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Numerical simulation of multi-species diffusion

Truc, Olivier; Ollivier, Jean-Pierre and Nilsson, Lars-Olof LU (2000) In Materials and Structures 33(9). p.566-573
Abstract
A numerical model has been developed to simulate the transport of several ionic species across a saturated concrete or mortar sample. The chloride binding as well as the electrical coupling between the different ionic fluxes are included in the model by using the Nernst-Planck system of equations. This model highlights which parameters affect substantially chloride penetration into reinforced concrete structures and then shows that the use of Fick's first law in a predictive model for chloride penetration is strongly challenged. The simulations are in good agreement with diffusion-cell experiments and membrane potential measurements. (23 refs.)
Please use this url to cite or link to this publication:
author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Bond strength (materials), Computer simulation, Concrete construction, Concretes, Ionic strength, Ions, Mathematical models, Mortar, Chloride binding, Chloride penetration, Electrical coupling, Ionic fluxes, Reinforced concrete structures
in
Materials and Structures
volume
33
issue
9
pages
566 - 573
publisher
Springer
external identifiers
  • scopus:0034316915
ISSN
1359-5997
DOI
10.1007/BF02480537
language
English
LU publication?
no
id
64754c25-5934-4f44-b2f0-42c3db3ccadf (old id 1485770)
date added to LUP
2009-10-05 11:35:46
date last changed
2017-10-01 03:53:41
@article{64754c25-5934-4f44-b2f0-42c3db3ccadf,
  abstract     = {A numerical model has been developed to simulate the transport of several ionic species across a saturated concrete or mortar sample. The chloride binding as well as the electrical coupling between the different ionic fluxes are included in the model by using the Nernst-Planck system of equations. This model highlights which parameters affect substantially chloride penetration into reinforced concrete structures and then shows that the use of Fick's first law in a predictive model for chloride penetration is strongly challenged. The simulations are in good agreement with diffusion-cell experiments and membrane potential measurements. (23 refs.)},
  author       = {Truc, Olivier and Ollivier, Jean-Pierre and Nilsson, Lars-Olof},
  issn         = {1359-5997},
  keyword      = {Bond strength (materials),Computer simulation,Concrete construction,Concretes,Ionic strength,Ions,Mathematical models,Mortar,Chloride binding,Chloride penetration,Electrical coupling,Ionic fluxes,Reinforced concrete structures},
  language     = {eng},
  number       = {9},
  pages        = {566--573},
  publisher    = {Springer},
  series       = {Materials and Structures},
  title        = {Numerical simulation of multi-species diffusion},
  url          = {http://dx.doi.org/10.1007/BF02480537},
  volume       = {33},
  year         = {2000},
}