Study on Dynamic Mechanical Properties of Full Tailings Cemented Backfilling Impacted by Cement-Sand Ratio

Table 2

Test results of mechanics.

Number	Ratio	Strain rate (s^−1)	Peak stress (MPa)	Peak time (μs)	Dynamic strength growth factor	Peak strain	Dynamic and static strain ratio
A4	1 : 4	56	2.89	55.00	1.05	0.0067	0.12
A5	1 : 4	79	5.16	19.00	1.88	0.0101	0.18
A6	1 : 4	103	4.57	19.00	1.66	0.0122	0.22
A7	1 : 4	118	6.73	20.00	2.45	0.0136	0.25
A8	1 : 4	129	7.44	47.00	2.71	0.0146	0.26
A9	1 : 4	141	10.11	20.00	3.68	0.0153	0.28
A10	1 : 4	203	12.78	17.00	4.65	0.0183	0.33
A11	1 : 4	221	14.50	18.00	5.27	0.0194	0.35
A12	1 : 4	247	15.92	19.00	5.79	0.0219	0.40
A13	1 : 4	266	17.27	18.00	6.28	0.0236	0.43
A14	1 : 4	305	14.19	19.00	5.16	0.0274	0.50
B3	1 : 6	50	2.48	53.00	1.16	0.0043	0.12
B4	1 : 6	56	3.08	53.00	1.44	0.0065	0.19
B5	1 : 6	80	6.33	44.00	2.96	0.0089	0.25
B6	1 : 6	105	6.72	41.00	3.14	0.0099	0.28
B7	1 : 6	112	8.95	45.00	4.18	0.0103	0.29
B8	1 : 6	123	11.25	43.00	5.26	0.0110	0.32
B9	1 : 6	127	11.41	17.00	5.33	0.0115	0.33
B10	1 : 6	167	12.02	19.00	5.62	0.0145	0.42
B11	1 : 6	168	12.42	18.00	5.80	0.0150	0.43
B12	1 : 6	185	10.91	18.00	4.66	0.0154	0.44
C3	1 : 8	43	2.03	16.00	1.47	0.0009	0.06
C4	1 : 8	56	3.73	45.00	2.70	0.0015	0.10
C5	1 : 8	68	5.38	50.00	3.90	0.0023	0.15
C6	1 : 8	75	6.88	20.00	4.99	0.0034	0.23
C7	1 : 8	82	7.84	18.00	5.68	0.0043	0.29
C8	1 : 8	91	8.87	22.00	6.43	0.0047	0.31
C9	1 : 8	95	7.22	18.00	5.23	0.0049	0.33
C10	1 : 8	102	9.54	19.00	6.91	0.0054	0.36
C11	1 : 8	120	8.73	17.00	6.33	0.0068	0.45