Study on the Changing Rules of Silty Clay’s Pore Structure under Freeze-Thaw Cycles

Table 4

Different schemes in the freeze-thaw cyclic test.

Properties of soil sample	Soil sample ID	Number of freeze-thaw cycles	Freezing temperature (°C)
With a compaction degree of 90%, a moisture content of 20.9% and a dry density of 1. 61 g/cm^3	a3	3	−15
	a20	20	−15
	b3	3	−10
	b20	20	−10
	c3	3	−5
	c20	20	−5