Tensile Behaviour and Durability Issues of Engineered Cementitious Composites with Rice Husk Ash

Detalhes bibliográficos
Autor(a) principal: Righi,Débora Pedroso
Data de Publicação: 2017
Outros Autores: Costa,Fernanda Bianchi P. da, Graeff,Ângela Gaio, Silva Filho,Luiz Carlos Pinto da
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Matéria (Rio de Janeiro. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762017000200516
Resumo: ABSTRACT The Engineered Cementitious Composites (ECC) is a special type of High Performance Fibre Reinforced Cementitious Composite (HPFRCC) characterized by a high tensile ductility with a 2% maximum volume of micro fibres. ECC has a tensile strain-hardening performance that leads to multiple cracking behaviour, thus providing the high ductility to the concrete. One of the main applications of ECC is as structural reinforcement in the construction or rehabilitation of rigid and flexible pavements. In order to adapt the ECC to the Brazilian environment, polypropylene fibres have been used instead to PVA fibres. Moreover, rice husk ash (RHA) has also been used as a partial replacement to cement, aiming to produce an environmentally friendly and a more economically viable version of the ECC. This work presents the results obtained for ECC mixtures containing 10%, 20% and 30% (by volume) of non-processed rice husk ash, as a replacement to cement. An experimental study has been carried out to investigate the tensile behavior and durability issues of these ECCs. The results indicate that the use of RHA is technically viable and that the replacement of 30% cement by RHA leads to the most promising performance in terms of high ductility, resistance to crack propagation, decrease in the water absorption and voids content and heat at hydration.
id RLAM-1_f8b9583acb2ae4501c3e6ef445063e5b
oai_identifier_str oai:scielo:S1517-70762017000200516
network_acronym_str RLAM-1
network_name_str Matéria (Rio de Janeiro. Online)
repository_id_str
spelling Tensile Behaviour and Durability Issues of Engineered Cementitious Composites with Rice Husk AshEngineered Cementitious CompositesRice Husk AshMechanical behaviorDurabilityABSTRACT The Engineered Cementitious Composites (ECC) is a special type of High Performance Fibre Reinforced Cementitious Composite (HPFRCC) characterized by a high tensile ductility with a 2% maximum volume of micro fibres. ECC has a tensile strain-hardening performance that leads to multiple cracking behaviour, thus providing the high ductility to the concrete. One of the main applications of ECC is as structural reinforcement in the construction or rehabilitation of rigid and flexible pavements. In order to adapt the ECC to the Brazilian environment, polypropylene fibres have been used instead to PVA fibres. Moreover, rice husk ash (RHA) has also been used as a partial replacement to cement, aiming to produce an environmentally friendly and a more economically viable version of the ECC. This work presents the results obtained for ECC mixtures containing 10%, 20% and 30% (by volume) of non-processed rice husk ash, as a replacement to cement. An experimental study has been carried out to investigate the tensile behavior and durability issues of these ECCs. The results indicate that the use of RHA is technically viable and that the replacement of 30% cement by RHA leads to the most promising performance in terms of high ductility, resistance to crack propagation, decrease in the water absorption and voids content and heat at hydration.Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiroem cooperação com a Associação Brasileira do Hidrogênio, ABH22017-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762017000200516Matéria (Rio de Janeiro) v.22 n.2 2017reponame:Matéria (Rio de Janeiro. Online)instname:Matéria (Rio de Janeiro. Online)instacron:RLAM10.1590/s1517-707620170002.0182info:eu-repo/semantics/openAccessRighi,Débora PedrosoCosta,Fernanda Bianchi P. daGraeff,Ângela GaioSilva Filho,Luiz Carlos Pinto daeng2017-09-13T00:00:00Zoai:scielo:S1517-70762017000200516Revistahttp://www.materia.coppe.ufrj.br/https://old.scielo.br/oai/scielo-oai.php||materia@labh2.coppe.ufrj.br1517-70761517-7076opendoar:2017-09-13T00:00Matéria (Rio de Janeiro. Online) - Matéria (Rio de Janeiro. Online)false
