SOLUTION MANUAL
All Chapters Included
, Chapter 2
D60 0.42 2.625 2.63 ; C D302
0.212
2.1 Cu c 0.656 0.66
D10 1.16 (D60 )(D10 ) (0.42)(0.16)
D60 0.81 0.41
2.2 C 3.0 ; C 30 2 0.768 0.77
D2
u c
D10 0.27 (D60 )(D10 ) (0.81)(0.27)
2.3 a.
Sieve Mass of soil retained Percent retained Percent
no. on each sieve (g) on each sieve finer
4 28 4.54 95.46
10 42 6.81 88.65
20 48 7.78 80.88
40 128 20.75 60.13
60 221 35.82 24.31
100 86 13.94 10.37
200 40 6.48 3.89
Pan 24 3.89 0.00
617 g
1
© 2014 Cengage Learning. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part.
, b. D10 = 0.16 mm; D30 = 0.29 mm; D60 = 0.45 mm
D60 0.45
c. Cu 2.812 2.81
D10 0.16
d. Cc D302 0.29
2
1.168 1.17
(D60 )(D10 ) (0.45)(0.16)
2.4 a.
Sieve Mass of soil retained Percent retained Percent
no. on each sieve (g) on each sieve Finer
4 0 0.0 100.00
6 30 6.0 94.0
10 48.7 9.74 84.26
20 127.3 25.46 58.80
40 96.8 19.36 39.44
60 76.6 15.32 24.12
100 55.2 11.04 13.08
200 43.4 8.68 4.40
Pan 22 4.40 0.00
500 g
b. D10 = 0.13 mm; D30 = 0.3 mm; D60 = 0.9 mm
2
© 2014 Cengage Learning. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part.
, D60 0.9
c. Cu 6.923 6.92
D10 0.13
D302 0.32
d. Cc 0.769 0.77
(D60 )(D10 ) (0.9)(0.13)
2.5 a.
Sieve Mass of soil retained Percent retained Percent
no. on each sieve (g) on each sieve finer
4 0 0.0 100.00
10 40 5.49 94.51
20 60 8.23 86.28
40 89 12.21 74.07
60 140 19.20 54.87
80 122 16.74 38.13
100 210 28.81 9.33
200 56 7.68 1.65
Pan 12 1.65 0.00
729 g
b. D10 = 0.17 mm; D30 = 0.18 mm; D60 = 0.28 mm
D60 0.28
c. Cu 1.647 1.65
D10 0.17
3
© 2014 Cengage Learning. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part.
All Chapters Included
, Chapter 2
D60 0.42 2.625 2.63 ; C D302
0.212
2.1 Cu c 0.656 0.66
D10 1.16 (D60 )(D10 ) (0.42)(0.16)
D60 0.81 0.41
2.2 C 3.0 ; C 30 2 0.768 0.77
D2
u c
D10 0.27 (D60 )(D10 ) (0.81)(0.27)
2.3 a.
Sieve Mass of soil retained Percent retained Percent
no. on each sieve (g) on each sieve finer
4 28 4.54 95.46
10 42 6.81 88.65
20 48 7.78 80.88
40 128 20.75 60.13
60 221 35.82 24.31
100 86 13.94 10.37
200 40 6.48 3.89
Pan 24 3.89 0.00
617 g
1
© 2014 Cengage Learning. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part.
, b. D10 = 0.16 mm; D30 = 0.29 mm; D60 = 0.45 mm
D60 0.45
c. Cu 2.812 2.81
D10 0.16
d. Cc D302 0.29
2
1.168 1.17
(D60 )(D10 ) (0.45)(0.16)
2.4 a.
Sieve Mass of soil retained Percent retained Percent
no. on each sieve (g) on each sieve Finer
4 0 0.0 100.00
6 30 6.0 94.0
10 48.7 9.74 84.26
20 127.3 25.46 58.80
40 96.8 19.36 39.44
60 76.6 15.32 24.12
100 55.2 11.04 13.08
200 43.4 8.68 4.40
Pan 22 4.40 0.00
500 g
b. D10 = 0.13 mm; D30 = 0.3 mm; D60 = 0.9 mm
2
© 2014 Cengage Learning. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part.
, D60 0.9
c. Cu 6.923 6.92
D10 0.13
D302 0.32
d. Cc 0.769 0.77
(D60 )(D10 ) (0.9)(0.13)
2.5 a.
Sieve Mass of soil retained Percent retained Percent
no. on each sieve (g) on each sieve finer
4 0 0.0 100.00
10 40 5.49 94.51
20 60 8.23 86.28
40 89 12.21 74.07
60 140 19.20 54.87
80 122 16.74 38.13
100 210 28.81 9.33
200 56 7.68 1.65
Pan 12 1.65 0.00
729 g
b. D10 = 0.17 mm; D30 = 0.18 mm; D60 = 0.28 mm
D60 0.28
c. Cu 1.647 1.65
D10 0.17
3
© 2014 Cengage Learning. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part.
