Soil lab Particle size distribution (Sieve method)In addition to that, calculate the value of D25 and D75 and calculate it in curvature 2. Plot the particle size distribution curve of the soil between P% as Y-axis and particle size (openingsize) (mm) as X-axis on a logarithmic scale.Particle Size (mm)100100.10.01100908070403020103. From the curve, find the following:Coefficient of Uniformity (Cu) = D60 / D10Coefficient of Curvature (C.) = D30 / D10 D60Passing % OpeningSizeWt. ofemptysieve (S)Wt. of Sieve+ wt. of soil(S»)Wt. of soilRetained %Cumulativeretained %FinerSieve(S2- S1)*100/Wretained(passing)=No.(mm)(S2-S1)(C)100-C9.5988251622.91801.917917.94.751586.51770.6184.118.412.361442.11657.4215.321.530.31110.41496.6386.238.62200828.9843.814.91.49PAN551.8570.218.41.84

Weight % weight cumu % cumu % sieve size retained retained retained passing 9.5 988…

Answered: 2. Plot the particle size distribution…

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.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter10: Shear Strength Of Soil

Section: Chapter Questions

Problem 10.24CTP

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Question

Soil lab Particle size distribution (Sieve method) In addition to that, calculate the value of D25 and D75 and calculate it in curvature

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 %

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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