dc.title.none.fl_str_mv Tensile Behaviour and Durability Issues of Engineered Cementitious Composites with Rice Husk Ash
title Tensile Behaviour and Durability Issues of Engineered Cementitious Composites with Rice Husk Ash
spellingShingle Tensile Behaviour and Durability Issues of Engineered Cementitious Composites with Rice Husk Ash
Righi,Débora Pedroso
Engineered Cementitious Composites
Rice Husk Ash
Mechanical behavior
Durability
title_short Tensile Behaviour and Durability Issues of Engineered Cementitious Composites with Rice Husk Ash
title_full Tensile Behaviour and Durability Issues of Engineered Cementitious Composites with Rice Husk Ash
title_fullStr Tensile Behaviour and Durability Issues of Engineered Cementitious Composites with Rice Husk Ash
title_full_unstemmed Tensile Behaviour and Durability Issues of Engineered Cementitious Composites with Rice Husk Ash
title_sort Tensile Behaviour and Durability Issues of Engineered Cementitious Composites with Rice Husk Ash
author Righi,Débora Pedroso
author_facet Righi,Débora Pedroso
Costa,Fernanda Bianchi P. da
Graeff,Ângela Gaio
Silva Filho,Luiz Carlos Pinto da
author_role author
author2 Costa,Fernanda Bianchi P. da
Graeff,Ângela Gaio
Silva Filho,Luiz Carlos Pinto da
author2_role author
author
author
dc.contributor.author.fl_str_mv Righi,Débora Pedroso
Costa,Fernanda Bianchi P. da
Graeff,Ângela Gaio
Silva Filho,Luiz Carlos Pinto da
dc.subject.por.fl_str_mv Engineered Cementitious Composites
Rice Husk Ash
Mechanical behavior
Durability
topic Engineered Cementitious Composites
Rice Husk Ash
Mechanical behavior
Durability
description ABSTRACT The Engineered Cementitious Composites (ECC) is a special type of High Performance Fibre Reinforced Cementitious Composite (HPFRCC) characterized by a high tensile ductility with a 2% maximum volume of micro fibres. ECC has a tensile strain-hardening performance that leads to multiple cracking behaviour, thus providing the high ductility to the concrete. One of the main applications of ECC is as structural reinforcement in the construction or rehabilitation of rigid and flexible pavements. In order to adapt the ECC to the Brazilian environment, polypropylene fibres have been used instead to PVA fibres. Moreover, rice husk ash (RHA) has also been used as a partial replacement to cement, aiming to produce an environmentally friendly and a more economically viable version of the ECC. This work presents the results obtained for ECC mixtures containing 10%, 20% and 30% (by volume) of non-processed rice husk ash, as a replacement to cement. An experimental study has been carried out to investigate the tensile behavior and durability issues of these ECCs. The results indicate that the use of RHA is technically viable and that the replacement of 30% cement by RHA leads to the most promising performance in terms of high ductility, resistance to crack propagation, decrease in the water absorption and voids content and heat at hydration.
publishDate 2017
dc.date.none.fl_str_mv 2017-01-01
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=S1517-70762017000200516
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762017000200516
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/s1517-707620170002.0182
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 Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro
em cooperação com a Associação Brasileira do Hidrogênio, ABH2
publisher.none.fl_str_mv Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro
em cooperação com a Associação Brasileira do Hidrogênio, ABH2
dc.source.none.fl_str_mv Matéria (Rio de Janeiro) v.22 n.2 2017
reponame:Matéria (Rio de Janeiro. Online)
instname:Matéria (Rio de Janeiro. Online)
instacron:RLAM
instname_str Matéria (Rio de Janeiro. Online)
instacron_str RLAM
institution RLAM
reponame_str Matéria (Rio de Janeiro. Online)
collection Matéria (Rio de Janeiro. Online)
repository.name.fl_str_mv Matéria (Rio de Janeiro. Online) - Matéria (Rio de Janeiro. Online)
repository.mail.fl_str_mv ||materia@labh2.coppe.ufrj.br
_version_ 1752126689769422848