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...
- 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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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 |
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Artículo de revista |
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http://purl.org/coar/resource_type/c_2df8fbb1 |
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info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
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http://purl.org/coar/resource_type/c_6501 |
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http://purl.org/coar/version/c_970fb48d4fbd8a85 |
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Text |
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publishedVersion |
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ISSN: 2346-2183 |
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https://repositorio.unal.edu.co/handle/unal/60516 |
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http://bdigital.unal.edu.co/58848/ |
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ISSN: 2346-2183 |
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spa |
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spa |
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https://revistas.unal.edu.co/index.php/dyna/article/view/55559 |
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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 |
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Derechos reservados - Universidad Nacional de Colombia |
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http://purl.org/coar/access_right/c_abf2 |
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Atribución-NoComercial 4.0 Internacional |
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http://creativecommons.org/licenses/by-nc/4.0/ |
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info:eu-repo/semantics/openAccess |
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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 |
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Universidad Nacional de Colombia (Sede Medellín). Facultad de Minas. |
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