Experimental and Numerical Assessment of the Hydrodynamical Properties of Cementitious Materials

Abstract Durability of concrete structures is strongly conditioned by the occurrence of several chemical and physical phenomena that can be linked to the displacement of water in the constitutive material. Previous studies have already emphasized that in moderate temperature and pressure conditions,...
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Autor*in:	Carlier, J.-Ph. [verfasserIn] Burlion, N. [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2010

Schlagwörter:	Cementitious materials Hydrodynamical parameters Unsaturated Experimental Numerical

Übergeordnetes Werk:	Enthalten in: Transport in porous media - Dordrecht [u.a.] : Springer Science + Business Media B.V, 1986, 86(2010), 1 vom: 19. Juni, Seite 87-102
Übergeordnetes Werk:	volume:86 ; year:2010 ; number:1 ; day:19 ; month:06 ; pages:87-102

Links:	Volltext

DOI / URN:	10.1007/s11242-010-9607-7

Katalog-ID:	SPR018068340

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520			\|a Abstract Durability of concrete structures is strongly conditioned by the occurrence of several chemical and physical phenomena that can be linked to the displacement of water in the constitutive material. Previous studies have already emphasized that in moderate temperature and pressure conditions, water transfers in weakly permeable cementitious material happen predominantly in the liquid phase, and can be modelled as a nonlinear diffusive process. The main goal of this study is to evaluate the intrinsic parameters involved in this diffusive process. For that purpose, a set of isothermal drying experiments are conducted on samples of different types, compositions and sizes. The classical Mualem expressions are fitted to the experimental sorption isotherms, and a numerical 1D model is used to fit the intrinsic permeability of the material. On the one hand, the values of the Mualem parameters we obtain show a significant sensitivity on the nature of the material and on the sample size. On the other hand, the Mualem expression, originally formulated for soils, does not fit perfectly experimental data, especially near saturation. A dual porosity formulation is proposed and allows a better representation of the material behaviour. Numerical simulations conducted with the Mualem tortuosity parameter L set to its usual value of 0.5 show a large underprediction of the value of the unsaturated permeability for low saturation values. It appears necessary to fit this parameter to values between –2.5 and –3 to obtain a good agreement with observed drying kinetics. This discrepancy must be linked to microcracks development in the sample which leads to larger apparent hydraulic conductivity at low saturation states.
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matchkey_str	article:15731634:2010----::xeietlnnmrclsesetfhhdoyaiapoete
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allfields	10.1007/s11242-010-9607-7 doi (DE-627)SPR018068340 (SPR)s11242-010-9607-7-e DE-627 ger DE-627 rakwb eng 530 ASE 33.00 bkl Carlier, J.-Ph. verfasserin aut Experimental and Numerical Assessment of the Hydrodynamical Properties of Cementitious Materials 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Durability of concrete structures is strongly conditioned by the occurrence of several chemical and physical phenomena that can be linked to the displacement of water in the constitutive material. Previous studies have already emphasized that in moderate temperature and pressure conditions, water transfers in weakly permeable cementitious material happen predominantly in the liquid phase, and can be modelled as a nonlinear diffusive process. The main goal of this study is to evaluate the intrinsic parameters involved in this diffusive process. For that purpose, a set of isothermal drying experiments are conducted on samples of different types, compositions and sizes. The classical Mualem expressions are fitted to the experimental sorption isotherms, and a numerical 1D model is used to fit the intrinsic permeability of the material. On the one hand, the values of the Mualem parameters we obtain show a significant sensitivity on the nature of the material and on the sample size. On the other hand, the Mualem expression, originally formulated for soils, does not fit perfectly experimental data, especially near saturation. A dual porosity formulation is proposed and allows a better representation of the material behaviour. Numerical simulations conducted with the Mualem tortuosity parameter L set to its usual value of 0.5 show a large underprediction of the value of the unsaturated permeability for low saturation values. It appears necessary to fit this parameter to values between –2.5 and –3 to obtain a good agreement with observed drying kinetics. This discrepancy must be linked to microcracks development in the sample which leads to larger apparent hydraulic conductivity at low saturation states. Cementitious materials (dpeaa)DE-He213 Hydrodynamical parameters (dpeaa)DE-He213 Unsaturated (dpeaa)DE-He213 Experimental (dpeaa)DE-He213 Numerical (dpeaa)DE-He213 Burlion, N. verfasserin aut Enthalten in Transport in porous media Dordrecht [u.a.] : Springer Science + Business Media B.V, 1986 86(2010), 1 vom: 19. Juni, Seite 87-102 (DE-627)269017720 (DE-600)1473676-7 1573-1634 nnns volume:86 year:2010 number:1 day:19 month:06 pages:87-102 https://dx.doi.org/10.1007/s11242-010-9607-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2360 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 33.00 ASE AR 86 2010 1 19 06 87-102
