Research Article

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

Figure 5

Failure patterns of specimens with different densities under quasistatic loading. (a) 250 kg/m3. (b) 450 kg/m3. (c) 650 kg/m3. (d) 850 kg/m3.
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(b)
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