Experimental Study and Application of a Novel Foamed Concrete to Yield Airtight Walls in Coal Mines

Figure 10

Stress-strain curves of foamed concrete under different confining pressures. (a) 0.0 MPa. (b) 2.5 MPa. (c) 5.0 MPa. (d) 7.5 MPa.

(a)

(b)

(c)

(d)