Hydraulic diffusivity of different concrete mixtures based on sorptivity and moisture concentration profiles
Unsaturated flow in porous media theory relates hydraulic diffusivity with water content assuming an exponential or power dependence on water saturation. Water sorptivity, a porous material property, describes the capillary absorption rate of a porous material exposed to a water source. It is an imp...
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| Format: | Article |
| Language: | English |
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Universidad del Zulia
2011-05-01
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| Series: | Revista Técnica de la Facultad de Ingeniería |
| Subjects: | |
| Online Access: | https://www.produccioncientificaluz.org/index.php/tecnica/article/view/6726 |
| _version_ | 1811188693021491200 |
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| author | Lidia Argelia Juárez Ruiz Prisciliano Felipe de Jesús Cano Barrita Pedro Castro Borges |
| author_facet | Lidia Argelia Juárez Ruiz Prisciliano Felipe de Jesús Cano Barrita Pedro Castro Borges |
| author_sort | Lidia Argelia Juárez Ruiz |
| collection | DOAJ |
| description | Unsaturated flow in porous media theory relates hydraulic diffusivity with water content assuming an exponential or power dependence on water saturation. Water sorptivity, a porous material property, describes the capillary absorption rate of a porous material exposed to a water source. It is an important parameter describing the concrete cover quality of reinforced concrete. Some authors suggest that knowing the sorptivity enables one to obtain the hydraulic diffusivity. This work is based on a previous research carried out to determine the effect of curing conditions on the drying and capillary water absorption of four concrete mixtures. The objective of this paper is to determine the hydraulic diffusivity of different concrete mixtures from water content profiles obtained with Magnetic Resonance Imaging (MRI) and from sorptivity, according to the method developed by Lockington and to demonstrate the validity of this solution for the concrete mixtures studied. Results showed that the exponential and power dependence of diffusivity with respect to the water content are not valid for all concrete types studied because rehydration effects may modify the capillary water ingress.
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| first_indexed | 2024-04-11T14:23:45Z |
| format | Article |
| id | doaj.art-d7ee95224668413490399ae27bc83539 |
| institution | Directory Open Access Journal |
| issn | 0254-0770 2477-9377 |
| language | English |
| last_indexed | 2024-04-11T14:23:45Z |
| publishDate | 2011-05-01 |
| publisher | Universidad del Zulia |
| record_format | Article |
| series | Revista Técnica de la Facultad de Ingeniería |
| spelling | doaj.art-d7ee95224668413490399ae27bc835392022-12-22T04:18:59ZengUniversidad del ZuliaRevista Técnica de la Facultad de Ingeniería0254-07702477-93772011-05-01341Hydraulic diffusivity of different concrete mixtures based on sorptivity and moisture concentration profilesLidia Argelia Juárez Ruiz0Prisciliano Felipe de Jesús Cano Barrita1Pedro Castro Borges2Centro Interdisciplinario de Investigación para el Desarrollo Integral. Unidad Oxaca-MéxicoCentro Interdisciplinario de Investigación para el Desarrollo Integral. Unidad Oxaca-MéxicoCentro de Investigación y de Estudios Avanzados. Unidad Mérida-MéxicoUnsaturated flow in porous media theory relates hydraulic diffusivity with water content assuming an exponential or power dependence on water saturation. Water sorptivity, a porous material property, describes the capillary absorption rate of a porous material exposed to a water source. It is an important parameter describing the concrete cover quality of reinforced concrete. Some authors suggest that knowing the sorptivity enables one to obtain the hydraulic diffusivity. This work is based on a previous research carried out to determine the effect of curing conditions on the drying and capillary water absorption of four concrete mixtures. The objective of this paper is to determine the hydraulic diffusivity of different concrete mixtures from water content profiles obtained with Magnetic Resonance Imaging (MRI) and from sorptivity, according to the method developed by Lockington and to demonstrate the validity of this solution for the concrete mixtures studied. Results showed that the exponential and power dependence of diffusivity with respect to the water content are not valid for all concrete types studied because rehydration effects may modify the capillary water ingress. https://www.produccioncientificaluz.org/index.php/tecnica/article/view/6726sorptivityhydraulic diffusivityporous media |
| spellingShingle | Lidia Argelia Juárez Ruiz Prisciliano Felipe de Jesús Cano Barrita Pedro Castro Borges Hydraulic diffusivity of different concrete mixtures based on sorptivity and moisture concentration profiles Revista Técnica de la Facultad de Ingeniería sorptivity hydraulic diffusivity porous media |
| title | Hydraulic diffusivity of different concrete mixtures based on sorptivity and moisture concentration profiles |
| title_full | Hydraulic diffusivity of different concrete mixtures based on sorptivity and moisture concentration profiles |
| title_fullStr | Hydraulic diffusivity of different concrete mixtures based on sorptivity and moisture concentration profiles |
| title_full_unstemmed | Hydraulic diffusivity of different concrete mixtures based on sorptivity and moisture concentration profiles |
| title_short | Hydraulic diffusivity of different concrete mixtures based on sorptivity and moisture concentration profiles |
| title_sort | hydraulic diffusivity of different concrete mixtures based on sorptivity and moisture concentration profiles |
| topic | sorptivity hydraulic diffusivity porous media |
| url | https://www.produccioncientificaluz.org/index.php/tecnica/article/view/6726 |
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