Effect of Artificial Salting on Freezing Behavior of Silt Soil
Publication: Journal of Cold Regions Engineering
Volume 5, Issue 4
Abstract
The effect of artificial salting on the freezing behavior of a silt soil was investigated through open‐system unidirectional freezing tests. Specimens were prepared in 5‐cm‐by‐15‐cm segmented columns. Initial soil dry densities ranged from Artificial salting was applied by wetting the soil with salt solutions before compaction. Sodium chloride solutions at concentrations of 0.1 N, 0.25 N, and 0.5 N were used. Specimens were subjected to a top and a bottom temperature of and respectively. The results show that artificial salting is an effective treatment in reducing rate and magnitude of heave, moisture transfer to the frozen zone, and depth of frost penetration. The freezing behavior of the soil tested was also influenced by the degree of compaction, suggesting that a critical density exists at which maximum frost‐heave is reached. Increasing or decreasing soil density from this value resulted in reduction of frost‐heave. An explanation of the soil behavior was attempted.
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Information & Authors
Information
Published In
Journal of Cold Regions Engineering
Volume 5 • Issue 4 • December 1991
Pages: 143 - 157
Copyright
Copyright © 1991 ASCE.
History
Published online: Dec 1, 1991
Published in print: Dec 1991
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