Fracture Morphology Analysis of Frozen Red Sandstone under Impact

Table 2

Grade of screening and fractal dimension for red sandstone under dynamic impact.

Number	d (mm)
	0.075	0.15	0.3	0.6	1.18	2.36	4.75	9.5	13.2	16	19	26.5	31.5	37.5	53	D
SRUC-25-1	4.7	8.6	10.6	6	12.1	33.5	61.3	66.4	4	32.7	73	0	74.5	4.7	8.6	2.32947
SRUC-25-2	5.8	13.3	17.7	7.3	13.1	28.3	53.7	47.5	22.4	19.4	36.4	31.9	32.9	57.7	0	2.42209
SRUC-25-3	2.1	7.9	25.1	8	14.2	29	53.8	48.2	45.4	0	71.7	0	33.3	58.3	2.1	2.36009
SRUC-5-1	0.3	0.4	0.4	0.3	0.3	1.2	0	1.9	1.9	4.5	32.4	0	0	0	345	2.15302
SRUC-5-2	0.5	0.7	0.6	0.3	0.8	1.8	2.3	8.1	5.2	15.5	34.2	0	0	58.6	265.5	2.12067
SRUC-5-3	0.7	0.6	0.7	0.5	1.1	2.8	6.3	6.2	5.1	7.5	54.3	0	58	250.5	0	2.08667
SRUC-10-1	2.6	2.5	3	1.4	3.2	10.6	22	16.3	26.7	21.4	120.6	56.4	0	104.7	0	2.22649
SRUC-10-2	4.6	6.6	10.3	6.3	10.7	18.6	38.5	20.5	41.4	22.6	147	16.3	0	0	0	2.34452
SRUC-10-3	2.1	7.9	25.1	8	14.2	29	53.8	48.2	45.4	0	71.7	0	33.3	58.3	0	2.29959
SRUC-20-1	7.4	2.2	2.5	1.4	3.5	8.9	19.8	18.6	23.1	36.9	66.8	34	52.5	107.8	0	2.37579
SRUC-20-2	3.7	3.7	3.1	1.6	3.7	9.2	19.4	23.7	11.2	64.2	132.1	32.7	0	80.7	0	2.27609
SRUC-20-3	3.9	3.8	4.1	2.1	5.1	13.9	29.6	35	16.4	64.7	149.2	18.1	41.5	0	0	2.39839
SRUC-30-1	2.5	4.3	3.5	1.2	2.2	5.6	13.4	5.7	22.5	37.3	83.2	0	30.9	168.7	0	2.35326
SRUC-30-2	0.5	0.7	0.6	0.3	0.8	10.8	12.3	18.1	15.2	25.5	34.2	52.3	60.8	78.6	92.4	2.43067
SRUC-30-3	0.6	0.7	0.7	4	10	26	14.6	25	62	33	55.4	60	50.7	48	79.1	2.44847
SRUC-40-1	15.8	13.3	17.7	17.3	23.1	28.3	43.7	47.5	32.4	19.4	36.4	31.9	27.7	32.9	0	2.45002
SRUC-40-2	13.3	14.6	16.2	14.1	10.5	23	24.6	25	32	41	45.4	50	45.7	45	0	2.43218