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  • 1965-1969  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 55 (1968), S. 179-179 
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Materials and structures 2 (1969), S. 43-48 
    ISSN: 1359-5997
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying
    Description / Table of Contents: Summary From the data presented it is apparent that besides normal gas diffusion surface diffusion also occurs in cement-bonded building materials. Only with further measurements of the gas diffusion at varying total pressures will it be possible to determine the effective porosity which plays a role in any transportation effects in the material, and hence allow the labyrinth factor (η) and the effective pore radius (r eff ) to be calculated, using the equation Measurements of the gas diffusion at normal pressure have already shown a close connection between the texture and useful technical properties.
    Notes: Résumé Les résultats présentés montrent que, outre la diffusion gazeuse normale, il se produit une diffusion en surface dans les matériaux comprenant un squelette lié par un ciment. Seules des mesures supplémentaires de la diffusion gazeuse à différentes pressions totales permettront de déterminer la porosité effective qui joue un rôle dans tout effet de transfert à l'intérieur du matériau, et donc de calculer le facteur de labyrinthe (η) et le rayon de pore effectif (r cff ) avec l'équation Les mesures de diffusion gazeuse à pression normale ont déjà montré une étroite connection entre la texture et les propriétés technologiques.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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