The wet density at the maximum density is 120 pounds per cubic foot and optimum water...
The wet density at the maximum density is 120 pounds per cubic foot and optimum water content is 9%. The specific gravity is 2.81. The soil is to be compacted to a minimum of 90% of the maximum density. What dry density must the soil be compacted to in the field?
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The wet density at the maximum density is 120 pounds per cubic
foot and optimum water...
2. [10] A segment of interstate highway requires the construction of an embankment of 500,000 yds. The embankment fills to be compacted to a minimum of 90% of Modified Proctor maximum dry den...
2. [10] A segment of interstate highway requires the construction of an embankment of 500,000 yds. The embankment fills to be compacted to a minimum of 90% of Modified Proctor maximum dry density. A source of suitable borrow has been located for construction of the embankment. Tests showed that the required dry density can be achieved with the existing moisture content of the borrow pit material. The following data is provided: Dry unit weight of soil in the borrow pit...
A proctor test was performed on a soil that has a specific gravity of solids of 2.71. The followi...
A proctor test was performed on a soil that has a specific gravity of solids of 2.71. The following results were obtained: Water content Total Unit 1. Finish calculation and plot Weight (Ib/ftA3) compaction curve 10 13 16 2. What is the max. dry unit weight? 3. What is the optimum moisture 106 119 125 129 128 123 content? What range of moisture is permitted if a contractor must achieve 90% compaction? 4. 20 5. What volume of water must...
The results of a standard Proctor test (ASTM performed in a standard mold with V-1/30 ft...
The results of a standard Proctor test (ASTM performed in a standard mold with V-1/30 ft are given below Weight of wet soil Water content in the mold (Ibs 3.26 4.15 4.67 4.02 3.63 8.4 10.2 12.3 14.6 16.8 a) Plot the data on a plot of dry unit weight versus water content and determine the maximum dry unit weight and the optimum water content. As the geotechnical engineering consultant involved in the project, based on the results obtained in...
Question 13 of 20 1 Points After compaction, the wet (or total) density of a compacted...
Question 13 of 20 1 Points After compaction, the wet (or total) density of a compacted highway base is 120 pcf, and its dry density is 110 pcf. The soil report shows that the soil in the highway base has a maximum dry density of 125 pcf. What is the % compaction achieved? %Compaction Achieved Dry Density Achieved*100/Maximum Dry Density A. 96% OB. 88% OC. 104%
For the data in Fig. 5.1: (a) Estimate the maximum dry density and optimum water content...
For the data in Fig. 5.1: (a) Estimate the maximum dry density and optimum water content for both the standard curve and the modified Proctor curve. (b) What is the placement water content range for 90% relative compaction for the modified Proctor curve and 95% relative compaction for the standard Proctor curve? (c) For both curves, estimate the maximum placement water content for the minimum compactive effort to achieve the percent relative compaction in part (b) Reference: Figure 5.1 2.0...
A sandy soil has a maximum void ratio (emax) of 0.63 and a minimum void ratio...
A sandy soil has a maximum void ratio (emax) of 0.63 and a minimum void ratio (emin) of 0.36. The soil is compacted to a dry unit of 17.8 Kn/m at a moisture content of 1896. The specific gravity of the solids is 2.7. What is the relative density of the soil after compaction?
the only question to answer are 2-5 2-7 2-10 2-17 2-19 thank you CHAPTER Two 2-3....
the only question to answer are
2-5
2-7
2-10
2-17
2-19
thank you
CHAPTER Two 2-3. An undisturbed chunk of soil has a wet weight of 62 lb and a volume of o.s6 ft. When dried out in an oven, the soil weighs S0 Ib. If the specific gravity o solids is found to be 2.64, determine the water con- tent, wet unit weight of soil, dry unit soil. 2-13. The wet unit weight of a soil sample is 18.55...
3. Modified Proctor compaction test results for a soil at a construction site indicated that the...
3. Modified Proctor compaction test results for a soil at a construction site indicated that the maximum dry density Ya = 120 lb/A’ at an optimum water content wopt = 9.0%. Assuming specific gravity of the mineral solids Ga=2.67, calculate: (a) the void ratio at the maximum dry density (b) the degree of saturation S at maximum dry density.
A soil sample has a gravity density of 22 kN / m3 and a water content...
