Effects of temperature and pressure on frost heaving

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Journal titleEngineering Geology
Pages2939; # of pages: 11
Subjectfrost heaving; temperature range; pressure differentials; frost penetration; champ de temperature; pression differentielle; penetration du gel
AbstractConcerning the influence of overburden pressure on the relation between rate of heave and cold-side temperature, studies show that the heave rate for various overburden pressures tends to converge as the cold-side temperature is lowered, and the maximum rates of ice accumulation at low pressures occur at temperatures closer to 0 degrees C than do those at high pressures. Evidence is also presented that a heaving zone is involved in frost action rather than a freezing plane. This zone extends over an increasingly greater temperature range and distance as the overburden pressure is increased. Using the concept of a heaving zone leads to a method for calculating the heave-decrease curve. The period of heave decrease is marked by a rapidly increasing ice segregation ratio and a reduced frost- penetration rate.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number17640
NPARC number20338496
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Record identifier57e45861-39eb-4634-b342-fdcd5bb508bb
Record created2012-07-19
Record modified2016-05-09
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