Gas Permeability of the Anisotropic Structure of a Frame Made of Concrete with the Addition of a Biocomponent—Application in Livestock Buildings. - Janowska-Renkas, Elżbieta; Fabianowski, Dariusz; Klementowski, Igor; Borek, Kinga; Koniuszy, Adam; Wałowski, Grzegorz (Materials (1996-1944), 2026)