Effect of cationic polyelectrolytes addition in cement cohesion
Here is studied the variation in cohesion of cement main phase (C-S-H) as a result of cationic polyelectrolytes addition (quaternary amines spermine and norspermidine). Cohesion study was carried out by molecular simulation techniques (Monte Carlo) using a primitive model in a canonical ensemble (NV...
- Autores:
-
Zuluaga-Hernández, Edison Albert
Hoyos, Bibian A.
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2014
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/52526
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/52526
http://bdigital.unal.edu.co/46872/
- Palabra clave:
- cement cohesion
molecular simulation
cationic polyelectrolytes
osmotic pressure
primitive model.
- 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_abf2Zuluaga-Hernández, Edison Albertf042ea83-a9a4-4248-966e-eddbbca67c1a300Hoyos, Bibian A.dd6caf96-5ce4-49db-a5c9-c9d775584e6d3002019-06-29T14:38:01Z2019-06-29T14:38:01Z2014-12-16https://repositorio.unal.edu.co/handle/unal/52526http://bdigital.unal.edu.co/46872/Here is studied the variation in cohesion of cement main phase (C-S-H) as a result of cationic polyelectrolytes addition (quaternary amines spermine and norspermidine). Cohesion study was carried out by molecular simulation techniques (Monte Carlo) using a primitive model in a canonical ensemble (NVT). The proposed model takes into account the influence of ionic size of each particle and the addition of polyelectrolytes with different charge number and separation. The results obtained show that electrostatic interactions are responsible for the cohesion of the hardened cement. It was found that in absence of cationic polyelectrolytes, cohesion is lost when the C-S-H lamellae are at separations larger than 1 nm. Adding cationic polyelectrolytes generates a distribution of hydroxide ions around the polyelectrolyte charges, facilitates the distribution of calcium and sodium ions in the entire space between C-S-H surfaces; this allows the cohesive forces exist at greater distances of separation between the surfaces.application/pdfspaUniversidad Nacional de Colombia Sede Medellínhttp://revistas.unal.edu.co/index.php/dyna/article/view/41834Universidad Nacional de Colombia Revistas electrónicas UN DynaDynaDyna; Vol. 81, núm. 188 (2014); 222-228 DYNA; Vol. 81, núm. 188 (2014); 222-228 2346-2183 0012-7353Zuluaga-Hernández, Edison Albert and Hoyos, Bibian A. (2014) Effect of cationic polyelectrolytes addition in cement cohesion. Dyna; Vol. 81, núm. 188 (2014); 222-228 DYNA; Vol. 81, núm. 188 (2014); 222-228 2346-2183 0012-7353 .Effect of cationic polyelectrolytes addition in cement cohesionArtículo 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/ARTcement cohesionmolecular simulationcationic polyelectrolytesosmotic pressureprimitive model.ORIGINAL41834-234168-1-PB.pdfapplication/pdf993083https://repositorio.unal.edu.co/bitstream/unal/52526/1/41834-234168-1-PB.pdff2a33a6733f7ce22b27995f133e13672MD5141834-190782-1-SP.pdfapplication/pdf53472https://repositorio.unal.edu.co/bitstream/unal/52526/2/41834-190782-1-SP.pdf3ec65407e700855b20bcb4d9e43c8125MD52THUMBNAIL41834-234168-1-PB.pdf.jpg41834-234168-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg9475https://repositorio.unal.edu.co/bitstream/unal/52526/3/41834-234168-1-PB.pdf.jpg4bfa308a48ca05fbcad95098f544ea46MD5341834-190782-1-SP.pdf.jpg41834-190782-1-SP.pdf.jpgGenerated Thumbnailimage/jpeg7277https://repositorio.unal.edu.co/bitstream/unal/52526/4/41834-190782-1-SP.pdf.jpgb507477b5ebd809f9377bc703b745b3fMD54unal/52526oai:repositorio.unal.edu.co:unal/525262024-03-02 23:08:30.801Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co |
dc.title.spa.fl_str_mv |
Effect of cationic polyelectrolytes addition in cement cohesion |
title |
Effect of cationic polyelectrolytes addition in cement cohesion |
spellingShingle |
