively small differences compared to its NWC counterpart and had only 70% of its unit weight.
dc.description.funderCIGIDEN
dc.description.funderCenter for Sustainable Urban Development
dc.description.funderDICTUC Laboratories
dc.description.funderNational Agency of Research and Development
dc.description.funderResearch Center for Integrated Disaster Risk Management
dc.description.funderFondef
dc.description.funderPontificia Universidad Católica de Chile
dc.description.funderCEDEUS
dc.format.extent24 páginas
dc.fuente.origenScopus
dc.identifier.doi10.1016/j.jobe.2022.104043
dc.identifier.eissn2352-7102
dc.identifier.scopusidSCOPUS_ID:85124331825
dc.identifier.urihttps://doi.org/10.1016/j.jobe.2022.104043
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/87857
dc.identifier.wosidWOS:000814205600004
dc.information.autorucEscuela de Ingeniería; Lombardi, Renzo Alessandro; S/I; 232593
dc.information.autorucEscuela de Ingeniería; Jünemann Ureta, Rosita; 0000-0001-8937-2609; 120220
dc.information.autorucEscuela de Ingeniería; López Casanova, Mauricio Alejandro; 0000-0002-8679-3659; 7202
dc.language.isoen
dc.nota.accesocontenido parcial
dc.publisherElsevier Ltd
dc.relation.ispartofJournal of Building Engineering
dc.revistaJournal of Building Engineering
dc.rightsacceso restringido
dc.subject.ddc620
dc.subject.deweyIngenieríaes_ES
dc.titleExperimental assessment of the behavior of expanded glass lightweight reinforced concrete walls
dc.typeartículo
dc.volumen49
sipa.codpersvinculados232593
sipa.codpersvinculados120220
sipa.codpersvinculados7202
sipa.trazabilidadSCOPUS;21-03-2022
Files
Collections
Artículos de revistas
CEDEUS