❖ Problem 3 A sieve analysis was performed on a soil sample, and the results are tabulated below (Table 3). Table 3: Sieve Analysis – Experimental Data (Problem 3) U.S. Standard Opening (mm) Mass Retained (g) Sieve No. 4 4.75 0.0 0 2.00 0.0 20 0.85 0.0 40 0.425 13.5 60 0.25 43.5 100 0.15 75.4 140 0.106 147.6 200 0.075 168.2 PAN <0.075 230.5 A hydrometer analysis was then performed on the fines content of the soil sample (the remaining mass in the pan). The results of the hydrometer analysis are provided in Table 4 below. Table 4: Sieve Analysis - Results (Problem 3) Particle %Finer Diameter (mm) 0.072 78.20% 0.046 58.20% 0.034 50.40% 0.026 42.80% 0.017 38.10% 0.012 35.40% 0.007 30.20% 0.004 25.70% 0.0032 22.90% 0.0024 20.90% 0.0017 18.20% 0.0012 14.5% Analyze the experimental data and present the results. Be sure to include the following: a) Tabulation of sieve analysis experimental results for %Retained, %RetainedcUM, and %Finer b) Tabulation of hydrometer analysis results for modified %finer c) Plot the grain size distribution curve for granular and fine soil content d) Determine the percentage of gravel, sand, silt, and clay according to AASHTO
❖ Problem 3 A sieve analysis was performed on a soil sample, and the results are tabulated below (Table 3). Table 3: Sieve Analysis – Experimental Data (Problem 3) U.S. Standard Opening (mm) Mass Retained (g) Sieve No. 4 4.75 0.0 0 2.00 0.0 20 0.85 0.0 40 0.425 13.5 60 0.25 43.5 100 0.15 75.4 140 0.106 147.6 200 0.075 168.2 PAN <0.075 230.5 A hydrometer analysis was then performed on the fines content of the soil sample (the remaining mass in the pan). The results of the hydrometer analysis are provided in Table 4 below. Table 4: Sieve Analysis - Results (Problem 3) Particle %Finer Diameter (mm) 0.072 78.20% 0.046 58.20% 0.034 50.40% 0.026 42.80% 0.017 38.10% 0.012 35.40% 0.007 30.20% 0.004 25.70% 0.0032 22.90% 0.0024 20.90% 0.0017 18.20% 0.0012 14.5% Analyze the experimental data and present the results. Be sure to include the following: a) Tabulation of sieve analysis experimental results for %Retained, %RetainedcUM, and %Finer b) Tabulation of hydrometer analysis results for modified %finer c) Plot the grain size distribution curve for granular and fine soil content d) Determine the percentage of gravel, sand, silt, and clay according to AASHTO
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Complete problem 3.
Transcribed Image Text:❖ Problem 3
A sieve analysis was performed on a soil sample, and the results are tabulated below (Table 3).
Table 3: Sieve Analysis – Experimental Data
(Problem 3)
U.S. Standard
Opening (mm)
Mass Retained (g)
Sieve No.
4
4.75
0.0
0
2.00
0.0
20
0.85
0.0
40
0.425
13.5
60
0.25
43.5
100
0.15
75.4
140
0.106
147.6
200
0.075
168.2
PAN
<0.075
230.5
A hydrometer analysis was then performed on the fines content of the soil sample (the remaining
mass in the pan). The results of the hydrometer analysis are provided in Table 4 below.
Table 4: Sieve Analysis - Results
(Problem 3)
Particle
%Finer
Diameter (mm)
0.072
78.20%
0.046
58.20%
0.034
50.40%
0.026
42.80%
0.017
38.10%
0.012
35.40%
0.007
30.20%
0.004
25.70%
0.0032
22.90%
0.0024
20.90%
0.0017
18.20%
0.0012
14.5%
Analyze the experimental data and present the results. Be sure to include the following:
a) Tabulation of sieve analysis experimental results for %Retained,
%RetainedcUM, and %Finer
b) Tabulation of hydrometer analysis results for modified %finer
c) Plot the grain size distribution curve for granular and fine soil content
d) Determine the percentage of gravel, sand, silt, and clay according to
AASHTO
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