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Relationship between air diffusivity and permeability coefficients of cementitious materials

Auteur(s):
Médium: article de revue
Langue(s): anglais
Publié dans: RILEM Technical Letters, , v. 5
Page(s): 26-32
DOI: 10.21809/rilemtechlett.2020.114
Abstrait:

In this study, the relationship between air diffusivity and permeability in cementitious materials was investigated to theoretically investigate the relationship between diffusion and air permeability coefficients. First, an equation to correlate air diffusivity and permeability in a straight circular tube was derived. Then, existing studies that measured both air diffusivity and permeability and compared reported data were collected and the applicability of the derived equation to cementitious materials was verified. Although a correction factor was not used, the two sets of data showed good agreement quantitatively. This indicates that the derived equation can be applied to cementitious materials including concrete, and measured air diffusivity can be converted to permeability of concrete and vice versa using the derived equation.

License:

Cette oeuvre a été publiée sous la license Creative Commons Attribution 4.0 (CC-BY 4.0). Il est autorisé de partager et adapter l'oeuvre tant que l'auteur est crédité et la license est indiquée (avec le lien ci-dessus). Vous devez aussi indiquer si des changements on été fait vis-à-vis de l'original.

  • Informations
    sur cette fiche
  • Reference-ID
    10434527
  • Publié(e) le:
    11.09.2020
  • Modifié(e) le:
    02.06.2021