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On the service life of concrete exposed to frost action

Fagerlund, Göran LU (1997) International Workshop in the Resistance of Concrete to Scaling due to Freezing in the Presence of De-icing Salts, In Freeze-Thaw Durability of Concrete (RILEM Proceedings 30) p.23-41
Abstract
A theory is presented for the service life of concrete exposed to frost action. It is based on a separation of the frost resistance problem in two parts. Part 1, that is only a function of the material itself, and which is expressed in terms of a critical water content, or a degree of saturation, which is a "fracture value" being almost independent of the external conditions (except for the lowest temperature and the internal salt concentration). The critical degree of saturation is a consequence of the existence of a critical distance of water transfer during freezing. Some experimental data for the critical distance are given. Part 2, that is a function of the wetness of the environment, and which is expressed in terms of a time function... (More)
A theory is presented for the service life of concrete exposed to frost action. It is based on a separation of the frost resistance problem in two parts. Part 1, that is only a function of the material itself, and which is expressed in terms of a critical water content, or a degree of saturation, which is a "fracture value" being almost independent of the external conditions (except for the lowest temperature and the internal salt concentration). The critical degree of saturation is a consequence of the existence of a critical distance of water transfer during freezing. Some experimental data for the critical distance are given. Part 2, that is a function of the wetness of the environment, and which is expressed in terms of a time function of the capillary water uptake, and the long term water absorption in the air-pore system. Probably, it is also a function of the salt concentration outside and inside the concrete. It is shown in the paper, that the long term water absorption in pure water can often be described and extrapolated by simple time functions. (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Freeze-Thaw Durability of Concrete (RILEM Proceedings 30)
editor
Pigeon, Michel; Setzer, Max J.; Marchand, Jacques; ; and
pages
23 - 41
publisher
E & FN Spon
conference name
International Workshop in the Resistance of Concrete to Scaling due to Freezing in the Presence of De-icing Salts,
ISBN
0-419-20000-2
language
English
LU publication?
yes
id
d6d663f1-af41-4197-a6a0-8738315e50ae (old id 4174521)
date added to LUP
2013-12-02 15:15:25
date last changed
2016-06-29 16:19:31
@inproceedings{d6d663f1-af41-4197-a6a0-8738315e50ae,
  abstract     = {A theory is presented for the service life of concrete exposed to frost action. It is based on a separation of the frost resistance problem in two parts. Part 1, that is only a function of the material itself, and which is expressed in terms of a critical water content, or a degree of saturation, which is a "fracture value" being almost independent of the external conditions (except for the lowest temperature and the internal salt concentration). The critical degree of saturation is a consequence of the existence of a critical distance of water transfer during freezing. Some experimental data for the critical distance are given. Part 2, that is a function of the wetness of the environment, and which is expressed in terms of a time function of the capillary water uptake, and the long term water absorption in the air-pore system. Probably, it is also a function of the salt concentration outside and inside the concrete. It is shown in the paper, that the long term water absorption in pure water can often be described and extrapolated by simple time functions.},
  author       = {Fagerlund, Göran},
  booktitle    = {Freeze-Thaw Durability of Concrete (RILEM Proceedings 30)},
  editor       = {Pigeon, Michel and Setzer, Max J. and Marchand, Jacques},
  isbn         = {0-419-20000-2},
  language     = {eng},
  pages        = {23--41},
  publisher    = {E & FN Spon},
  title        = {On the service life of concrete exposed to frost action},
  year         = {1997},
}