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Disjoining pressure of water films in frozen materials



Title: Disjoining pressure of water films in frozen materials
Author(s): N.V. Churaev, V.D. Sobolev
Paper category : conference
Book title: International RILEM Workshop on Frost Resistance of Concrete
Editor(s): M. J. Setzer, R. Auberg and H. - J. Keck
Print-ISBN: 2-912143-30-6
e-ISBN: 2351580370
Publisher: RILEM Publications SARL
Publication year: 2002
Pages: 97 - 103
Total Pages: 7
Nb references: 21
Language: English


Abstract: Using dilatometry method the thickness of nonfreezing film formed on inner molecu-larly smooth surface of a thin (micrometer size) quartz capillary was first measured in dependence on temperature and external pressure on ice in the temperature range from -1°C to -0.14°C and pressures up to 8 MPa. The data obtained were used for calculation of disjoining pressure isotherms of nonfreezing films. It was shown that the main contri-bution to the films stability gives structural forces, caused by structural changes of non-freezing water. The structural changes are also responsible for the effect of nonfreezing. The arising disjoining pressure may cause defects and even frost heaving in natural min-eral bodies, like soils and grounds.


Online publication: 2010-06-28
Publication type : full_text
Public price (Euros): 0.00