Volume of Proctor Mold (ft3) Weight of Wet Soil in Mold (lb) Moisture Content (%) 1/30 3.88 0.05 1/30 4.08 0.075 1/30 4.25 0.1 1/30 4.37 0.125 1/30 4.41 0.15 1/30 4.35 0.175 1/30 4.24 0.2 a. Determine the maximum dry unit weight of compaction and the optimum moisture content. b. Given the specific gravity of the soil is 2.70, calculate the void ratio and degree of saturation at optimum moisture content. c. Determine the moisture content required to achieve 95% of maximum unit weight (on the dry side of optimum). What is the void ratio and degree of saturation corresponding to this moisture content?
| Volume of Proctor Mold (ft3) | Weight of Wet Soil in Mold (lb) | Moisture Content (%) |
| 1/30 | 3.88 | 0.05 |
| 1/30 | 4.08 | 0.075 |
| 1/30 | 4.25 | 0.1 |
| 1/30 | 4.37 | 0.125 |
| 1/30 | 4.41 | 0.15 |
| 1/30 | 4.35 | 0.175 |
| 1/30 | 4.24 | 0.2 |
a. Determine the maximum dry unit weight of compaction and the optimum moisture content.
b. Given the specific gravity of the soil is 2.70, calculate the void ratio and degree of saturation at optimum moisture content.
c. Determine the moisture content required to achieve 95% of maximum unit weight (on the dry side of optimum). What is the void ratio and degree of saturation corresponding to this moisture content? How do these values compare to those at optimum moisture content?
Data given
| vol. of mold (ft3) | weight of wet soil (lb) | moisture content |
| 0.0333 | 3.88 | 0.05 |
| 0.0333 | 4.08 | 0.075 |
| 0.0333 | 4.25 | 0.1 |
| 0.0333 | 4.37 | 0.125 |
| 0.0333 | 4.41 | 0.15 |
| 0.0333 | 4.35 | 0.175 |
| 0.0333 | 4.24 | 0.2 |
G = 2.7
Find:
(a) Determine the maximum dry unit weight of compaction and the optimum moisture content.
(b) calculate the void ratio and degree of saturation at optimum moisture content.
(d) Determine the moisture content required to achieve 95% of maximum unit weight
(e) Void ratio and degree of saturation corresponding to this moisture content
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