RESOLUTION-DEPENDENT CHARACTERIZATION OF INTERCONNECTED PORE SYSTEMS - DEVELOPMENT AND SUITABILITY OF A NEW METHOD

A method is presented for the determination of the transport-relevant parameters of pore structure. It is based on the definition of a new p ore size parameter, the pore fraction radius, characterizing the actua l size of the locally available pore space. The resulting distribution s in principle represent a resolution-dependent analysis of porosity o r pore surfaces. They allow a highly flexible interpretation of transp ort-relevant porosities, pore sizes and pore surface parameters, and a lso permit the analysis of various fractal properties of the pore syst em. A knowledge of fractal properties greatly enhances the information content of data obtained by conventional methods, and provides a suit able basis for identifying interrelationships between the pore structu re and moisture transport mechanisms.