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Evidence for anomalous water vapor sorption kinetics in cement based materials

Saeidpour, Mahsa LU and Wadsö, Lars LU (2015) In Cement and Concrete Research 70. p.60-66
Abstract
We used dynamic sorption balance measurements to evaluate the diffusivity for cement pastes with three different binders (OPC, OPC + 70% slag, OPC + 10% silica fume). The diffusion of water vapor in cement based materials is normally assumed to follow Fick's law of diffusion, but our results clearly show that Ficles law cannot completely describe the sorption process in our materials. In this paper we report the evidence for this anomalous sorption behavior and discuss a possible method to evaluate diffusivities from such measurements. (C) 2015 Elsevier Ltd. All rights reserved.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Cement pastes, Transport properties, Diffusion, Anomalous sorption
in
Cement and Concrete Research
volume
70
pages
60 - 66
publisher
Elsevier
external identifiers
  • wos:000350520300007
  • scopus:84921456772
ISSN
0008-8846
DOI
10.1016/j.cemconres.2014.10.014
language
English
LU publication?
yes
id
f5457f08-e552-4b3b-aa44-eb84e40a6e25 (old id 5294013)
date added to LUP
2015-04-24 16:31:55
date last changed
2017-02-12 04:00:22
@article{f5457f08-e552-4b3b-aa44-eb84e40a6e25,
  abstract     = {We used dynamic sorption balance measurements to evaluate the diffusivity for cement pastes with three different binders (OPC, OPC + 70% slag, OPC + 10% silica fume). The diffusion of water vapor in cement based materials is normally assumed to follow Fick's law of diffusion, but our results clearly show that Ficles law cannot completely describe the sorption process in our materials. In this paper we report the evidence for this anomalous sorption behavior and discuss a possible method to evaluate diffusivities from such measurements. (C) 2015 Elsevier Ltd. All rights reserved.},
  author       = {Saeidpour, Mahsa and Wadsö, Lars},
  issn         = {0008-8846},
  keyword      = {Cement pastes,Transport properties,Diffusion,Anomalous sorption},
  language     = {eng},
  pages        = {60--66},
  publisher    = {Elsevier},
  series       = {Cement and Concrete Research},
  title        = {Evidence for anomalous water vapor sorption kinetics in cement based materials},
  url          = {http://dx.doi.org/10.1016/j.cemconres.2014.10.014},
  volume       = {70},
  year         = {2015},
}