Ecological and Bioengineering Studies for Stabilizing the Wad Medani-Sennar Roadside Slope Linking the Gezira and Sennar States

Table 7

Hydrometer analysis readings (specific gravity of soil 2.67; test temperature 24°C).

Elapsed time (min)	Actual hydrometer reading	Composite correction	Corrected hydrometer reading	Effective depth (cm)	Coefficient K	Grain size (mm)	Finer (%)	Finer combined (%)
0.25	1.0325	−0.0019	1.0306	7.70	0.129	0.0506	97.85	85.37
0.5	1.0320	−0.0019	1.0301	7.84	0.0129	0.0506	96.25	83.98
1	1.0310	−0.0019	1.0291	8.10	0.0129	0.0260	93.05	81.19
2	1.0310	−0.0019	1.0291	8.10	0.0129	0.0164	93.05	81.19
5	1.0310	−0.0019	1.0291	8.10	0.0129	0.0116	93.05	81.19
10	1.0305	−0.0019	1.0286	8.23	0.0129	0.0083	91.45	79.79
20	1.0300	−0.0019	1.0281	8.36	0.0129	0.0068	89.85	78.40
30	1.0290	−0.0019	1.0271	8.63	0.0129	0.0069	86.66	75.61
60	1.0275	−0.0021	1.0254	9.03	0.0129	0.0050	81.22	70.86
1440	1.0270	−0.0019	1.0251	9.16	0.0129	0.0010	80.26	70.03
480	1.0070	−0.0027	1.0043	14.45	0.0129	0.0022	13.75	12.00
1440	1.0060	0.0027	1.0033	14.71	0.0129	0.0013	10.55	9.21