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Hypothesis on the mechanism of 'salt-frost scaling' of porous, brittle building materials

Lindmark, Sture LU (1997) International Symposium on Ground Freezing and Frost Action in Soils In [Host publication title missing] p.113-120
Abstract
A hypothesis on the mechanism of ''salt-scaling'' of porous building materials is described. The hypothesis is based on theories on frost heaving in soils and observations made on micro ice-lens growth in cement paste specimens. The main principle is that ice crystals close to the surface are able to feed from the remaining liquid phase of the outer salt solution after freezing has begun. Though the text mainly deals with cement based materials, the mechanism described should be valid for any brittle, porous material. A simplified calculation in the form of a traditional calculation of depth of ice-lens growth shows that the hypothesis predicts reasonable values. The correct calculation is only briefly described. Results from a first... (More)
A hypothesis on the mechanism of ''salt-scaling'' of porous building materials is described. The hypothesis is based on theories on frost heaving in soils and observations made on micro ice-lens growth in cement paste specimens. The main principle is that ice crystals close to the surface are able to feed from the remaining liquid phase of the outer salt solution after freezing has begun. Though the text mainly deals with cement based materials, the mechanism described should be valid for any brittle, porous material. A simplified calculation in the form of a traditional calculation of depth of ice-lens growth shows that the hypothesis predicts reasonable values. The correct calculation is only briefly described. Results from a first pre-series test on water absorption during freezing support the hypothesis. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Frost, salt, concrete, porous, mechanism, cement, durability
in
[Host publication title missing]
editor
Knutsson, Sven
pages
8 pages
publisher
A A BALKEMA, PO BOX 1675, 3000 BR ROTTERDAM, NETHERLANDS
conference name
International Symposium on Ground Freezing and Frost Action in Soils
ISBN
90-5410-872-X
language
English
LU publication?
yes
id
8d93800e-1d69-4c75-a891-adf1d6340dac (old id 1517459)
date added to LUP
2009-12-22 14:45:30
date last changed
2016-04-16 08:23:48
@misc{8d93800e-1d69-4c75-a891-adf1d6340dac,
  abstract     = {A hypothesis on the mechanism of ''salt-scaling'' of porous building materials is described. The hypothesis is based on theories on frost heaving in soils and observations made on micro ice-lens growth in cement paste specimens. The main principle is that ice crystals close to the surface are able to feed from the remaining liquid phase of the outer salt solution after freezing has begun. Though the text mainly deals with cement based materials, the mechanism described should be valid for any brittle, porous material. A simplified calculation in the form of a traditional calculation of depth of ice-lens growth shows that the hypothesis predicts reasonable values. The correct calculation is only briefly described. Results from a first pre-series test on water absorption during freezing support the hypothesis.},
  author       = {Lindmark, Sture},
  editor       = {Knutsson, Sven},
  isbn         = {90-5410-872-X},
  keyword      = {Frost,salt,concrete,porous,mechanism,cement,durability},
  language     = {eng},
  pages        = {113--120},
  publisher    = {ARRAY(0x8e25f60)},
  series       = {[Host publication title missing]},
  title        = {Hypothesis on the mechanism of 'salt-frost scaling' of porous, brittle building materials},
  year         = {1997},
}