Water migration in unsaturated partially hydrophobic soils

This article presents new insights into effects of hydrophobic particles on water migration in fine graded soils. The experimental setup for this study uses a column of soil instrumented with sensors that allows direct measurements of soil water content at different heights of the column during capi...

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Autores:
Orozco Ardila, Luisa Fernanda
Tipo de recurso:
Fecha de publicación:
2017
Institución:
Universidad de los Andes
Repositorio:
Séneca: repositorio Uniandes
Idioma:
eng
OAI Identifier:
oai:repositorio.uniandes.edu.co:1992/13737
Acceso en línea:
http://hdl.handle.net/1992/13737
Palabra clave:
Suelos - Absorción y adsorción - Investigaciones
Permeabilidad de suelos - Investigaciones
Agentes tensoactivos - Investigaciones
Ingeniería
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openAccess
License
https://repositorio.uniandes.edu.co/static/pdf/aceptacion_uso_es.pdf
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spelling Al consultar y hacer uso de este recurso, está aceptando las condiciones de uso establecidas por los autores.https://repositorio.uniandes.edu.co/static/pdf/aceptacion_uso_es.pdfinfo:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Caicedo Hormaza, Bernardovirtual::2793-1Orozco Ardila, Luisa Fernanda2c538e31-9892-46c1-ae98-6e5974f8c2165002018-09-28T10:51:57Z2018-09-28T10:51:57Z2017http://hdl.handle.net/1992/13737u729181.pdfinstname:Universidad de los Andesreponame:Repositorio Institucional Sénecarepourl:https://repositorio.uniandes.edu.co/This article presents new insights into effects of hydrophobic particles on water migration in fine graded soils. The experimental setup for this study uses a column of soil instrumented with sensors that allows direct measurements of soil water content at different heights of the column during capillary rise, infiltration under imposed pressure and drainage. To precisely determine the proportion of hydrophobic particles the fine grained soil was mixed with microparticles of Teflon (PTFE). The water retention curve was measured for mixtures with three different percentages of hydrophobic particles: 0%, 2%, and 5% by weight. In addltion, the water repulsion curve of the PTFE particles was measured using a water intrusion test. This test showed high water repellency that modifies the unsaturated characteristics of the mixtures. Results of this study show a huge effect of hydrophobic particles on capillary rise, but water repellency decreases when pressure is imposed and becomes relevant again during the drainage process. This study provides a new survey that could be useful for understanding the benefits and limitations of soil treatments with hydrophobic chemical products.Magíster en Ingeniería CivilMaestría15 hojasapplication/pdfengUniandesMaestría en Ingeniería CivilFacultad de IngenieríaDepartamento de Ingeniería Civil y Ambientalinstname:Universidad de los Andesreponame:Repositorio Institucional SénecaWater migration in unsaturated partially hydrophobic soilsTrabajo de grado - Maestríainfo:eu-repo/semantics/masterThesishttp://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/TMSuelos - Absorción y adsorción - InvestigacionesPermeabilidad de suelos - InvestigacionesAgentes tensoactivos - InvestigacionesIngenieríaPublicationhttps://scholar.google.es/citations?user=9Mm7xv4AAAAJvirtual::2793-1https://scienti.minciencias.gov.co/cvlac/visualizador/generarCurriculoCv.do?cod_rh=0000246379virtual::2793-176fcc284-15ff-46ea-8bd7-c7f7cf3cb821virtual::2793-176fcc284-15ff-46ea-8bd7-c7f7cf3cb821virtual::2793-1THUMBNAILu729181.pdf.jpgu729181.pdf.jpgIM