title: Comparison between traditional laboratory tests, permeability measurements and CT-based fluid flow modelling for cultural heritage applications.
abstract: In this paper, we examine the possibility to use on-site permeability measurements for cultural heritage applications as an alternative for traditional laboratory tests such as determination of the capillary absorption coefficient. These on-site measurements, performed with a portable air permeameter, were correlated with the pore network properties of eight sandstones and one granular limestone that are discussed in this paper. The network properties of the 9 materials tested in this study were obtained from micro-computed tomography (μCT) and compared to measurements and calculations of permeability and the capillary absorption rate of the stones under investigation, in order to find the correlation between pore network characteristics and fluid management characteristics of these sandstones. Results show a good correlation between capillary absorption, permeability and network properties, opening the possibility of using on-site permeability measurements as a standard method in cultural heritage applications.
authors.affiliation: UGCT/PProGRess, Dept. of Geology, Ghent University, Krijgslaan 281, 9000 Ghent, Belgium. Electronic address: Wesley.deboever@ugent.be.
authors.forename: Wesley
authors.initials: W
authors.lastname: De Boever
authors.affiliation: UGCT/PProGRess, Dept. of Geology, Ghent University, Krijgslaan 281, 9000 Ghent, Belgium.
authors.forename: Tom
authors.initials: T
authors.lastname: Bultreys
authors.affiliation: UGCT/PProGRess, Dept. of Geology, Ghent University, Krijgslaan 281, 9000 Ghent, Belgium.
authors.forename: Hannelore
authors.initials: H
authors.lastname: Derluyn
authors.affiliation: UGCT/Radiation Physics, Dept. of Physics & Astronomy, Ghent University, Proeftuinstraat 86, 9000 Ghent, Belgium.
authors.forename: Luc
authors.initials: L
authors.lastname: Van Hoorebeke
authors.affiliation: UGCT/PProGRess, Dept. of Geology, Ghent University, Krijgslaan 281, 9000 Ghent, Belgium.
authors.forename: Veerle
authors.initials: V
authors.lastname: Cnudde
keywords: Capillary absorption; Cultural heritage; Fluid flow simulation; Micro-CT; Permeability; Pore network properties