Characterization of test specimens produced in reduced size for X-ray microtomography (µ-CT) tests
Autor(a) principal: | |
---|---|
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=S1983-41952017000501025 |
Resumo: | Abstract The need to use reduced sample sizes, in order to attain improved spatial resolution in (µ-CT) tests applied in Portland cement composites, makes researchers perform the fractionation of materials to obtain samples with dimensions compatible with the capacity of the scanning equipment, which might cause alterations in the microstructure under analysis. Therefore, a test specimen (TS) with dimensions compatible with the scanning capacity of a microtomography system that operates with an X-ray tube and voltage ranging from 20 to 100 kV was proposed. Axial compression strength tests were made and their total porosity was assessed by an apparent density and solid fraction density ratio, which were obtained by means of mercury and helium pycnometry and µ-CT technique, respectively. The adoption of that TS has shown to be viable for providing a sample with a higher level of representation. |
id |
IBRACON-1_1b43467612889ac3ebcfeb1cc6bee938 |
---|---|
oai_identifier_str |
oai:scielo:S1983-41952017000501025 |
network_acronym_str |
IBRACON-1 |
network_name_str |
Revista IBRACON de Estruturas e Materiais |
repository_id_str |
|
spelling |
Characterization of test specimens produced in reduced size for X-ray microtomography (µ-CT) testsX-ray microtomography[/kwd], [kwd]fractionation of samples[/kwd], [kwd]test specimen[/kwd], [kwd]pycnometry[/kwd], [kwd]pore structureAbstract The need to use reduced sample sizes, in order to attain improved spatial resolution in (µ-CT) tests applied in Portland cement composites, makes researchers perform the fractionation of materials to obtain samples with dimensions compatible with the capacity of the scanning equipment, which might cause alterations in the microstructure under analysis. Therefore, a test specimen (TS) with dimensions compatible with the scanning capacity of a microtomography system that operates with an X-ray tube and voltage ranging from 20 to 100 kV was proposed. Axial compression strength tests were made and their total porosity was assessed by an apparent density and solid fraction density ratio, which were obtained by means of mercury and helium pycnometry and µ-CT technique, respectively. The adoption of that TS has shown to be viable for providing a sample with a higher level of representation.IBRACON - Instituto Brasileiro do Concreto2017-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952017000501025Revista IBRACON de Estruturas e Materiais v.10 n.5 2017reponame:Revista IBRACON de Estruturas e Materiaisinstname:Instituto Brasileiro do Concreto (IBRACON)instacron:IBRACON10.1590/s1983-41952017000500005info:eu-repo/semantics/openAccessBERNARDES,E. E.MAGALHÃES,A. G. DEVASCONCELOS,W. L.CARRASCO,E. V. M.NUNES,E. H. M.LIMA,L. B. DEeng2017-11-07T00:00:00Zoai:scielo:S1983-41952017000501025Revistahttp://www.revistas.ibracon.org.br/index.php/riemhttps://old.scielo.br/oai/scielo-oai.phpeditores.riem@gmail.com||arlene@ibracon.org.br1983-41951983-4195opendoar:2017-11-07T00:00Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)false |
dc.title.none.fl_str_mv |
Characterization of test specimens produced in reduced size for X-ray microtomography (µ-CT) tests |
title |
Characterization of test specimens produced in reduced size for X-ray microtomography (µ-CT) tests |
spellingShingle |
Characterization of test specimens produced in reduced size for X-ray microtomography (µ-CT) tests BERNARDES,E. E. X-ray microtomography[/kwd], [kwd]fractionation of samples[/kwd], [kwd]test specimen[/kwd], [kwd]pycnometry[/kwd], [kwd]pore structure |
title_short |
Characterization of test specimens produced in reduced size for X-ray microtomography (µ-CT) tests |
title_full |
Characterization of test specimens produced in reduced size for X-ray microtomography (µ-CT) tests |
title_fullStr |
Characterization of test specimens produced in reduced size for X-ray microtomography (µ-CT) tests |
title_full_unstemmed |
Characterization of test specimens produced in reduced size for X-ray microtomography (µ-CT) tests |
title_sort |
Characterization of test specimens produced in reduced size for X-ray microtomography (µ-CT) tests |
author |
BERNARDES,E. E. |
author_facet |
BERNARDES,E. E. MAGALHÃES,A. G. DE VASCONCELOS,W. L. CARRASCO,E. V. M. NUNES,E. H. M. LIMA,L. B. DE |
author_role |
author |
author2 |
MAGALHÃES,A. G. DE VASCONCELOS,W. L. CARRASCO,E. V. M. NUNES,E. H. M. LIMA,L. B. DE |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
BERNARDES,E. E. MAGALHÃES,A. G. DE VASCONCELOS,W. L. CARRASCO,E. V. M. NUNES,E. H. M. LIMA,L. B. DE |
dc.subject.por.fl_str_mv |
X-ray microtomography[/kwd], [kwd]fractionation of samples[/kwd], [kwd]test specimen[/kwd], [kwd]pycnometry[/kwd], [kwd]pore structure |
topic |
X-ray microtomography[/kwd], [kwd]fractionation of samples[/kwd], [kwd]test specimen[/kwd], [kwd]pycnometry[/kwd], [kwd]pore structure |
description |
Abstract The need to use reduced sample sizes, in order to attain improved spatial resolution in (µ-CT) tests applied in Portland cement composites, makes researchers perform the fractionation of materials to obtain samples with dimensions compatible with the capacity of the scanning equipment, which might cause alterations in the microstructure under analysis. Therefore, a test specimen (TS) with dimensions compatible with the scanning capacity of a microtomography system that operates with an X-ray tube and voltage ranging from 20 to 100 kV was proposed. Axial compression strength tests were made and their total porosity was assessed by an apparent density and solid fraction density ratio, which were obtained by means of mercury and helium pycnometry and µ-CT technique, respectively. The adoption of that TS has shown to be viable for providing a sample with a higher level of representation. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-09-01 |
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=S1983-41952017000501025 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952017000501025 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s1983-41952017000500005 |
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.5 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_ |
1754193605229019136 |