Water retention curve of soil-cement composite material

Water retention curve (WRC) is a nonlinear function that describes the relationship between the matric suction (ψ) and water content (θ) of a porous material evaluated under unsaturated conditions. WRC contains fundamental information about hydro-mechanical behavior of unsaturated...

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Autor principal:	Norambuena-Contreras,José
Lenguaje:	English
Publicado:	Universidad de Tarapacá. 2015
Materias:	Soil-cement composite matric suction water content nonlinear analysis
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052015000400015
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spelling	oai:scielo:S0718-330520150004000152016-03-22Water retention curve of soil-cement composite materialNorambuena-Contreras,José Soil-cement composite matric suction water content nonlinear analysis Water retention curve (WRC) is a nonlinear function that describes the relationship between the matric suction (ψ) and water content (θ) of a porous material evaluated under unsaturated conditions. WRC contains fundamental information about hydro-mechanical behavior of unsaturated porous materials of different composition. In this context, this paper presents the laboratory results and procedures used to determine the WRC of a soil-cement composite material used in road pavement construction. With this purpose, water content and matric suction measurements in a soil-cement composite with 3.5% of Portland cement by using pressure cells were developed. Fitting values of the WRC were calculated according to the theoretical four-parameter van Genuchten model. Hence, the best fit parameters of the van Genuchten water retention curve were estimated using a nonlinear fitting approach based in minimizing the sum of squared-error in nonlinear functions. Results show that the water retention curve and its parameters according to the van Genuchten model determined in this study can be used as reference values of the unsaturated parameters of soil-cement composite material used in road pavement construction. Moreover, soil-cement water retention curve shown in this study corresponds to one of the first results published in the literature on this composite material.info:eu-repo/semantics/openAccessUniversidad de Tarapacá.Ingeniare. Revista chilena de ingeniería v.23 n.4 20152015-10-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052015000400015en10.4067/S0718-33052015000400015
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Soil-cement composite matric suction water content nonlinear analysis
spellingShingle	Soil-cement composite matric suction water content nonlinear analysis Norambuena-Contreras,José Water retention curve of soil-cement composite material
description	Water retention curve (WRC) is a nonlinear function that describes the relationship between the matric suction (ψ) and water content (θ) of a porous material evaluated under unsaturated conditions. WRC contains fundamental information about hydro-mechanical behavior of unsaturated porous materials of different composition. In this context, this paper presents the laboratory results and procedures used to determine the WRC of a soil-cement composite material used in road pavement construction. With this purpose, water content and matric suction measurements in a soil-cement composite with 3.5% of Portland cement by using pressure cells were developed. Fitting values of the WRC were calculated according to the theoretical four-parameter van Genuchten model. Hence, the best fit parameters of the van Genuchten water retention curve were estimated using a nonlinear fitting approach based in minimizing the sum of squared-error in nonlinear functions. Results show that the water retention curve and its parameters according to the van Genuchten model determined in this study can be used as reference values of the unsaturated parameters of soil-cement composite material used in road pavement construction. Moreover, soil-cement water retention curve shown in this study corresponds to one of the first results published in the literature on this composite material.
author	Norambuena-Contreras,José
author_facet	Norambuena-Contreras,José
author_sort	Norambuena-Contreras,José
title	Water retention curve of soil-cement composite material
title_short	Water retention curve of soil-cement composite material
title_full	Water retention curve of soil-cement composite material
title_fullStr	Water retention curve of soil-cement composite material
title_full_unstemmed	Water retention curve of soil-cement composite material
title_sort	water retention curve of soil-cement composite material
publisher	Universidad de Tarapacá.
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052015000400015
work_keys_str_mv	AT norambuenacontrerasjose waterretentioncurveofsoilcementcompositematerial
_version_	1714203428605919232

Water retention curve of soil-cement composite material

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