Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN: 9781305635180
Author: Braja M. Das, Nagaratnam Sivakugan
Publisher: Cengage Learning
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Chapter 2, Problem 2.4P
For a soil, given:
D10 = 0.08 mm
D30 = 0.22 mm
D60 = 0.41 mm
Calculate the uniformity coefficient and the coefficient of gradation of the soil.
2.4 Repeat Problem 2.3 for the following:
D10 = 0.24 mm
D30 = 0.82 mm
D60 = 1.81 mm
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Hydrometer and sieve analysis were conducted on a soil sample.
Find D10 Deo uniformity coefficient (Cu), coefficient of curvature (CC) considering the chart given below.
Hint: Cu=Deo/D10 and CC=(D3)2 / (D1oxD6o)
100
90
80
70
60
50
40
30
20
10
0,001 CLAY
0,01
SILT
0,1
SAND
GRAVEL
10
100
DANE ÇAPI/ PARTICLE SIZE (mm)
Dec: (in mm) seç.
CC
Seç.
Cu
Seç.
D10: (in mm)
Seç.
GEÇEN DANE YÜZDESİ / PERCENT FINER THAN D
For a soil, suppose that D10 = 0.18 mm, D30 = 0.32 mm, and D60 = 0.78 mm. Calculate the uniformity coefficient and the coefficient of gradation.
Calculate the particle density of a soil using the following values;a. Weight of the flask= 40 g b. Volume of the flask= 50 ccc. Weight of dry soil= 15 gd. Weight of flask+soil+water= 96 g
a.1.67
b.1.65
c.1.63
d.1.60
Chapter 2 Solutions
Fundamentals of Geotechnical Engineering (MindTap Course List)
Ch. 2 - Prob. 2.1PCh. 2 - Following are the results of a sieve analysis: a....Ch. 2 - For a soil, given: D10 = 0.08 mm D30 = 0.22 mm D60...Ch. 2 - For a soil, given: D10 = 0.08 mm D30 = 0.22 mm D60...Ch. 2 - Repeat Problem 2.2 with the following results of a...Ch. 2 - Repeat Problem 2.2 with the following results of a...Ch. 2 - The particle characteristics of a soil are given...Ch. 2 - Redo Problem 2.7 according to the USDA system...Ch. 2 - Redo Problem 2.7 according to the AASHTO system...Ch. 2 - In a hydrometer test, the results are as follows:...
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