An Experimental Apparatus for Monitoring Radon during Compression of Coal/Rock Samples and Its Preliminary Application

Table 2

The axial deformation of three samples.

Time (min)	#1 sample (mm)	#2 sample (mm)	#3 sample (mm)
0	0.280	0.153	0.056
5	0.428	0.186	0.063
10	0.680	0.247	0.084
15	1.014	0.330	0.116
20	1.225	0.460	0.155
25	1.360	0.600	0.227
30	1.464	0.708	0.287
35	1.587	0.800	0.339
40	1.696	0.887	0.400
45	1.884	0.928	0.447
50	2.094	1.010	0.489
55	2.290	1.080	0.521
60	2.348	1.148	0.563
65	2.377	1.265	0.616
70	2.384	1.440	0.689
75	2.391	1.560	0.774
80	2.400	1.574	0.879
85	2.400	1.567	0.984
90	2.406	1.581	1.021
95	2.406	1.588	1.021
100	2.409	1.588	1.026
105	2.406	1.588	1.026
110	2.406	1.588	1.037
115	2.413	1.595	1.032
120	2.413	1.600	1.032