Thermodynamics of hindered adsorption and its implications for hardened cement paste and concrete

Z. P. Bažant*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

60 Scopus citations

Abstract

The dominant mechanism of shrinkage and creep of concrete at working stress levels is presently believed to consist in a coupling between change of thickness and diffusion in some sort of mono- or multi-molecular layers of water confined by an adsorbent solid. The classical solution thermodynamics and the usual formulation of surface thermodynamics are both inadequate for a rigorous treatment of this phenomenon. In the latter case this is due to the fact that a surface phase of limiting zero thickness is implied at the outset. In the present paper, thermodynamics of hindered adsorption which is consistent with the basic concepts of surface thermodynamics but free from the above shortcoming is developed.

Original languageEnglish (US)
Pages (from-to)1-16
Number of pages16
JournalCement and Concrete Research
Volume2
Issue number1
DOIs
StatePublished - Jan 1972

ASJC Scopus subject areas

  • Building and Construction
  • Materials Science(all)

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