Research Article

Influence of Compaction Level on the Water-Heat-Vapor Characteristics of Unsaturated Coarse-Grained Fillings Exposed to Freezing and Thawing

Figure 5

Variation of frost penetration and freezing rate during three freezing processes of C1T3F3 and C2T3F3 samples. (a) The first freezing. (b) The second freezing. (c) The third freezing.
(a)
(b)
(c)