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Chloride binding capacity and binding isotherms of OPC pastes and mortars

Luping, Tang and Nilsson, Lars-Olof LU (1993) In Cement and Concrete Research 23(2). p.247-253
Abstract
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.)
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author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Service life, Research, Reinforced concrete, Physical chemistry, Masonry materials, Chemical attack, Concretes, Chloride binding, CSH gel, Physisorption, Cement paste
in
Cement and Concrete Research
volume
23
issue
2
pages
247 - 253
publisher
Elsevier
external identifiers
  • scopus:0027557898
ISSN
0008-8846
DOI
10.1016/0008-8846(93)90089-R
language
English
LU publication?
no
id
8504caa2-20d9-468d-a412-0fdd6d2f9349 (old id 1485694)
date added to LUP
2009-10-05 10:35:21
date last changed
2017-10-01 04:40:17
@article{8504caa2-20d9-468d-a412-0fdd6d2f9349,
  abstract     = {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.)},
  author       = {Luping, Tang and Nilsson, Lars-Olof},
  issn         = {0008-8846},
  keyword      = {Service life,Research,Reinforced concrete,Physical chemistry,Masonry materials,Chemical attack,Concretes,Chloride binding,CSH gel,Physisorption,Cement paste},
  language     = {eng},
  number       = {2},
  pages        = {247--253},
  publisher    = {Elsevier},
  series       = {Cement and Concrete Research},
  title        = {Chloride binding capacity and binding isotherms of OPC pastes and mortars},
  url          = {http://dx.doi.org/10.1016/0008-8846(93)90089-R},
  volume       = {23},
  year         = {1993},
}