| AE | Acoustic emission |
| CPB | Cemented paste backfill |
| CSH | Calcium silicate hydrates |
| DW | Deionized water |
| OCPB | Ordinary phosphogypsum based cemented paste backfill |
| OPC | Ordinary Portland cement |
| OPG | Ordinary phosphogypsum |
| PCA | Principal component analysis |
| PSD | Particle size distribution |
| SEM | Scanning electron microscopy |
| TCPB | Water-washing treated phosphogypsum based cemented paste backfill |
| TPG | Water-washing pre-treated phosphogypsum |
| UCS | Uniaxial compression strength |
| XRD | X-ray powder diffraction |
| XRF | X-ray fluorescence |
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