Plot sieve size (x-axis) against % finer. Calculate for D60mm, D30mm and D10mm. Find the percentage of gravel, sand and fines. Find the CU (Coefficient of uniformity) and CC (coefficient of curvature). How does the particle size distribution of granular materials affect the properties of soil such as bulk density, permeability, and physical stability?
Plot sieve size (x-axis) against % finer. Calculate for D60mm, D30mm and D10mm. Find the percentage of gravel, sand and fines. Find the CU (Coefficient of uniformity) and CC (coefficient of curvature). How does the particle size distribution of granular materials affect the properties of soil such as bulk density, permeability, and physical stability?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
- Plot sieve size (x-axis) against % finer.
- Calculate for D60mm, D30mm and D10mm.
- Find the percentage of gravel, sand and fines.
- Find the CU (Coefficient of uniformity) and CC (coefficient of curvature).
- How does the particle size distribution of granular materials affect the properties of soil such as bulk density, permeability, and physical stability?
Note the following: = D60/D10 and CC= D302 /D60 ×D10
See attached picture for information
Transcribed Image Text:Sieve
No(g)
4
10
20
40
60
140
200
Pan
PARTICLE SIZE DISTRIBUTION(SIEVE ANALYSIS)
Sieve No Retained % retained Cumulative
in mm
retained %
4.75
2
0.85
0.425
0.25
0.106
0.075
wt
1.3
6.5
55.6
131.5
114.5
146.4
24.1
18.2
T=498.1
0.26
1.3
11.16
26.4
22.99
29.4
4.84
3.65
T=100
0.26
1.56
12.72
39.12
62.11
91.61
96.45
100
T=100
% finer
99.74
98.44
87.28
60.88
37.89
8.39
3.55
0
T=0
Grain
sizes
Gravel
Gravel
Sand
Sand
Sand
Sand
Sand
Sand
Weight of soil sample-500g
1. Note: % retained and cumulative % retained should be 100% if the experiment was
well conducted, provided the sieves have no tears.
2. %finer should be zero if no particle was let out.
3. To check if the test was properly done, sum the retained weights in the sieve and
subtract from the original weight, then divide by the original weight x 100
4. Retained weight-weight of sample retained in size.
5. % Retained= retained weight/total weight of sample x100.
6. Cumulative retained %= cumulative sum of % retained
7. % finer-100- cumulative retained%
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