Materials and Structures

, Volume 47, Issue 1–2, pp 89–103 | Cite as

Statistical analysis of concrete transport properties

  • David Conciatori
  • Étienne Grégoire
  • Éric Samson
  • Jacques Marchand
  • Luc Chouinard
Original Article

Abstract

Results of a statistical analysis of transport properties measurements carried out on a number of concrete mixtures are presented. Migration and drying experiments were performed to evaluate the ionic diffusion coefficients and permeability of concrete mixtures. Seven concrete mixtures were tested. The mixtures were either batched under laboratory conditions or sampled from construction sites. For each mixture, approximately eighty concrete samples from a single batch were tested. Ionic diffusion coefficients were calculated by analyzing the evolution of the electrical current passing through concrete samples during the migration tests. Calculations took into account the volume of permeable pores of the materials and the pore solution chemistry. Permeability was calculated from mass loss measured during drying tests. The study indicates that the coefficient of variation of ionic diffusion coefficients is 11.1 % on average, with a maximum of 23.5 %, and that the coefficient of variation of permeability is 20.6 % on average, with a maximum of 37.3 %.

Keywords

Concrete Variability Transport properties Service life 

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Copyright information

© RILEM 2013

Authors and Affiliations

  • David Conciatori
    • 1
  • Étienne Grégoire
    • 2
  • Éric Samson
    • 2
  • Jacques Marchand
    • 2
  • Luc Chouinard
    • 3
  1. 1.Ecole Polytechnique de MontréalMontrealCanada
  2. 2.Simco Technologies IncQuebecCanada
  3. 3.McGill UniversityMontrealCanada

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