2. Plot the particle size distribution curve of the soil between P% as Y-axis and particle size (opening size) (mm) as X-axis on a logarithmic scale.
2. Plot the particle size distribution curve of the soil between P% as Y-axis and particle size (opening size) (mm) as X-axis on a logarithmic scale.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
Soil lab
Particle size distribution (Sieve method)
In addition to that, calculate the value of D25 and D75 and calculate it in curvature

Transcribed Image Text:2. Plot the particle size distribution curve of the soil between P% as Y-axis and particle size (opening
size) (mm) as X-axis on a logarithmic scale.
Particle Size (mm)
100
10
0.1
0.01
100
90
80
70
40
30
20
10
3. From the curve, find the following:
Coefficient of Uniformity (Cu) = D60 / D10
Coefficient of Curvature (C.) = D30 / D10 D60
Passing %

Transcribed Image Text:Opening
Size
Wt. of
empty
sieve (S)
Wt. of Sieve
+ wt. of soil
(S»)
Wt. of soil
Retained %
Cumulative
retained %
Finer
Sieve
(S2- S1)*
100/W
retained
(passing)=
No.
(mm)
(S2-S1)
(C)
100-C
9.5
988
25
1622.9
1801.9
179
17.9
4.75
1586.5
1770.6
184.1
18.41
2.36
1442.1
1657.4
215.3
21.53
0.3
1110.4
1496.6
386.2
38.62
200
828.9
843.8
14.9
1.49
PAN
551.8
570.2
18.4
1.84
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