ASSESSMENT OF CONCRETE DURABILITY BY DETERMINATION OF ITS INTRINSIC PERMEABILITY

The paper describes the development at the University of Melbourne of the Leeds permeability cell for the measurement of the intrinsic permeability of concrete and mortar with respect to gases. The mathematical foundation of permeability of porous media with respect to compressible fluids is presented. A pilot program to gain experience in the operation of the cell was conducted. It consisted of testing mortars with eight different OPC+PFA combinations, under seven different curing regimes. Conclusions are drawn regarding required curing procedures for concretes with PFA blended cements in order to obtain an acceptably low permeability. This quantifies the general statement in Clause C5.4.5 in the Commentary of the Concrete section of the AUSTROADS Bridge Design Code. (a) For the covering abstract of this conference, please see IRRD abstract no 861149.

Language

  • English

Media Info

  • Features: References;
  • Pagination: p. 24.1-11
  • Serial:
    • Volume: 1
    • Issue Number: AP 28/94

Subject/Index Terms

Filing Info

  • Accession Number: 00664879
  • Record Type: Publication
  • Source Agency: ARRB
  • ISBN: 0-85588-443-6
  • Files: ITRD, ATRI
  • Created Date: Sep 9 1994 12:00AM