The mechanical properties of Portland cement mortars blended with carbon nanotubes and nanosilica: A study by experimental design

The pozzolanic effect of nanosilica (NS) particles when combined with Multi Walled Carbon Nanotubes (MWCNT) was studied in Ca(OH)2 pastes and Portland cement mortars. Experimental design techniques were used to plan the experiments and identify the effect of the nanoparticles on the properties of th...

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Autores:
Mendoza-Reales, Oscar A.
Sierra Gallego, Germán
Tobón, Jorge I.
Tipo de recurso:
Article of journal
Fecha de publicación:
2016
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/60516
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/60516
http://bdigital.unal.edu.co/58848/
Palabra clave:
62 Ingeniería y operaciones afines / Engineering
Carbon nanotubes
nanosilica
hybrid effect
pozzolanic activity
strength
Nanotubos de carbono
nanosílice
efecto híbrido
actividad puzolánica
resistencia mecánica
Rights
openAccess
License
Atribución-NoComercial 4.0 Internacional
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oai_identifier_str oai:repositorio.unal.edu.co:unal/60516
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network_name_str Universidad Nacional de Colombia
repository_id_str
spelling Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Mendoza-Reales, Oscar A.e7739d88-4f09-4e7c-b913-d16ab0879993300Sierra Gallego, Germánd12d7e75-dfe4-4bb5-a2a1-de626f2a24b7300Tobón, Jorge I.481b6153-bb55-4f91-ae52-53f2561964053002019-07-02T18:29:59Z2019-07-02T18:29:59Z2016-07-01ISSN: 2346-2183https://repositorio.unal.edu.co/handle/unal/60516http://bdigital.unal.edu.co/58848/The pozzolanic effect of nanosilica (NS) particles when combined with Multi Walled Carbon Nanotubes (MWCNT) was studied in Ca(OH)2 pastes and Portland cement mortars. Experimental design techniques were used to plan the experiments and identify the effect of the nanoparticles on the properties of the cementing matrices by means of Analysis of Variance (ANOVA). Samples were prepared with different combinations of NS and MWCNT. Ca(OH)2 pastes were used to study the effect the nanoparticles had on the Calcium-Silicate-Hydrate (C-S-H) production. Portland cement mortars were used to study the effect of the nanoparticles on the compressive and flexural strength of the cementing matrices. We found that only NS had a significant effect on the C-S-H formation for up to 21 days of hydration, and that MWCNT did not present a positive effect on the mechanical strength of mortars due to the effects of reagglomeration.El efecto puzolánico de partículas de nanosílice (NS) combinadas con Nanotubos de Carbono de Pared Múltiple (MWCNT) fue estudiado en pastas de Ca(OH)2 y morteros de cemento Pórtland. Técnicas de diseño experimental fueron aplicadas para planear los experimentos e identificar el efecto de las nanopartículas sobre las propiedades de las matrices cementantes usando Análisis de Varianza (ANOVA). Se prepararon muestras con diferentes combinaciones de NS y MWCNT. Las pastas de Ca(OH)2 fueron usadas para estudiar el efecto de las naopartículas en la producción de Silicato de Calcio Hidratado (C-S-H), y los morteros de cemento Pórtland se usaron para estudiar el efecto de las nanopartículas en las resistencias a compresión y flexo-tracción de las matrices. Se encontró que solo la NS tuvo un efecto significativo sobre la producción de C-S-H hasta 21 días de hidratación, y que los MWCNT no presentaron un efecto positivo sobre las propiedades mecánicas de los morteros debido a efectos de reagomeración.application/pdfspaUniversidad Nacional de Colombia (Sede Medellín). Facultad de Minas.https://revistas.unal.edu.co/index.php/dyna/article/view/55559Universidad Nacional de Colombia Revistas electrónicas UN DynaDynaMendoza-Reales, Oscar A. and Sierra Gallego, Germán and Tobón, Jorge I. (2016) The mechanical properties of Portland cement mortars blended with carbon nanotubes and nanosilica: A study by experimental design. DYNA, 83 (198). pp. 136-141. ISSN 2346-218362 Ingeniería y operaciones afines / EngineeringCarbon nanotubesnanosilicahybrid effectpozzolanic activitystrengthNanotubos de carbononanosíliceefecto híbridoactividad puzolánicaresistencia mecánicaThe mechanical properties of Portland cement mortars blended with carbon nanotubes and nanosilica: A study by experimental designArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTORIGINAL55559-305217-2-PB.pdfapplication/pdf484581https://repositorio.unal.edu.co/bitstream/unal/60516/1/55559-305217-2-PB.pdf8f6d2d1f9bdcfd203cdcc4141cde5751MD51THUMBNAIL55559-305217-2-PB.pdf.jpg55559-305217-2-PB.pdf.jpgGenerated Thumbnailimage/jpeg10029https://repositorio.unal.edu.co/bitstream/unal/60516/2/55559-305217-2-PB.pdf.jpg57a1299b0c64e1a29a24b6192d731b55MD52unal/60516oai:repositorio.unal.edu.co:unal/605162024-04-13 23:10:50.59Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co
dc.title.spa.fl_str_mv The mechanical properties of Portland cement mortars blended with carbon nanotubes and nanosilica: A study by experimental design
title The mechanical properties of Portland cement mortars blended with carbon nanotubes and nanosilica: A study by experimental design
spellingShingle The mechanical properties of Portland cement mortars blended with carbon nanotubes and nanosilica: A study by experimental design
62 Ingeniería y operaciones afines / Engineering
Carbon nanotubes
nanosilica
hybrid effect
pozzolanic activity
strength
Nanotubos de carbono
nanosílice
efecto híbrido
actividad puzolánica
resistencia mecánica
title_short The mechanical properties of Portland cement mortars blended with carbon nanotubes and nanosilica: A study by experimental design
title_full The mechanical properties of Portland cement mortars blended with carbon nanotubes and nanosilica: A study by experimental design
title_fullStr The mechanical properties of Portland cement mortars blended with carbon nanotubes and nanosilica: A study by experimental design
title_full_unstemmed The mechanical properties of Portland cement mortars blended with carbon nanotubes and nanosilica: A study by experimental design
title_sort The mechanical properties of Portland cement mortars blended with carbon nanotubes and nanosilica: A study by experimental design
dc.creator.fl_str_mv Mendoza-Reales, Oscar A.