spelling	10.1007/s11242-010-9607-7 doi (DE-627)SPR018068340 (SPR)s11242-010-9607-7-e DE-627 ger DE-627 rakwb eng 530 ASE 33.00 bkl Carlier, J.-Ph. verfasserin aut Experimental and Numerical Assessment of the Hydrodynamical Properties of Cementitious Materials 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Durability of concrete structures is strongly conditioned by the occurrence of several chemical and physical phenomena that can be linked to the displacement of water in the constitutive material. Previous studies have already emphasized that in moderate temperature and pressure conditions, water transfers in weakly permeable cementitious material happen predominantly in the liquid phase, and can be modelled as a nonlinear diffusive process. The main goal of this study is to evaluate the intrinsic parameters involved in this diffusive process. For that purpose, a set of isothermal drying experiments are conducted on samples of different types, compositions and sizes. The classical Mualem expressions are fitted to the experimental sorption isotherms, and a numerical 1D model is used to fit the intrinsic permeability of the material. On the one hand, the values of the Mualem parameters we obtain show a significant sensitivity on the nature of the material and on the sample size. On the other hand, the Mualem expression, originally formulated for soils, does not fit perfectly experimental data, especially near saturation. A dual porosity formulation is proposed and allows a better representation of the material behaviour. Numerical simulations conducted with the Mualem tortuosity parameter L set to its usual value of 0.5 show a large underprediction of the value of the unsaturated permeability for low saturation values. It appears necessary to fit this parameter to values between –2.5 and –3 to obtain a good agreement with observed drying kinetics. This discrepancy must be linked to microcracks development in the sample which leads to larger apparent hydraulic conductivity at low saturation states. Cementitious materials (dpeaa)DE-He213 Hydrodynamical parameters (dpeaa)DE-He213 Unsaturated (dpeaa)DE-He213 Experimental (dpeaa)DE-He213 Numerical (dpeaa)DE-He213 Burlion, N. verfasserin aut Enthalten in Transport in porous media Dordrecht [u.a.] : Springer Science + Business Media B.V, 1986 86(2010), 1 vom: 19. Juni, Seite 87-102 (DE-627)269017720 (DE-600)1473676-7 1573-1634 nnns volume:86 year:2010 number:1 day:19 month:06 pages:87-102 https://dx.doi.org/10.1007/s11242-010-9607-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2360 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 33.00 ASE AR 86 2010 1 19 06 87-102
allfields_unstemmed	10.1007/s11242-010-9607-7 doi (DE-627)SPR018068340 (SPR)s11242-010-9607-7-e DE-627 ger DE-627 rakwb eng 530 ASE 33.00 bkl Carlier, J.-Ph. verfasserin aut Experimental and Numerical Assessment of the Hydrodynamical Properties of Cementitious Materials 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Durability of concrete structures is strongly conditioned by the occurrence of several chemical and physical phenomena that can be linked to the displacement of water in the constitutive material. Previous studies have already emphasized that in moderate temperature and pressure conditions, water transfers in weakly permeable cementitious material happen predominantly in the liquid phase, and can be modelled as a nonlinear diffusive process. The main goal of this study is to evaluate the intrinsic parameters involved in this diffusive process. For that purpose, a set of isothermal drying experiments are conducted on samples of different types, compositions and sizes. The classical Mualem expressions are fitted to the experimental sorption isotherms, and a numerical 1D model is used to fit the intrinsic permeability of the material. On the one hand, the values of the Mualem parameters we obtain show a significant sensitivity on the nature of the material and on the sample size. On the other hand, the Mualem expression, originally formulated for soils, does not fit perfectly experimental data, especially near saturation. A dual porosity formulation is proposed and allows a better representation of the material behaviour. Numerical simulations conducted with the Mualem tortuosity parameter L set to its usual value of 0.5 show a large underprediction of the value of the unsaturated permeability for low saturation values. It appears necessary to fit this parameter to values between –2.5 and –3 to obtain a good agreement with observed drying kinetics. This