Loading Rate Effect of Rock Material with the Direct Tensile and Three Brazilian Disc Tests

Table 2

Parameters of the specimens from the indirect tensile tests.

Method	No	D (mm)	H (mm)	(kg/m^3)	(mm/s)	(MPa)	(MPa/s)
Strip loading	1-2	48.3	25.66	2446.01	0.001	2.79	0.008
	1-26	48.3	25.40	2449.55	0.01	2.85	0.087
	1-23	48.3	25.33	2434.77	0.1	3.12	0.841
	1-24	48.3	25.91	2485.59	1	3.61	8.163
Plate loading	1-11	48.3	25.66	2424.73	0.001	6.13	0.024
	1-12	48.3	25.98	2457.89	0.01	6.41	0.243
	1-13	48.3	25.86	2469.29	0.1	6.78	2.099
	1-28	48.3	24.96	2470.87	1	7.34	17.487
Arc loading	1-16	48.3	25.65	2489.51	0.001	6.27	0.014
	1-17	48.3	25.73	2460.56	0.01	6.55	0.157
	1-18	48.3	25.15	2452.20	0.1	7.15	1.606
	1-20	48.3	25.86	2469.29	1	7.27	13.778