MOISTURE TRANSPORT IN POROUS BUILDING MATERIALS

The isothermal moisture transport in various porous building materials during absorption and drying was studied by nuclear magnetic resonance (NMR). It is shown that the moisture diffusivity can be determined directly from measured transient moisture profiles. NMR appears to be an accurate and reliable method to determine these moisture profiles. For both water absorption and drying it is found that, within the experimental accuracy, a single unambiguous relation exists between the moisture diffusivity and the moisture content, which is dependent on the type of material. Preliminary absorption measurements on brick/mortar samples suggest that the hydraulic contact between mortar and brick may not be perfect.

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  • Corporate Authors:

    Delft University of Technology

    Faculty of Civil Engineering, Stevin Laboratory, P.O. Box 5048
    2600 GA Delft,   Netherlands 
  • Authors:
    • PEL, L
    • Kopinga, K
  • Publication Date: 1996

Language

  • English

Media Info

  • Pagination: p. 95-105
  • Serial:
    • Heron
    • Volume: 41
    • Issue Number: 2
    • Publisher: Delft University of Technology
    • ISSN: 0046-7316

Subject/Index Terms

Filing Info

  • Accession Number: 00728951
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 21 2001 12:00AM