A soil sample has a gravity density of 22 kN / m3 and a water content of 10%. What is the dry gravity density of the sample? If the dry density, wet density and grain density of a soil sample are 1.6 g / cm3, 1.84 g / cm3 and 2.56 g / cm3, respectively, what will be the porosity of the sample?
Compaction 1. Why do we compact soils to 90 or 95% Standard Proctor (.e. maximum dry...
Compaction 1. Why do we compact soils to 90 or 95% Standard Proctor (.e. maximum dry unit weight) instead of 100% Standard Proctor? 2. At what saturation is the theoretical minimum void ratio achieved? 3. The following data were determined from a compaction test for a soil with a specific gravity of solids = 2.65 Water content Total Unit Weight (lb/ft) 10 98 106 119 125 128 124 119 (%) Graph the compaction curve (dry unit weight versus water content),...
2. [10] A segment of interstate highway requires the construction of an embankment of 500,000 yds. The embankment fills to be compacted to a minimum of 90% of Modified Proctor maximum dry density. A source of suitable borrow has been located for construction of the embankment. Tests showed that the required dry density can be achieved with the existing moisture content of the borrow pit material. The following data is provided: Dry unit weight of soil in the borrow pit...
A proctor test was performed on a soil that has a specific gravity of solids of 2.71. The following results were obtained: Water content Total Unit 1. Finish calculation and plot Weight (Ib/ftA3) compaction curve 10 13 16 2. What is the max. dry unit weight? 3. What is the optimum moisture 106 119 125 129 128 123 content? What range of moisture is permitted if a contractor must achieve 90% compaction? 4. 20 5. What volume of water must...
The results of a standard Proctor test (ASTM performed in a standard mold with V-1/30 ft are given below Weight of wet soil Water content in the mold (Ibs 3.26 4.15 4.67 4.02 3.63 8.4 10.2 12.3 14.6 16.8 a) Plot the data on a plot of dry unit weight versus water content and determine the maximum dry unit weight and the optimum water content. As the geotechnical engineering consultant involved in the project, based on the results obtained in...
Question 13 of 20 1 Points After compaction, the wet (or total) density of a compacted highway base is 120 pcf, and its dry density is 110 pcf. The soil report shows that the soil in the highway base has a maximum dry density of 125 pcf. What is the % compaction achieved? %Compaction Achieved Dry Density Achieved*100/Maximum Dry Density A. 96% OB. 88% OC. 104%
For the data in Fig. 5.1: (a) Estimate the maximum dry density and optimum water content for both the standard curve and the modified Proctor curve. (b) What is the placement water content range for 90% relative compaction for the modified Proctor curve and 95% relative compaction for the standard Proctor curve? (c) For both curves, estimate the maximum placement water content for the minimum compactive effort to achieve the percent relative compaction in part (b) Reference: Figure 5.1 2.0...
A sandy soil has a maximum void ratio (emax) of 0.63 and a minimum void ratio (emin) of 0.36. The soil is compacted to a dry unit of 17.8 Kn/m at a moisture content of 1896. The specific gravity of the solids is 2.7. What is the relative density of the soil after compaction?
the only question to answer are
2-5
2-7
2-10
2-17
2-19
thank you
CHAPTER Two 2-3. An undisturbed chunk of soil has a wet weight of 62 lb and a volume of o.s6 ft. When dried out in an oven, the soil weighs S0 Ib. If the specific gravity o solids is found to be 2.64, determine the water con- tent, wet unit weight of soil, dry unit soil. 2-13. The wet unit weight of a soil sample is 18.55...
3. Modified Proctor compaction test results for a soil at a construction site indicated that the maximum dry density Ya = 120 lb/A’ at an optimum water content wopt = 9.0%. Assuming specific gravity of the mineral solids Ga=2.67, calculate: (a) the void ratio at the maximum dry density (b) the degree of saturation S at maximum dry density.
Compaction 1. Why do we compact soils to 90 or 95% Standard Proctor (.e. maximum dry unit weight) instead of 100% Standard Proctor? 2. At what saturation is the theoretical minimum void ratio achieved? 3. The following data were determined from a compaction test for a soil with a specific gravity of solids = 2.65 Water content Total Unit Weight (lb/ft) 10 98 106 119 125 128 124 119 (%) Graph the compaction curve (dry unit weight versus water content),...
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