discrepancy must be linked to microcracks development in the sample which leads to larger apparent hydraulic conductivity at low saturation states. Cementitious materials (dpeaa)DE-He213 Hydrodynamical parameters (dpeaa)DE-He213 Unsaturated (dpeaa)DE-He213 Experimental (dpeaa)DE-He213 Numerical (dpeaa)DE-He213 Burlion, N. verfasserin aut Enthalten in Transport in porous media Dordrecht [u.a.] : Springer Science + Business Media B.V, 1986 86(2010), 1 vom: 19. Juni, Seite 87-102 (DE-627)269017720 (DE-600)1473676-7 1573-1634 nnns volume:86 year:2010 number:1 day:19 month:06 pages:87-102 https://dx.doi.org/10.1007/s11242-010-9607-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2360 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 33.00 ASE AR 86 2010 1 19 06 87-102
allfieldsGer	10.1007/s11242-010-9607-7 doi (DE-627)SPR018068340 (SPR)s11242-010-9607-7-e DE-627 ger DE-627 rakwb eng 530 ASE 33.00 bkl Carlier, J.-Ph. verfasserin aut Experimental and Numerical Assessment of the Hydrodynamical Properties of Cementitious Materials 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Durability of concrete structures is strongly conditioned by the occurrence of several chemical and physical phenomena that can be linked to the displacement of water in the constitutive material. Previous studies have already emphasized that in moderate temperature and pressure conditions, water transfers in weakly permeable cementitious material happen predominantly in the liquid phase, and can be modelled as a nonlinear diffusive process. The main goal of this study is to evaluate the intrinsic parameters involved in this diffusive process. For that purpose, a set of isothermal drying experiments are conducted on samples of different types, compositions and sizes. The classical Mualem expressions are fitted to the experimental sorption isotherms, and a numerical 1D model is used to fit the intrinsic permeability of the material. On the one hand, the values of the Mualem parameters we obtain show a significant sensitivity on the nature of the material and on the sample size. On the other hand, the Mualem expression, originally formulated for soils, does not fit perfectly experimental data, especially near saturation. A dual porosity formulation is proposed and allows a better representation of the material behaviour. Numerical simulations conducted with the Mualem tortuosity parameter L set to its usual value of 0.5 show a large underprediction of the value of the unsaturated permeability for low saturation values. It appears necessary to fit this parameter to values between –2.5 and –3 to obtain a good agreement with observed drying kinetics. This discrepancy must be linked to microcracks development in the sample which leads to larger apparent hydraulic conductivity at low saturation states. Cementitious materials (dpeaa)DE-He213 Hydrodynamical parameters (dpeaa)DE-He213 Unsaturated (dpeaa)DE-He213 Experimental (dpeaa)DE-He213 Numerical (dpeaa)DE-He213 Burlion, N. verfasserin aut Enthalten in Transport in porous media Dordrecht [u.a.] : Springer Science + Business Media B.V, 1986 86(2010), 1 vom: 19. Juni, Seite 87-102 (DE-627)269017720 (DE-600)1473676-7 1573-1634 nnns volume:86 year:2010 number:1 day:19 month:06 pages:87-102 https://dx.doi.org/10.1007/s11242-010-9607-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2360 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 33.00 ASE AR 86 2010 1 19 06 87-102
allfieldsSound	10.1007/s11242-010-9607-7 doi (DE-627)SPR018068340 (SPR)s11242-010-9607-7-e DE-627 ger DE-627 rakwb eng 530 ASE 33.00 bkl Carlier, J.-Ph. verfasserin aut Experimental and Numerical Assessment of the Hydrodynamical Properties of Cementitious Materials 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Durability of concrete structures is strongly conditioned by the occurrence of several chemical and physical phenomena that can be linked to the displacement of water in the constitutive material. Previous studies have already emphasized that in moderate temperature and pressure conditions, water transfers in weakly permeable cementitious material happen predominantly in the liquid phase, and can be modelled as a nonlinear diffusive process. The main goal of this study is to evaluate the intrinsic parameters involved in this diffusive process. For that purpose, a set of isothermal drying experiments are conducted on samples of different types, compositions and sizes. The classical Mualem expressions are fitted to the experimental sorption isotherms, and a numerical 1D model is used to fit the intrinsic permeability of the material. On the one hand, the values of the Mualem parameters we obtain show a significant sensitivity on the nature of the material and on the sample size. On the other hand, the Mualem expression, originally formulated for soils, does not fit perfectly experimental data, especially near saturation. A dual porosity formulation is proposed and allows a better representation of the material behaviour. Numerical simulations conducted with the Mualem tortuosity parameter L set to its usual value of 0.5 