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Title: Effect of temperature on the strength of frozen silt
Authors: Haynes, F. Donald.
Karalius, Jack A.
Keywords: Compressive strength
Temperature effect
Fairbanks silt
Tensile strength
Frozen soil
Unfrozen water
Frozen ground
Uniaxial tests
Strain rate
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: CRREL report ; 77-3.
Description: CRREL Report
Abstract: Tests were conducted in uniaxial compression and tension to determine the effect of temperature on the strength of Fairbanks silt. Test temperatures ranged from 0°C to -56.7°C. Two machine speeds, 4.23 cm/sec and 0.0423 cm/sec, were used for the constant displacement rate tests. From the highest to the lowest temperature, the compressive strength increased up to about one order of magnitude and the tensile strength increased about one-half an order of magnitude. Equations are presented which correlate strength with temperature at the strain rates obtained. The initial tangent and 50% strength moduli and the specific energy are given for each test. The mode of fracture and the effects of unfrozen water content and ice matrix strengthening are discussed, and the test results are compared to with the data of other investigations.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:CRREL Report

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