Numerical simulation of multi-species diffusion
(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:
https://lup.lub.lu.se/record/1485770
- author
- Truc, Olivier ; Ollivier, Jean-Pierre and Nilsson, Lars-Olof LU
- publishing date
- 2000
- 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
- 2016-04-01 12:22:59
- date last changed
- 2022-04-21 06:43:17
@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}}, 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}}, 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}}, doi = {{10.1007/BF02480537}}, volume = {{33}}, year = {{2000}}, }