Exploració per tema "Gypsum"
Ara es mostren els items 1-16 de 16
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Analysis of swelling in tunnels excavated in sulphate claystones
(2009)
Text en actes de congrés
Accés restringit per política de l'editorialThe paper summarizes the main phenomenological aspects of swelling in tunnels excavated in sulphate claystones and formulates a series of theoretical consideration for their coupled hydro-mechanical-chemical analysis. The ... -
Crystal growth and soil expansion: the role of interfacial pressure and pore structure
(CRC Press, 2014)
Text en actes de congrés
Accés restringit per política de l'editorialThe paper summarizes first a set of field observations in connection with the severe heave experienced by Lilla tunnel excavated in a Tertiary anhydritic claystone. Heave and swelling pressures against the tunnel rigid ... -
Effect of microstructure and relative humidity on strength and creep of gypsum
(2021-08)
Article
Accés obertThe wide range of gypsum facies observed all over the world and the strong heterogeneity that may be present even within a single facies often cause an inhomogeneous mechanical response that, if neglected, may be particularly ... -
Evaluation of the fresh state properties of gypsum with PCM using three different PCM inclusion methods
(2014)
Text en actes de congrés
Accés restringit per decisió de l'autorAccording to the International Energy Agency, the energy use in buildings accounts up to 38% of global energy consumption reaching in developed countries the 45% of the energy use in buildings in 2012. A substantial increase ... -
Expansion of mortars with gypsum contaminated fine recycled aggregates
(2012-09-20)
Article
Accés restringit per política de l'editorialThis study evaluates the expansivity of fine recycled aggregates mortars depending on the type of Portland cement, the consistency and the equivalent of acid soluble sulphates (SO3) content. For that, an experimental ... -
Geoelectrical prospecting of glauberite deposits in the Ebro basin (Spain)
(2014-05)
Article
Accés restringit per política de l'editorialGlauberite (Na2Ca[SO4]2) is an evaporitic mineral which is used in the industries of detergents, paper, glass, pharmacy, etc. Glauberite rocks are seldom found cropping out because they are very sensitive to weathering ... -
El guix de la Conca de Barberà i La Segarra
(Universitat Politècnica de Catalunya, 2014-06)
Treball Final de Grau
Accés obertL’objectiu principal d’aquest treball és la identificació i qualificació dels guixos d’aquestes dues comarques. Així mateix, l'objectiu de l'estudi és conèixer els principals llocs de guix d'interès des del punt de vista ... -
Heave of a railway bridge induced by gypsum crystal growth: field observations
(2013-07)
Article
Accés restringit per política de l'editorialThe central pillars of a bridge belonging to a recently built high-speed railway line experienced an unexpected and continuous heave after the end of construction. Pillars were founded on 3 × 3 pile groups capped by a rigid ... -
Interaction between a fractured marl caprock and CO2-rich sulfate solution under supercritical CO2 conditions
(John Gale, 2016-05)
Article
Accés obertGeological CO2 sequestration at pilot-plant scale will be developed at Hontomin (Spain). CO2 will be injected into a limestone reservoir that contains a NaCl- and sulfate-rich groundwater in equilibrium with calcite and ... -
Levantamiento de un edificio cimentado sobre roca anhidrítica del Keuper
(Sociedad Española de Mecánica del Suelo e Ingeniería Geotécnica, 2016)
Comunicació de congrés
Accés restringit per política de l'editorialLa aparición y aumento de agrietamientos en un edificio situado en el solar de una antigua cantera excavada en el Keuper motivó un reconocimiento detallado del terreno de cimentación. Las plantas sótano, semisótano y baja ... -
Modelling crystal growth
(2013)
Text en actes de congrés
Accés restringit per política de l'editorialThe sustained heave of Pont de Candí Bridge is a consequence of the development of swelling strains in the sulphated claystone located below the tips of the foundation piles of the central pillan; of the bridge. The ... -
Modelling swelling behavior of anhydritic clayey rocks
(International Centre for Computational Engineering, 2013)
Text en actes de congrés
Accés restringit per política de l'editorialThe swelling behavior observed in anhydritic rocks is explained by the precipitation of gypsum crystals in open discontinuities. Gypsum crystals growing in discontinuities contribute to open them and induce deformations ... -
Physical-mechanical comparison of the traditional gypsums from Albarracín and Pallars
(International Union of Laboratories and Experts in Construction Materials, Systems and Structures (RILEM), 2019)
Comunicació de congrés
Accés obertThe traditional gypsum of Albarracín is probably the only one currently marketed in Spain. In the Pyrenees of Lleida, specifically in the regions of Pallars Jussá and Pallars Sobirá, the traditional constructions are carried ... -
Product-specific life cycle assessment of recycled gypsum as a replacement for natural gypsum in ordinary Portland cement: application to the Spanish context
(2016-03-20)
Article
Accés restringit per política de l'editorialThe construction industry consumes large quantities of natural resources and simultaneously generates a considerable amount of construction and demolition waste (CDW). This includes gypsum waste (GW), which must be managed ... -
Rediscover traditional gypsum: territory, traditional architecture and rediscovery of traditional gypsum
(Institute of Research and Development for Computational Methods in Engineering Sciences (ICMES), 2021)
Text en actes de congrés
Accés obertIt In the region of La Segarra, in the province of Lleida (Spain), there is a geological formation of the Oligocene age, called the "Talavera Gypsum Formation". The traditional buildings located in this area are built with ... -
Traditional gypsum pavements with natural aditives
(International Union of Laboratories and Experts in Construction Materials, Systems and Structures (RILEM), 2021)
Text en actes de congrés
Accés obertIn traditional architecture, the construction systems used have always been linked to the material resources of the environment. In the areas of extraction of gypsum in the Iberian Peninsula, the use of this material as a ...