Macro- and Microresearch on Swelling Characteristics and Deformation Mechanism of Red-Bed Mudstone in Central Sichuan, China

Figure 4

Laboratory basic physical and mechanical tests: (a) water content; (b) dry saturated absorbed water ratio; (c) confined swelling ratio; (d) free swelling ratio of rock powder; (e) three-dimensional swelling ratio; (f) swelling force.

(a)

(b)

(c)

(d)

(e)

(f)