An Improved Algorithm in Porosity Characteristics Analysis for Rock and Soil Aggregate

Table 1

The porosity calculation for typical CT slice under different stress level.

Axial stress	Slice-1	Slice-5	Slice-13	Slice-17	Slice-25	Slice-31
(MPa)	(%)	(%)	(%)	(%)	(%)	(%)
0	9.78445	8.66302	8.48999	8.66955	11.93590	10.21865
0.7	5.95077	4.03601	3.96500	4.38860	14.84958	9.21467
2.74	7.20932	4.54531	4.82852	4.91912	8.52500	7.24196
3.87	23.29622	9.83196	7.36521	9.81701	22.90364	18.02289
5.26	24.50009	9.93480	7.81982	10.60299	24.95878	19.60627
6.33	27.07269	10.14701	8.83923	12.39614	29.69426	23.39253