Modelling hydraulic conductivity for porous building materials based on a prediction of capillary conductivity at capillary saturation

• Published in: International journal of heat and mass transfer Vol. 186; p. 122457
• Main Authors: Knarud, Jon Ivar, Kvande, Tore, Geving, Stig
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.05.2022; Elsevier BV
• Subjects: Absorptivity; Assemblies; Building materials; Capillary absorption coefficient; Capillary tubes; Construction materials; Hydraulics; Liquid conductivity; Model accuracy; Modelling; Moisture; Moisture diffusion; Porous materials; Prediction models; Saturation; Thin film surface diffusion; Thin films; Transport properties; Thin film surface diffusion; Moisture diffusion; Capillary absorption coefficient; Liquid conductivity

•Modelling of hydraulic conductivity is addressed to ease engineering applicability.•Bundle of tubes model approach is revisited for modeling capillary conductivity.•A novel prediction expression for conductivity at capillary saturation is derived.•A practical hydraulic conductivity model for the fu...