Mechanical Properties and Mesostructure Evolution of Fibre-Reinforced Loess under Freeze-Thaw Cycles

Table 6

Cohesion deterioration rate of reinforced/unreinforced loess under freeze-thaw cycles.

Level of freeze-thawcycles	Water content 17.8%				Water content 22%				Water content saturated
	Unreinforced		Reinforced		Unreinforced		Reinforced		Unreinforced		Reinforced
	Δ (kPa)	(%)	Δ (kPa)	(%)	Δ (kPa)	(%)	Δ (kPa)	(%)	Δ (kPa)	(%)	Δ (kPa)	(%)
1	4.0	25.0	5.2	58.4	2.6	21.8	3.8	45.2	1.0	27.0	1.8	33.9
2	6.9	43.1	0.8	8.9	6.4	53.7	1.4	16.6	2.4	64.8	0.9	16.9
3	2.8	17.5	2.4	26.9	1.6	13.4	1.6	19.0	0.3	8.1	2.3	43.4
4	1.1	6.8	1.3	14.6	2.0	16.8	0.3	3.5	0.5	13.5	−0.4	−7.5
5	1.1	6.8	−0.5	−5.6	0.1	0.8	2.6	30.9	−0.5	−13.5	0.2	3.7
6	0.1	0.6	−0.3	−3.3	0.1	0.8	−1.3	−15.4	0	0	0.5	9.4