For a given soil (Gs = 2.72), following are the results of compaction tests conducted in the laboratory. Moisture content (%) Dry unit weight Ya (kN/m³) 12 16.34 14 16.93 16 17.24 18 17.20 20 16.75 22 16.23 After compaction of the soil in the field, sand cone tests (control tests) were conducted at five separate locations. Following are the results: Location Moisture content (%) Moist density, p (kg/m³) 1 15.2 2055 16.4 2060 3 17.2 1971 4 18.8 1980 21.1 2104 The specifications require that a. Ya must be at least 0.95 Yd(max). b. Moisture content w should be within 1-2% of wopt. Make necessary calculations to see which the control tests meet the specifications and determine whether any of the control tests should be rejected.
For a given soil (Gs = 2.72), following are the results of compaction tests conducted in the laboratory. Moisture content (%) Dry unit weight Ya (kN/m³) 12 16.34 14 16.93 16 17.24 18 17.20 20 16.75 22 16.23 After compaction of the soil in the field, sand cone tests (control tests) were conducted at five separate locations. Following are the results: Location Moisture content (%) Moist density, p (kg/m³) 1 15.2 2055 16.4 2060 3 17.2 1971 4 18.8 1980 21.1 2104 The specifications require that a. Ya must be at least 0.95 Yd(max). b. Moisture content w should be within 1-2% of wopt. Make necessary calculations to see which the control tests meet the specifications and determine whether any of the control tests should be rejected.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:For a given soil (G; = 2.72), following are the results of compaction tests conducted in the laboratory.
Moisture
content (%)
Dry unit weight Ya (kN/m³)
12
16.34
14
16.93
16
17.24
18
17.20
20
16.75
22
16.23
After compaction of the soil in the field, sand cone tests (control tests) were conducted at five separate
locations. Following are the results:
Location
Moisture content (%)
Moist density, p (kg/m³)
1
15.2
2055
16.4
2060
3
17.2
1971
4
18.8
1980
5
21.1
2104
The specifications require that
a. Yd must be at least 0.95 yd(max)-
b. Moisture content w should be within 1-2% of
Wopt.
Make necessary calculations to see which the control tests meet the specifications and determine whether
the control tests should be rejected.
any
of
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