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Chloride binding capacity and binding isotherms of OPC pastes and mortars

På svenska

Author

Summary, in English

A method for evaluating chloride binding capacity of concrete was proposed based on the adsorption from solution and chloride binding isotherms of OPC pastes and mortars with water-cement ratio 0.4, 0.6 and 0.8. The experimental results show that the chloride binding capacity of concrete strongly depends on the content of CSH gel in the concrete, regardless of the water-cement radio and the addition of aggregate. The relationship between the bound chloride and the free chloride can be described by Freundlich isotherm at high free chloride concentrations and Langmuir isotherm at low free chloride concentrations. (11 refs.)

Publishing year

1993

Language

English

Pages

247-253

Publication/Series

Cement and Concrete Research

Volume

23

Issue

2

Document type

Journal article

Publisher

Elsevier

Topic

  • Materials Engineering

Keywords

  • Service life
  • Research
  • Reinforced concrete
  • Physical chemistry
  • Masonry materials
  • Chemical attack
  • Concretes
  • Chloride binding
  • CSH gel
  • Physisorption
  • Cement paste

Status

Published

ISBN/ISSN/Other

  • ISSN: 0008-8846