Thumbnailimage/jpeg21792https://repositorio.uniandes.edu.co/bitstreams/a5b7b65a-a243-4538-88c6-c4535c37ee3f/downloadb16461ef2f8383cdb050bc4345b2579eMD55ORIGINALu729181.pdfapplication/pdf1424579https://repositorio.uniandes.edu.co/bitstreams/cf70dbf6-3ef6-4875-9c61-af815f828231/downloadd83b5e06deb570041ae6d60652b60c57MD51TEXTu729181.pdf.txtu729181.pdf.txtExtracted texttext/plain25845https://repositorio.uniandes.edu.co/bitstreams/561d987b-e052-4cb3-8275-667e52bf69b3/downloadc7a4e3a32ef849091b7ca3ae66e78b8eMD541992/13737oai:repositorio.uniandes.edu.co:1992/137372024-03-13 12:17:03.979https://repositorio.uniandes.edu.co/static/pdf/aceptacion_uso_es.pdfopen.accesshttps://repositorio.uniandes.edu.coRepositorio institucional Sénecaadminrepositorio@uniandes.edu.co
dc.title.es_CO.fl_str_mv Water migration in unsaturated partially hydrophobic soils
title Water migration in unsaturated partially hydrophobic soils
spellingShingle Water migration in unsaturated partially hydrophobic soils
Suelos - Absorción y adsorción - Investigaciones
Permeabilidad de suelos - Investigaciones
Agentes tensoactivos - Investigaciones
Ingeniería
title_short Water migration in unsaturated partially hydrophobic soils
title_full Water migration in unsaturated partially hydrophobic soils
title_fullStr Water migration in unsaturated partially hydrophobic soils
title_full_unstemmed Water migration in unsaturated partially hydrophobic soils
title_sort Water migration in unsaturated partially hydrophobic soils
dc.creator.fl_str_mv Orozco Ardila, Luisa Fernanda
dc.contributor.advisor.none.fl_str_mv Caicedo Hormaza, Bernardo
dc.contributor.author.none.fl_str_mv Orozco Ardila, Luisa Fernanda
dc.subject.keyword.es_CO.fl_str_mv Suelos - Absorción y adsorción - Investigaciones
Permeabilidad de suelos - Investigaciones
Agentes tensoactivos - Investigaciones
topic Suelos - Absorción y adsorción - Investigaciones
Permeabilidad de suelos - Investigaciones
Agentes tensoactivos - Investigaciones
Ingeniería
dc.subject.themes.none.fl_str_mv Ingeniería
description This article presents new insights into effects of hydrophobic particles on water migration in fine graded soils. The experimental setup for this study uses a column of soil instrumented with sensors that allows direct measurements of soil water content at different heights of the column during capillary rise, infiltration under imposed pressure and drainage. To precisely determine the proportion of hydrophobic particles the fine grained soil was mixed with microparticles of Teflon (PTFE). The water retention curve was measured for mixtures with three different percentages of hydrophobic particles: 0%, 2%, and 5% by weight. In addltion, the water repulsion curve of the PTFE particles was measured using a water intrusion test. This test showed high water repellency that modifies the unsaturated characteristics of the mixtures. Results of this study show a huge effect of hydrophobic particles on capillary rise, but water repellency decreases when pressure is imposed and becomes relevant again during the drainage process. This study provides a new survey that could be useful for understanding the benefits and limitations of soil treatments with hydrophobic chemical products.
publishDate 2017
dc.date.issued.none.fl_str_mv 2017
dc.date.accessioned.none.fl_str_mv 2018-09-28T10:51:57Z
dc.date.available.none.fl_str_mv 2018-09-28T10:51:57Z
dc.type.spa.fl_str_mv Trabajo de grado - Maestría
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dc.language.iso.es_CO.fl_str_mv eng
language eng
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dc.format.extent.es_CO.fl_str_mv 15 hojas
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dc.publisher.none.fl_str_mv Uniandes
dc.publisher.program.es_CO.fl_str_mv Maestría en Ingeniería Civil
dc.publisher.faculty.es_CO.fl_str_mv Facultad de Ingeniería
dc.publisher.department.es_CO.fl_str_mv Departamento de Ingeniería Civil y Ambiental
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