Study on Microstructural Evolution and Strength Growth and Fracture Mechanism of Cemented Paste Backfill

Table 7

Experimental data list.

Serial number	Confining pressure/MPa	Peak load/MPa	Residual load/MPa	Peak strength/MPa	Residual strength/MPa	The ratio of residual and peak strength/%
1-1	0.4	6.11	5.12	5.25	4.40	83.80
1-2	0.6	7.34	6.64	5.94	5.11	90.46
1-3	0.8	8.48	7.75	6.82	6.23	91.39
1-4	1.0	9.19	9.01	7.39	7.39	91.95
2-1	0.4	7.80	6.39	5.99	4.91	81.92
2-2	0.6	8.18	6.67	6.61	5.55	83.99
2-3	0.8	9.19	8.16	7.12	6.27	92.83
2-4	1.0	10.53	9.98	9.07	8.60	94.81
3-1	0.4	5.32	4.51	4.76	3.88	84.77
3-2	0.6	6.33	5.50	5.52	4.93	86.89
3-3	0.8	7.44	6.38	6.39	5.51	85.75
3-4	1.0	8.65	8.51	7.55	7.39	98.38
4-1	0.4	7.06	4.84	6.06	4.34	68.56
4-2	0.6	7.26	6.21	6.28	5.42	85.54
4-3	0.8	8.33	7.52	7.19	6.46	90.28
4-4	1.0	9.64	8.81	8.37	7.69	91.39