Effect of cationic polyelectrolytes addition in cement cohesion cement cohesion molecular simulation cationic polyelectrolytes osmotic pressure primitive model. |
title_short |
Effect of cationic polyelectrolytes addition in cement cohesion |
title_full |
Effect of cationic polyelectrolytes addition in cement cohesion |
title_fullStr |
Effect of cationic polyelectrolytes addition in cement cohesion |
title_full_unstemmed |
Effect of cationic polyelectrolytes addition in cement cohesion |
title_sort |
Effect of cationic polyelectrolytes addition in cement cohesion |
dc.creator.fl_str_mv |
Zuluaga-Hernández, Edison Albert Hoyos, Bibian A. |
dc.contributor.author.spa.fl_str_mv |
Zuluaga-Hernández, Edison Albert Hoyos, Bibian A. |
dc.subject.proposal.spa.fl_str_mv |
cement cohesion molecular simulation cationic polyelectrolytes osmotic pressure primitive model. |
topic |
cement cohesion molecular simulation cationic polyelectrolytes osmotic pressure primitive model. |
description |
Here is studied the variation in cohesion of cement main phase (C-S-H) as a result of cationic polyelectrolytes addition (quaternary amines spermine and norspermidine). Cohesion study was carried out by molecular simulation techniques (Monte Carlo) using a primitive model in a canonical ensemble (NVT). The proposed model takes into account the influence of ionic size of each particle and the addition of polyelectrolytes with different charge number and separation. The results obtained show that electrostatic interactions are responsible for the cohesion of the hardened cement. It was found that in absence of cationic polyelectrolytes, cohesion is lost when the C-S-H lamellae are at separations larger than 1 nm. Adding cationic polyelectrolytes generates a distribution of hydroxide ions around the polyelectrolyte charges, facilitates the distribution of calcium and sodium ions in the entire space between C-S-H surfaces; this allows the cohesive forces exist at greater distances of separation between the surfaces. |
publishDate |
2014 |
dc.date.issued.spa.fl_str_mv |
2014-12-16 |
dc.date.accessioned.spa.fl_str_mv |
2019-06-29T14:38:01Z |
dc.date.available.spa.fl_str_mv |
2019-06-29T14:38:01Z |
dc.type.spa.fl_str_mv |
Artículo de revista |
dc.type.coar.fl_str_mv |
http://purl.org/coar/resource_type/c_2df8fbb1 |
dc.type.driver.spa.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.version.spa.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.coar.spa.fl_str_mv |
http://purl.org/coar/resource_type/c_6501 |
dc.type.coarversion.spa.fl_str_mv |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
dc.type.content.spa.fl_str_mv |
Text |
dc.type.redcol.spa.fl_str_mv |
http://purl.org/redcol/resource_type/ART |
format |
http://purl.org/coar/resource_type/c_6501 |
status_str |
publishedVersion |
dc.identifier.uri.none.fl_str_mv |
https://repositorio.unal.edu.co/handle/unal/52526 |
dc.identifier.eprints.spa.fl_str_mv |
http://bdigital.unal.edu.co/46872/ |
url |
https://repositorio.unal.edu.co/handle/unal/52526 http://bdigital.unal.edu.co/46872/ |
dc.language.iso.spa.fl_str_mv |
spa |
language |
spa |
dc.relation.spa.fl_str_mv |
http://revistas.unal.edu.co/index.php/dyna/article/view/41834 |
dc.relation.ispartof.spa.fl_str_mv |
Universidad Nacional de Colombia Revistas electrónicas UN Dyna Dyna |
dc.relation.ispartofseries.none.fl_str_mv |
Dyna; Vol. 81, núm. 188 (2014); 222-228 DYNA; Vol. 81, núm. 188 (2014); 222-228 2346-2183 0012-7353 |
dc.relation.references.spa.fl_str_mv |
Zuluaga-Hernández, Edison Albert and Hoyos, Bibian A. (2014) Effect of cationic polyelectrolytes addition in cement cohesion. Dyna; Vol. 81, núm. 188 (2014); 222-228 DYNA; Vol. 81, núm. 188 (2014); 222-228 2346-2183 0012-7353 . |
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 |
dc.rights.uri.spa.fl_str_mv |
http://creativecommons.org/licenses/by-nc/4.0/ |
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 |
institution |
Universidad Nacional de Colombia |
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