3. The following results were obtained from sieve analyses and Atterberg limits of three soils: Soil A, B, and C. Hydrometer tests were conducted on the material that passed the No. 200 sieve for Soil A and Soil C. The ratio of clay to silt is 4:1 for Soil A and 1.5:1 for Soil C. The Atterberg limits of the <#40 fractions of the three soils are: Soil A: plastic limit = 40% liquid limit = 65%; non-plastic Soil B: Soil C: liquid limit = 42%; plastic limit=9%
3. The following results were obtained from sieve analyses and Atterberg limits of three soils: Soil A, B, and C. Hydrometer tests were conducted on the material that passed the No. 200 sieve for Soil A and Soil C. The ratio of clay to silt is 4:1 for Soil A and 1.5:1 for Soil C. The Atterberg limits of the <#40 fractions of the three soils are: Soil A: plastic limit = 40% liquid limit = 65%; non-plastic Soil B: Soil C: liquid limit = 42%; plastic limit=9%
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question

Transcribed Image Text:3. The following results were obtained from sieve analyses and Atterberg limits of three soils:
Soil A, B, and C. Hydrometer tests were conducted on the material that passed the No. 200 sieve
for Soil A and Soil C. The ratio of clay to silt is 4:1 for Soil A and 1.5:1 for Soil C.
The Atterberg limits of the <#40 fractions of the three soils are:
Soil A:
plastic limit = 40%
liquid limit = 65%;
non-plastic
Soil B:
Soil C:
liquid limit= 42%;
plastic limit = 9%
Classify each of these soils according to the USCS.
Sieve No.
4
10
20
40
100
200
Pan
Opening
(mm)
4.75
2.00
0.85
0.425
0.15
0.075
Soil A
0
20.2
25.7
40.4
18.1
27.2
68.2
Mass retained (gram)
Soil B
0
48.2
19.6
60.3
37.2
22.1
Soil C
0
15
98
90
182
109
6
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