Investigation of Freeze-Thaw Resistance of Stabilized Saline Soil
Table 4
Changes in UCS of stabilized soil after freeze-thaw cycles in three tests.
Specimen group
Percent of stabilizer (%)
Age (days)
Initial strengtha (MPa)
UCS after 12 cycles (MPa)
UCS after 24 cycles (MPa)
UCS after 60 cycles (MPa)
SSb
Test I
Test II
Test III
SS
Test I
Test II
Test III
SS
Test I
Test II
Test III
1
10
7
4.4
6.8
1.5
—c
4.4
9
—
—
2.1
9.5
—
—
1.2
2
15
5.4
8.3
2.6
3.9
5.9
9.9
—
—
3.6
11.2
—
—
2.9
3
20
7.1
9.8
3.9
4.9
6.9
11.1
—
—
5.4
13.5
—
—
5.0
4
10
28
7.1
9
3.6
5.1
7.1
9.5
2
2.6
5.6
9.8
—
1.0
4.0
5
15
10
9.9
5
5.8
10.0
11.7
2.8
6.2
7.3
12
—
5.1
7.4
6
20
10.7
11.4
5
6.3
10.3
13.1
4.8
6.9
8.9
14.4
3.5
6.5
7.6
aInitial strength means the value of the strength at the end of the curing period. bSS means the synchronous strength of the specimens cured under standard conditions. c— means the group of specimens were destroyed in or before this cycle.
