6. The results of a standard Proctor Test are tabulated as follows. Volume of Proctor Mold(ft³) Weight of Wet Soil in Mold(lb) Moisture Content(w%) 1/30 3.69 12 1/30 3.62 14 1/30 3.88 16 1/30 3.87 18 1/30 3.87 20 1/30 3.77 21 a. Determine the moist unit weight (ymoist) and dry unit weight (yd). Plot the value of dry unit

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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6. The results of a standard Proctor Test are tabulated as follows.
Volume of Proctor Mold(ft³)
Weight of Wet Soil in Mold(lb) Moisture Content(w%)
1/30
3.69
12
1/30
3.62
14
1/30
3.88
16
1/30
3.87
18
1/30
3.87
20
1/30
3.77
21
a. Determine the moist unit weight (ymoist) and dry unit weight (yd). Plot the value of dry unit
unit weight (yd) versus the value of moisture content (w%) and estimate the maximum dry
unit weight (ydmax) and the corresponding optimum moisture content (w%)
b. Determine the void ratio at the optimum moisture content if G s = 2.68
c. Determine the degree of saturation at the optimum moisture content.
Use the graph form below for plotting the compaction curve.
COMPACTION CURVE
D 20.5
R 20
Y 19.5
U 189
18
| 17.5
T 16.3
W
16
15.5
15 7 9 11 13 151719 212325 27293133 35 37 39
G
Moisture Content (w%)
T (KN/m^3)
Transcribed Image Text:6. The results of a standard Proctor Test are tabulated as follows. Volume of Proctor Mold(ft³) Weight of Wet Soil in Mold(lb) Moisture Content(w%) 1/30 3.69 12 1/30 3.62 14 1/30 3.88 16 1/30 3.87 18 1/30 3.87 20 1/30 3.77 21 a. Determine the moist unit weight (ymoist) and dry unit weight (yd). Plot the value of dry unit unit weight (yd) versus the value of moisture content (w%) and estimate the maximum dry unit weight (ydmax) and the corresponding optimum moisture content (w%) b. Determine the void ratio at the optimum moisture content if G s = 2.68 c. Determine the degree of saturation at the optimum moisture content. Use the graph form below for plotting the compaction curve. COMPACTION CURVE D 20.5 R 20 Y 19.5 U 189 18 | 17.5 T 16.3 W 16 15.5 15 7 9 11 13 151719 212325 27293133 35 37 39 G Moisture Content (w%) T (KN/m^3)
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