Sierra Gallego, Germán
Tobón, Jorge I.
dc.contributor.author.spa.fl_str_mv Mendoza-Reales, Oscar A.
Sierra Gallego, Germán
Tobón, Jorge I.
dc.subject.ddc.spa.fl_str_mv 62 Ingeniería y operaciones afines / Engineering
topic 62 Ingeniería y operaciones afines / Engineering
Carbon nanotubes
nanosilica
hybrid effect
pozzolanic activity
strength
Nanotubos de carbono
nanosílice
efecto híbrido
actividad puzolánica
resistencia mecánica
dc.subject.proposal.spa.fl_str_mv Carbon nanotubes
nanosilica
hybrid effect
pozzolanic activity
strength
Nanotubos de carbono
nanosílice
efecto híbrido
actividad puzolánica
resistencia mecánica
description The pozzolanic effect of nanosilica (NS) particles when combined with Multi Walled Carbon Nanotubes (MWCNT) was studied in Ca(OH)2 pastes and Portland cement mortars. Experimental design techniques were used to plan the experiments and identify the effect of the nanoparticles on the properties of the cementing matrices by means of Analysis of Variance (ANOVA). Samples were prepared with different combinations of NS and MWCNT. Ca(OH)2 pastes were used to study the effect the nanoparticles had on the Calcium-Silicate-Hydrate (C-S-H) production. Portland cement mortars were used to study the effect of the nanoparticles on the compressive and flexural strength of the cementing matrices. We found that only NS had a significant effect on the C-S-H formation for up to 21 days of hydration, and that MWCNT did not present a positive effect on the mechanical strength of mortars due to the effects of reagglomeration.
publishDate 2016
dc.date.issued.spa.fl_str_mv 2016-07-01
dc.date.accessioned.spa.fl_str_mv 2019-07-02T18:29:59Z
dc.date.available.spa.fl_str_mv 2019-07-02T18:29:59Z
dc.type.spa.fl_str_mv Artículo de revista
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dc.identifier.issn.spa.fl_str_mv ISSN: 2346-2183
dc.identifier.uri.none.fl_str_mv https://repositorio.unal.edu.co/handle/unal/60516
dc.identifier.eprints.spa.fl_str_mv http://bdigital.unal.edu.co/58848/
identifier_str_mv ISSN: 2346-2183
url https://repositorio.unal.edu.co/handle/unal/60516
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dc.language.iso.spa.fl_str_mv spa
language spa
dc.relation.spa.fl_str_mv https://revistas.unal.edu.co/index.php/dyna/article/view/55559
dc.relation.ispartof.spa.fl_str_mv Universidad Nacional de Colombia Revistas electrónicas UN Dyna
Dyna
dc.relation.references.spa.fl_str_mv Mendoza-Reales, Oscar A. and Sierra Gallego, Germán and Tobón, Jorge I. (2016) The mechanical properties of Portland cement mortars blended with carbon nanotubes and nanosilica: A study by experimental design. DYNA, 83 (198). pp. 136-141. ISSN 2346-2183
dc.rights.spa.fl_str_mv Derechos reservados - Universidad Nacional de Colombia
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.rights.license.spa.fl_str_mv Atribución-NoComercial 4.0 Internacional
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dc.rights.accessrights.spa.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv Atribución-NoComercial 4.0 Internacional
Derechos reservados - Universidad Nacional de Colombia
http://creativecommons.org/licenses/by-nc/4.0/
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.mimetype.spa.fl_str_mv application/pdf
dc.publisher.spa.fl_str_mv Universidad Nacional de Colombia (Sede Medellín). Facultad de Minas.
institution Universidad Nacional de Colombia
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