Fick's 2nd law - Complete solutions for chloride ingress into concrete – with focus on time dependent diffusivity and boundary condition
(2009) In Report TVBM- Abstract
- This report focuses on models of chloride ingress into concrete that are based on mathematical solutions of Fick's second law. In recent years a lot of confusion has been identified concerning these models. In some cases time-dependencies of diffusivity have been used in a mathematically incorrect way. In other cases field and laboratory data from one way of describing the time-dependency of these diffusivities has been used in models that are based on another model. This is now clarified in this report. Some of the clarifications are completely new, concerning the relationship between the age exponents in the time-dependency of the "instantaneous" and the "achieved" diffusivity.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1514888
- author
- Frederiksen, Jens M. ; Mejlbro, Leif and Nilsson, Lars-Olof LU
- organization
- publishing date
- 2009
- type
- Book/Report
- publication status
- published
- subject
- keywords
- mathematical solutions, surface chloride, diffusivity, time-dependent, concrete, chloride, Fick's 2nd law
- in
- Report TVBM
- pages
- 110 pages
- publisher
- Division of Building Materials, LTH, Lund University
- report number
- 3146
- external identifiers
-
- other:TVBM-3146
- ISSN
- 0348-7911
- language
- English
- LU publication?
- yes
- id
- d1af97c4-181f-422e-be0c-5db2dc1cc76a (old id 1514888)
- date added to LUP
- 2016-04-01 14:25:03
- date last changed
- 2018-11-21 20:26:34
@techreport{d1af97c4-181f-422e-be0c-5db2dc1cc76a, abstract = {{This report focuses on models of chloride ingress into concrete that are based on mathematical solutions of Fick's second law. In recent years a lot of confusion has been identified concerning these models. In some cases time-dependencies of diffusivity have been used in a mathematically incorrect way. In other cases field and laboratory data from one way of describing the time-dependency of these diffusivities has been used in models that are based on another model. This is now clarified in this report. Some of the clarifications are completely new, concerning the relationship between the age exponents in the time-dependency of the "instantaneous" and the "achieved" diffusivity.}}, author = {{Frederiksen, Jens M. and Mejlbro, Leif and Nilsson, Lars-Olof}}, institution = {{Division of Building Materials, LTH, Lund University}}, issn = {{0348-7911}}, keywords = {{mathematical solutions; surface chloride; diffusivity; time-dependent; concrete; chloride; Fick's 2nd law}}, language = {{eng}}, number = {{3146}}, series = {{Report TVBM}}, title = {{Fick's 2nd law - Complete solutions for chloride ingress into concrete – with focus on time dependent diffusivity and boundary condition}}, url = {{https://lup.lub.lu.se/search/files/3965059/1554357.pdf}}, year = {{2009}}, }