show a large underprediction of the value of the unsaturated permeability for low saturation values. It appears necessary to fit this parameter to values between –2.5 and –3 to obtain a good agreement with observed drying kinetics. This discrepancy must be linked to microcracks development in the sample which leads to larger apparent hydraulic conductivity at low saturation states. Cementitious materials (dpeaa)DE-He213 Hydrodynamical parameters (dpeaa)DE-He213 Unsaturated (dpeaa)DE-He213 Experimental (dpeaa)DE-He213 Numerical (dpeaa)DE-He213 Burlion, N. verfasserin aut Enthalten in Transport in porous media Dordrecht [u.a.] : Springer Science + Business Media B.V, 1986 86(2010), 1 vom: 19. Juni, Seite 87-102 (DE-627)269017720 (DE-600)1473676-7 1573-1634 nnns volume:86 year:2010 number:1 day:19 month:06 pages:87-102 https://dx.doi.org/10.1007/s11242-010-9607-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2360 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 33.00 ASE AR 86 2010 1 19 06 87-102
language	English
source	Enthalten in Transport in porous media 86(2010), 1 vom: 19. Juni, Seite 87-102 volume:86 year:2010 number:1 day:19 month:06 pages:87-102
sourceStr	Enthalten in Transport in porous media 86(2010), 1 vom: 19. Juni, Seite 87-102 volume:86 year:2010 number:1 day:19 month:06 pages:87-102
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Cementitious materials Hydrodynamical parameters Unsaturated Experimental Numerical
dewey-raw	530
isfreeaccess_bool	false
container_title	Transport in porous media
authorswithroles_txt_mv	Carlier, J.-Ph. @@aut@@ Burlion, N. @@aut@@
publishDateDaySort_date	2010-06-19T00:00:00Z
hierarchy_top_id	269017720
dewey-sort	3530
id	SPR018068340
language_de	englisch
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author	Carlier, J.-Ph.
spellingShingle	Carlier, J.-Ph. ddc 530 bkl 33.00 misc Cementitious materials misc Hydrodynamical parameters misc Unsaturated misc Experimental misc Numerical Experimental and Numerical Assessment of the Hydrodynamical Properties of Cementitious Materials
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topic_title	530 ASE 33.00 bkl Experimental and Numerical Assessment of the Hydrodynamical Properties of Cementitious Materials Cementitious materials (dpeaa)DE-He213 Hydrodynamical parameters (dpeaa)DE-He213 Unsaturated (dpeaa)DE-He213 Experimental (dpeaa)DE-He213 Numerical (dpeaa)DE-He213
topic	ddc 530 bkl 33.00 misc Cementitious materials misc Hydrodynamical parameters misc Unsaturated misc Experimental misc Numerical
topic_unstemmed	ddc 530 bkl 33.00 misc Cementitious materials misc Hydrodynamical parameters misc Unsaturated misc Experimental misc Numerical
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title	Experimental and Numerical Assessment of the Hydrodynamical Properties of Cementitious Materials
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title_full	Experimental and Numerical Assessment of the Hydrodynamical Properties of Cementitious Materials
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author_browse	Carlier, J.-Ph. Burlion, N.
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title_sort	experimental and numerical assessment of the hydrodynamical properties of cementitious materials
title_auth	Experimental and Numerical Assessment of the Hydrodynamical Properties of Cementitious Materials
abstract	Abstract Durability of concrete structures is strongly conditioned by the occurrence of several chemical and physical phenomena that can be linked to the displacement of water in the constitutive material. Previous studies have already emphasized that in moderate temperature and pressure conditions, water transfers in weakly permeable cementitious material happen predominantly in the liquid phase, and can be modelled as a nonlinear diffusive process. The main goal of this study is to evaluate the intrinsic parameters involved in this diffusive process. For that purpose, a set of isothermal drying experiments are conducted on samples of different types, compositions and sizes. The classical Mualem expressions are fitted to the experimental sorption isotherms, and a numerical 1D model is used to fit the intrinsic permeability of the material. On the one hand, the values of the Mualem parameters we obtain show a significant sensitivity on the nature of the material and on the sample size. On the other hand, the Mualem expression, originally formulated for soils, does not fit perfectly experimental data, especially near saturation. A dual porosity formulation is proposed and allows a better representation of the material behaviour. Numerical simulations conducted with the Mualem tortuosity parameter L set to its usual value of 0.5 show a large underprediction of the value of the unsaturated permeability for low saturation values. It appears necessary to fit this parameter to values between –2.5 and –3 to obtain a good agreement with observed drying kinetics. This discrepancy must be linked to microcracks development in the sample which leads to larger apparent hydraulic conductivity at low saturation states.
