Experimental Study on Mechanics and Pressure Sensitivity of Carbon Fiber RPC
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Materials research (São Carlos. Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000100220 |
Resumo: | To study the mechanical properties and conductivity enhancement effect of carbon fiber (CF) on reactive powder concrete (RPC), this work systematically investigated the changes in the compressive strength, elastic modulus, Poisson’s ratio, and pressure sensitivity of RPC under standard curing system. With age, CF content, and pressure sensitivity as parameters, the micro-method for scanning mechanism was used to study the effect mechanism of CF content on RPC. The experimental results showed that with the increase of carbon fiber content, poisson's ratio and compressive strength of carbon fiber RPC tended to increase first and then decrease. The elastic modulus decreased first and then increased, and 0.75% was the turning point of fiber content. With the increase of carbon fiber content, the resistivity decreases gradually, while the resistivity change rate (FCR) shows a trend of increasing and decreasing first, and there is a strong corresponding relationship between strain and FCR.When the CF content is 0.75%, the maximum FCR is 38.8%, which is increased by 33%. the CF RPC with a CF content of 0.75% is the highest stress and strain sensitivity group, reaching 2.05%/Mpa and 513.7, respectively. |
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Materials research (São Carlos. Online) |
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Experimental Study on Mechanics and Pressure Sensitivity of Carbon Fiber RPCReactive powder concreteSmart concreteCarbon fiberPressure sensitivityMechanical propertiesTo study the mechanical properties and conductivity enhancement effect of carbon fiber (CF) on reactive powder concrete (RPC), this work systematically investigated the changes in the compressive strength, elastic modulus, Poisson’s ratio, and pressure sensitivity of RPC under standard curing system. With age, CF content, and pressure sensitivity as parameters, the micro-method for scanning mechanism was used to study the effect mechanism of CF content on RPC. The experimental results showed that with the increase of carbon fiber content, poisson's ratio and compressive strength of carbon fiber RPC tended to increase first and then decrease. The elastic modulus decreased first and then increased, and 0.75% was the turning point of fiber content. With the increase of carbon fiber content, the resistivity decreases gradually, while the resistivity change rate (FCR) shows a trend of increasing and decreasing first, and there is a strong corresponding relationship between strain and FCR.When the CF content is 0.75%, the maximum FCR is 38.8%, which is increased by 33%. the CF RPC with a CF content of 0.75% is the highest stress and strain sensitivity group, reaching 2.05%/Mpa and 513.7, respectively.ABM, ABC, ABPol2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000100220Materials Research v.24 n.1 2021reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2020-0341info:eu-repo/semantics/openAccessGe,LincaiZhang,XuejianJin,XiaofeiZhang,YunlongWang,Jingeng2021-02-22T00:00:00Zoai:scielo:S1516-14392021000100220Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2021-02-22T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
Experimental Study on Mechanics and Pressure Sensitivity of Carbon Fiber RPC |
title |
Experimental Study on Mechanics and Pressure Sensitivity of Carbon Fiber RPC |
spellingShingle |
Experimental Study on Mechanics and Pressure Sensitivity of Carbon Fiber RPC Ge,Lincai Reactive powder concrete Smart concrete Carbon fiber Pressure sensitivity Mechanical properties |
title_short |
Experimental Study on Mechanics and Pressure Sensitivity of Carbon Fiber RPC |
title_full |
Experimental Study on Mechanics and Pressure Sensitivity of Carbon Fiber RPC |
title_fullStr |
Experimental Study on Mechanics and Pressure Sensitivity of Carbon Fiber RPC |
title_full_unstemmed |
Experimental Study on Mechanics and Pressure Sensitivity of Carbon Fiber RPC |
title_sort |
Experimental Study on Mechanics and Pressure Sensitivity of Carbon Fiber RPC |
author |
Ge,Lincai |
author_facet |
Ge,Lincai Zhang,Xuejian Jin,Xiaofei Zhang,Yunlong Wang,Jing |
author_role |
author |
author2 |
Zhang,Xuejian Jin,Xiaofei Zhang,Yunlong Wang,Jing |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Ge,Lincai Zhang,Xuejian Jin,Xiaofei Zhang,Yunlong Wang,Jing |
dc.subject.por.fl_str_mv |
Reactive powder concrete Smart concrete Carbon fiber Pressure sensitivity Mechanical properties |
topic |
Reactive powder concrete Smart concrete Carbon fiber Pressure sensitivity Mechanical properties |
description |
To study the mechanical properties and conductivity enhancement effect of carbon fiber (CF) on reactive powder concrete (RPC), this work systematically investigated the changes in the compressive strength, elastic modulus, Poisson’s ratio, and pressure sensitivity of RPC under standard curing system. With age, CF content, and pressure sensitivity as parameters, the micro-method for scanning mechanism was used to study the effect mechanism of CF content on RPC. The experimental results showed that with the increase of carbon fiber content, poisson's ratio and compressive strength of carbon fiber RPC tended to increase first and then decrease. The elastic modulus decreased first and then increased, and 0.75% was the turning point of fiber content. With the increase of carbon fiber content, the resistivity decreases gradually, while the resistivity change rate (FCR) shows a trend of increasing and decreasing first, and there is a strong corresponding relationship between strain and FCR.When the CF content is 0.75%, the maximum FCR is 38.8%, which is increased by 33%. the CF RPC with a CF content of 0.75% is the highest stress and strain sensitivity group, reaching 2.05%/Mpa and 513.7, respectively. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-01 |
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=S1516-14392021000100220 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000100220 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1980-5373-mr-2020-0341 |
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 |
ABM, ABC, ABPol |
publisher.none.fl_str_mv |
ABM, ABC, ABPol |
dc.source.none.fl_str_mv |
Materials Research v.24 n.1 2021 reponame:Materials research (São Carlos. Online) instname:Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL |
instname_str |
Universidade Federal de São Carlos (UFSCAR) |
instacron_str |
ABM ABC ABPOL |
institution |
ABM ABC ABPOL |
reponame_str |
Materials research (São Carlos. Online) |
collection |
Materials research (São Carlos. Online) |
repository.name.fl_str_mv |
Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR) |
repository.mail.fl_str_mv |
dedz@power.ufscar.br |
_version_ |
1754212678143836160 |