Tools for assessing damage in concrete affected by AAR coming from fine and coarse aggregates
Autor(a) principal: | |
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Data de Publicação: | 2017 |
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=S1983-41952017000100084 |
Resumo: | Abstract Over the last few years, comprehensive management programs for the diagnosis and prognosis of alkali-aggregate reaction (AAR) in aging concrete structures were developed in North America, based on a series of laboratory test procedures. Although promising, these lab-procedures presented several parameters whose impacts were not completely understood, which significantly reduced their applicability for the appraisal of deteriorated concrete structures in service. In this context, it has been suggested that two lab-tools, the Stiffness Damage Test (SDT) and the Damage Rating Index (DRI) could reliably assess the condition of concrete affected by AAR. This paper presents the condition assessment of 25, 35 and 45 MPa AAR affected concrete specimens incorporating fine and coarse reactive aggregates and presenting different distress degrees (i.e. expansion levels from 0.05 to 0.30%) through the use of an innovative multi-level approach. Results show that both SDT and DRI are suitable for assessing damage in AAR affected concrete through their output parameters. Yet, they present a complementary character, which illustrates the need for a multi-level approach. |
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Tools for assessing damage in concrete affected by AAR coming from fine and coarse aggregatesstiffness damage testdamage rating indexcondition assessmentmulti-level approachalkali-aggregate reaction (AAR)Abstract Over the last few years, comprehensive management programs for the diagnosis and prognosis of alkali-aggregate reaction (AAR) in aging concrete structures were developed in North America, based on a series of laboratory test procedures. Although promising, these lab-procedures presented several parameters whose impacts were not completely understood, which significantly reduced their applicability for the appraisal of deteriorated concrete structures in service. In this context, it has been suggested that two lab-tools, the Stiffness Damage Test (SDT) and the Damage Rating Index (DRI) could reliably assess the condition of concrete affected by AAR. This paper presents the condition assessment of 25, 35 and 45 MPa AAR affected concrete specimens incorporating fine and coarse reactive aggregates and presenting different distress degrees (i.e. expansion levels from 0.05 to 0.30%) through the use of an innovative multi-level approach. Results show that both SDT and DRI are suitable for assessing damage in AAR affected concrete through their output parameters. Yet, they present a complementary character, which illustrates the need for a multi-level approach.IBRACON - Instituto Brasileiro do Concreto2017-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952017000100084Revista IBRACON de Estruturas e Materiais v.10 n.1 2017reponame:Revista IBRACON de Estruturas e Materiaisinstname:Instituto Brasileiro do Concreto (IBRACON)instacron:IBRACON10.1590/s1983-41952017000100005info:eu-repo/semantics/openAccessSanchez,L. F. M.Fournier,B.Jolin,M.Bastien,J.Mitchell,D.eng2017-04-03T00:00:00Zoai:scielo:S1983-41952017000100084Revistahttp://www.revistas.ibracon.org.br/index.php/riemhttps://old.scielo.br/oai/scielo-oai.phpeditores.riem@gmail.com||arlene@ibracon.org.br1983-41951983-4195opendoar:2017-04-03T00:00Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)false |
dc.title.none.fl_str_mv |
Tools for assessing damage in concrete affected by AAR coming from fine and coarse aggregates |
title |
Tools for assessing damage in concrete affected by AAR coming from fine and coarse aggregates |
spellingShingle |
Tools for assessing damage in concrete affected by AAR coming from fine and coarse aggregates Sanchez,L. F. M. stiffness damage test damage rating index condition assessment multi-level approach alkali-aggregate reaction (AAR) |
title_short |
Tools for assessing damage in concrete affected by AAR coming from fine and coarse aggregates |
title_full |
Tools for assessing damage in concrete affected by AAR coming from fine and coarse aggregates |
title_fullStr |
Tools for assessing damage in concrete affected by AAR coming from fine and coarse aggregates |
title_full_unstemmed |
Tools for assessing damage in concrete affected by AAR coming from fine and coarse aggregates |
title_sort |
Tools for assessing damage in concrete affected by AAR coming from fine and coarse aggregates |
author |
Sanchez,L. F. M. |
author_facet |
Sanchez,L. F. M. Fournier,B. Jolin,M. Bastien,J. Mitchell,D. |
author_role |
author |
author2 |
Fournier,B. Jolin,M. Bastien,J. Mitchell,D. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Sanchez,L. F. M. Fournier,B. Jolin,M. Bastien,J. Mitchell,D. |
dc.subject.por.fl_str_mv |
stiffness damage test damage rating index condition assessment multi-level approach alkali-aggregate reaction (AAR) |
topic |
stiffness damage test damage rating index condition assessment multi-level approach alkali-aggregate reaction (AAR) |
description |
Abstract Over the last few years, comprehensive management programs for the diagnosis and prognosis of alkali-aggregate reaction (AAR) in aging concrete structures were developed in North America, based on a series of laboratory test procedures. Although promising, these lab-procedures presented several parameters whose impacts were not completely understood, which significantly reduced their applicability for the appraisal of deteriorated concrete structures in service. In this context, it has been suggested that two lab-tools, the Stiffness Damage Test (SDT) and the Damage Rating Index (DRI) could reliably assess the condition of concrete affected by AAR. This paper presents the condition assessment of 25, 35 and 45 MPa AAR affected concrete specimens incorporating fine and coarse reactive aggregates and presenting different distress degrees (i.e. expansion levels from 0.05 to 0.30%) through the use of an innovative multi-level approach. Results show that both SDT and DRI are suitable for assessing damage in AAR affected concrete through their output parameters. Yet, they present a complementary character, which illustrates the need for a multi-level approach. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-02-01 |
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=S1983-41952017000100084 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952017000100084 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s1983-41952017000100005 |
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.10 n.1 2017 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_ |
1754193605168201728 |