Question

QUESTION The results of a sieve analysis of two soil samples are as folow Soll B 26 0 0.00 5.00 8.0 0.0 7 0 21.0 410 32.0 16.0 21.0 63.0 48.0 4.0 3.0 grading curvies for the soils (35 marks Plot st CJ and (5 marks of u of curvature 1Cj for these soils (5 marks Using the C and C obtained. comment briefly on the results (10

Answer 1

Cumulative Cumulative Sieve Size (Mass (mm) Retained) Grain Size Distribution Curve Retained %Retained %Passing 120 100 0 0 0 37.75 89.6 10.4 10.4 100 26 20 77.2 22.8 12.4 10 31 72.8 27.2 D60 1.6 mm 65.6 34.4 7.2 18 60 56 9.6 24 1.18 D30 0.29 mm 52.4 47.6 8.4 21 0.6 31.2 68.8 16.4 41 0.3 D10 0.15 mm 81.6 18.4 12.8 32 0.212 0 12 6.4 100 10 16 0.15 0.1 0.01 94 15 Particle Size (mm) 0.063 0 100 6 15 0 Pan 250 Total

Soil B Sieve Size Cumulative Cumulative (Mass Grain Size Distribution Curve Retained %Retained %Passing Retained) 120.00 2.00 100.00 0.00 0.00 0.00 4.19 4.19 1.18 7.00 95.81 100.00 89.22 0.60 11.00 6.59 10.78 80.00 D60 0.26 mm 23.35 0.30 21.00 12.57 76.65 60.00 37.72 63.00 61.08 0.21 38.92 40.00 48.00 10.18 D30 0.19 mm 0.15 28.74 89.82 20.00 98.20 0.06 14.00 8.38 1.80 D10 0.15 mm Pan 0.00 3.00 1.80 100.00 0.00 0.00 0.01 0.10 1.00 10.00 Particle Size (mm) Total 167.00

Dio SoilA Soil B Cu- O IS О.IS 10167 cu 1.7333 x(DCO) CD10)

Soil B 2 Soil A С 0.23) 2 Fo graded Sand 6. to 3 soils A tB do not matcb the ahove Cntemia both