Influence of Two Cooling Methods on Dynamic Mechanical Properties of High Temperature Sandstone

Table 2

Basic physical parameters of sandstone before heating and after natural cooling.

T (°C)	Samples	Before heating					After natural cooling
		D (mm)	L (mm)	M (g)	P (g·cm^−3)	C (m·s^−1)	D (mm)	L (mm)	M (g)	ρ (g·cm^−3)	C (m·s^−1)
20	GB11-05	49.90	25.06	127.51	2.602	3916	49.90	25.06	127.51	2.602	3916
	GB11-06	49.85	25.20	127.58	2.594	3937	49.85	25.20	127.58	2.594	3937
	GB11-07	49.74	25.19	127.47	2.604	3936	49.74	25.19	127.47	2.604	3936
100	GB11-12	49.74	25.12	126.78	2.598	3489	49.53	25.21	126.50	2.605	3501
	GB11-14	49.80	25.17	128.04	2.612	4194	49.70	25.18	127.75	2.616	3497
	GB11-16	49.75	25.00	126.91	2.611	3907	49.71	24.90	126.66	2.621	3662
200	GB11-21	49.94	25.19	126.75	2.570	3704	49.55	25.14	125.99	2.599	3307
	GB11-22	49.78	25.13	127.63	2.610	3695	49.71	25.14	126.84	2.600	3492
	GB11-24	49.79	25.16	127.09	2.595	3700	49.61	25.16	126.48	2.602	3494
300	GB11-29	49.79	25.12	127.33	2.604	3925	49.74	25.07	126.36	2.594	3482
	GB11-30	49.97	25.00	126.57	2.581	3676	49.78	24.97	125.59	2.585	3285
	GB11-32	49.72	25.15	127.02	2.602	3698	49.68	25.14	126.10	2.588	3696
400	GB11-37	49.72	25.20	126.66	2.589	3706	49.71	25.07	125.53	2.580	3299
	GB11-38	49.85	25.06	126.16	2.580	3685	49.73	24.97	124.91	2.575	3468
	GB11-39	49.62	25.02	128.47	2.655	3475	49.59	25.00	126.96	2.629	3290
500	GB11-46	49.63	25.23	127.89	2.621	3942	49.68	25.15	124.58	2.556	3309
	GB11-47	49.85	25.16	128.10	2.609	3931	49.77	25.12	124.21	2.542	3306
	GB11-48	49.77	25.18	128.02	2.613	3703	49.72	25.16	125.00	2.559	3311
600	GB11-56	49.76	25.29	127.51	2.593	3719	49.93	25.35	121.85	2.455	2535
	GB11-57	49.76	25.18	126.96	2.593	3702	49.95	25.26	120.05	2.426	2177
	GB11-58	49.65	24.73	127.23	2.657	3637	49.91	24.90	118.28	2.428	2490
700	GB11-64	49.82	25.11	127.11	2.597	3923	50.03	25.28	119.02	2.395	2039
	GB11-66	49.67	25.15	126.40	2.595	3929	50.03	25.34	118.43	2.378	1863
	GB11-67	49.76	25.18	127.11	2.596	3703	49.97	25.37	119.41	2.400	2114
800	GB11-74	49.85	25.10	127.28	2.599	3922	50.21	25.34	118.91	2.371	1712
	GB11-76	49.83	25.10	127.45	2.604	3921	50.16	25.35	118.77	2.372	1760
	GB11-77	49.74	25.22	127.13	2.594	3941	50.08	25.40	119.19	2.383	1814
900	GB11-86	49.89	25.17	127.40	2.590	3932	50.26	25.49	118.82	2.351	1931
	GB11-87	49.70	25.13	126.06	2.586	3695	50.19	25.43	117.98	2.346	1869
	GB11-88	49.74	25.05	126.74	2.604	3684	50.21	25.35	118.59	2.363	1864
1000	GB11-94	49.77	25.15	127.12	2.598	4191	50.37	25.55	117.90	2.316	1935
	GB11-95	49.69	25.16	127.07	2.605	3931	50.50	25.61	117.53	2.291	2001
	GB11-98	49.69	25.12	126.86	2.604	3306	50.31	25.53	118.54	2.335	1934