abstractGer	Abstract Durability of concrete structures is strongly conditioned by the occurrence of several chemical and physical phenomena that can be linked to the displacement of water in the constitutive material. Previous studies have already emphasized that in moderate temperature and pressure conditions, water transfers in weakly permeable cementitious material happen predominantly in the liquid phase, and can be modelled as a nonlinear diffusive process. The main goal of this study is to evaluate the intrinsic parameters involved in this diffusive process. For that purpose, a set of isothermal drying experiments are conducted on samples of different types, compositions and sizes. The classical Mualem expressions are fitted to the experimental sorption isotherms, and a numerical 1D model is used to fit the intrinsic permeability of the material. On the one hand, the values of the Mualem parameters we obtain show a significant sensitivity on the nature of the material and on the sample size. On the other hand, the Mualem expression, originally formulated for soils, does not fit perfectly experimental data, especially near saturation. A dual porosity formulation is proposed and allows a better representation of the material behaviour. Numerical simulations conducted with the Mualem tortuosity parameter L set to its usual value of 0.5 show a large underprediction of the value of the unsaturated permeability for low saturation values. It appears necessary to fit this parameter to values between –2.5 and –3 to obtain a good agreement with observed drying kinetics. This discrepancy must be linked to microcracks development in the sample which leads to larger apparent hydraulic conductivity at low saturation states.
abstract_unstemmed	Abstract Durability of concrete structures is strongly conditioned by the occurrence of several chemical and physical phenomena that can be linked to the displacement of water in the constitutive material. Previous studies have already emphasized that in moderate temperature and pressure conditions, water transfers in weakly permeable cementitious material happen predominantly in the liquid phase, and can be modelled as a nonlinear diffusive process. The main goal of this study is to evaluate the intrinsic parameters involved in this diffusive process. For that purpose, a set of isothermal drying experiments are conducted on samples of different types, compositions and sizes. The classical Mualem expressions are fitted to the experimental sorption isotherms, and a numerical 1D model is used to fit the intrinsic permeability of the material. On the one hand, the values of the Mualem parameters we obtain show a significant sensitivity on the nature of the material and on the sample size. On the other hand, the Mualem expression, originally formulated for soils, does not fit perfectly experimental data, especially near saturation. A dual porosity formulation is proposed and allows a better representation of the material behaviour. Numerical simulations conducted with the Mualem tortuosity parameter L set to its usual value of 0.5 show a large underprediction of the value of the unsaturated permeability for low saturation values. It appears necessary to fit this parameter to values between –2.5 and –3 to obtain a good agreement with observed drying kinetics. This discrepancy must be linked to microcracks development in the sample which leads to larger apparent hydraulic conductivity at low saturation states.
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title_short	Experimental and Numerical Assessment of the Hydrodynamical Properties of Cementitious Materials
url	https://dx.doi.org/10.1007/s11242-010-9607-7
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doi_str	10.1007/s11242-010-9607-7
up_date	2024-07-03T17:07:51.923Z
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fullrecord_marcxml	<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">SPR018068340</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20220111055632.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">201006s2010 xx \|\|\|\|\|o 00\| \|\|eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1007/s11242-010-9607-7</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)SPR018068340</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(SPR)s11242-010-9607-7-e</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">530</subfield><subfield code="q">ASE</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">33.00</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Carlier, J.-Ph.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Experimental and Numerical Assessment of the Hydrodynamical Properties of Cementitious Materials</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2010</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract Durability of concrete structures is strongly conditioned by the occurrence of several chemical and physical phenomena that can be linked to the displacement of water in the constitutive material. Previous studies have already emphasized that in moderate temperature and pressure conditions, water transfers in weakly permeable cementitious material happen predominantly in the liquid phase, and can be modelled as a nonlinear diffusive process. The main goal of this study is to evaluate the intrinsic parameters involved in this diffusive process. For that purpose, a set of isothermal drying experiments are conducted on samples of different types, compositions and sizes. The classical Mualem expressions are fitted to the experimental sorption isotherms, and a numerical 1D model is used to fit the intrinsic permeability of the material. On the one hand, the values of the Mualem parameters we obtain show a significant sensitivity on the nature of the material and on the sample size. On the other hand, the Mualem expression, originally formulated for soils, does not fit perfectly experimental data, especially near saturation. A dual porosity formulation is proposed and allows a better representation of the material behaviour. Numerical simulations conducted with the Mualem tortuosity parameter L set to its usual value of 0.5 show a large underprediction of the value of the unsaturated permeability for low saturation values. It appears necessary to fit this parameter to values between –2.5 and –3 to obtain a good agreement with observed drying kinetics. 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Experimental and Numerical Assessment of the Hydrodynamical Properties of Cementitious Materials

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