Acoustic Emission and Ultrasonic Characteristics in the Failure Process of Cemented Waste Concrete-Coal Gangue Backfilling (CWCGB) under Uniaxial Loading

<div>Characteristics of the AE events with 30% waste concrete substitution under uniaxial loading. (a–c) correspond to 0-σa,σa-σb, and σc-σd of the stress stage in Figure <a href="../fig6/">6</a>.</div>

Advances in Civil Engineering

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Figure 10

Figure 10: Acoustic Emission and Ultrasonic Characteristics in the Failure Process of Cemented Waste Concrete-Coal Gangue Backfilling (CWCGB) under Uniaxial Loading 

Figure 10 | Acoustic Emission and Ultrasonic Characteristics in the Failure Process of Cemented Waste Concrete-Coal Gangue Backfilling (CWCGB) under Uniaxial Loading 