found through temperature measurement that under different negative freezing temperatures, the unfrozen water content shows an increasing trend with the increase in fine particle content.
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The influence of freeze-thaw action and particle size characteristics on the shear resistance of black soil.
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The sentences
In this study, two distinct trends in shear strength were observed for soils categorized by different particle sizes as the number of freeze-thaw cycles increased: soils with particle size d < 1 mm soil showed an overall increasing trend in shear strength, while those with coarser particle sizes exhibited a decreasing trend.