@prefix prodottidellaricerca: . @prefix istituto: . @prefix prodotto: . istituto:CDS026 prodottidellaricerca:prodotto prodotto:ID19444 . @prefix pubblicazioni: . @prefix unitaDiPersonaleInterno: . unitaDiPersonaleInterno:MATRICOLA29496 pubblicazioni:autoreCNRDi prodotto:ID19444 . @prefix modulo: . modulo:ID2384 prodottidellaricerca:prodotto prodotto:ID19444 . @prefix rdf: . prodotto:ID19444 rdf:type prodotto:TIPO1101 . @prefix retescientifica: . prodotto:ID19444 rdf:type retescientifica:ProdottoDellaRicerca . @prefix rdfs: . prodotto:ID19444 rdfs:label "Models of water imbibition in untreated and treated porous media validated by quantitative magnetic resonance imaging (Articolo in rivista)"@en . @prefix xsd: . prodotto:ID19444 pubblicazioni:anno "2008-01-01T00:00:00+01:00"^^xsd:gYear ; pubblicazioni:doi "10.1063/1.2913503"^^xsd:string . @prefix skos: . prodotto:ID19444 skos:altLabel "
Mirko Gombia; Villiam Bortolotti; Robert J.S. Brown; Mara Camaiti; Paola Fantazzini (2008)
Models of water imbibition in untreated and treated porous media validated by quantitative magnetic resonance imaging
in Journal of applied physics
"^^rdf:HTML ; pubblicazioni:autori "Mirko Gombia; Villiam Bortolotti; Robert J.S. Brown; Mara Camaiti; Paola Fantazzini"^^xsd:string ; pubblicazioni:paginaInizio "094913"^^xsd:string ; pubblicazioni:altreInformazioni "Prodotto digitalizzato"^^xsd:string ; pubblicazioni:numeroVolume "103"^^xsd:string . @prefix ns11: . prodotto:ID19444 pubblicazioni:rivista ns11:ID289194 ; pubblicazioni:pagineTotali "8"^^xsd:string ; pubblicazioni:numeroFascicolo "9"^^xsd:string ; skos:note "ISI Web of Science (WOS)"^^xsd:string ; pubblicazioni:affiliazioni "Dipartimento di Fisica-Universit\u00E0 di Bologna (Italy);\nDipartimento DICMA-Universit\u00E0 di Bologna (Italy);\nNo affliazione - Claremont - California (USA)\nIstituto ICVBC-CNR Sesto Fiorentino (Italy)"^^xsd:string ; pubblicazioni:titolo "Models of water imbibition in untreated and treated porous media validated by quantitative magnetic resonance imaging"^^xsd:string ; prodottidellaricerca:abstract "Fluid imbibition affects almost every activity that directly or indirectly involves porous media,\nincluding oil reservoir rocks, soils, building materials, and countless others, including biological\nmaterials. In this paper, magnetic resonance imaging ?MRI? has been applied to study water\nimbibition in a porous medium, in which capillary properties are artificially changed. As a model\nsystem, samples of Lecce stone, a material of cultural heritage interest, were analyzed before and\nafter treatment with a protective polymer ?Silirain-50 or Paraloid PB72?. By using MRI, we can\nvisualize the presence of water inside each sample and measure the height z?t? reached by the\nwetting front as a function of time during experiments of capillary absorption before and after\ntreatment. The sorptivity S, defined as the initial slope of z versus t1/2, has been determined before treatment and through both treated and untreated faces after treatment. Very good fits to the data were obtained with theoretical and empirical models of absorption kinetics, starting from the Washburn model for capillary rise, adapted by others to homogeneous porous media, and modified by us for application to a sample having a thin low-permeability layer on either surface as a result of a treatment process. This gives us parameters to quantify the effects on imbibition of the changes in the capillary properties. It is known that the Paraloid treatment preferentially affects the larger pore channels and the Silirain the smaller, and our results show this and illustrate the roles played by the different classes of pore sizes."@en ; prodottidellaricerca:prodottoDi modulo:ID2384 , istituto:CDS026 ; pubblicazioni:autoreCNR unitaDiPersonaleInterno:MATRICOLA29496 . @prefix parolechiave: . prodotto:ID19444 parolechiave:insiemeDiParoleChiave . ns11:ID289194 pubblicazioni:rivistaDi prodotto:ID19444 . parolechiave:insiemeDiParoleChiaveDi prodotto:ID19444 .