Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN: 9781305635180
Author: Braja M. Das, Nagaratnam Sivakugan
Publisher: Cengage Learning
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Chapter 5, Problem 5.5P
To determine
Find the void ratio and the degree of saturation at optimum moisture content.
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9. The results of a Standard Proctoretest is tabulated as follows: (CHECK PICTURE)
Determine the maximum dry unit weight of compaction
Determine the void ratio at the optimum moisture content Gs = 2.68
Determine the optimum moisture content
Determine the degree of saturation at the optimum moisture content
For a given sandy soil, emax = 0.75, emin = 0.46, and Gs = 2.68. If the relative density of the soil Dr = 78% and its water content is 9%, determine the following:a) In situ void ratiob) Moist unit weight of compaction in KN/cu.mc) Dry unit weight in KN/cu.m
For a silty clay soil given LL = 43 and PL = 18. Estimate the maximum dry unitweight of compaction that can be achieved by conducting a modified Proctor test. Use Eq attached.
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Fundamentals of Geotechnical Engineering (MindTap Course List)
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- 3. The following table lists the results of a standard Proctor assay. Determine the maximum dry compaction density and the optimum moisture content. Also obtain the void ratio and degree of saturation for optimum moisture content. Assume Gs = 2.68.arrow_forwardThe results of a standard Proctor test are given in the following table. Determine the maximum dry density (kg/m3) of compaction and the optimum moisture contentarrow_forwardProblem # 1. A constant head permeability test is performed on a sample of granular soil. The length of the soil sample is 15 cm and the cross-sectional area is 10 cm^2. If a 24 cm^3 volume of water passes through the oil sample in a 3-minute period and the constant head is 30 cm determine the followinga. Determine the coefficient of permeability of the soil.b. Find the discharge velocity.c. Compute the seepage velocity if the void ratio is 0.64.arrow_forward
- Plot the moisture density curve and determine the maximum dry unit weight of compaction and the optimum moisture content.arrow_forward5. A saturated soil sample has a unit weight of 24.5 Kn/m^3 and Gs = 2.70. Find Dry Unit weight, e, n, and w. 6. For a given soil, the following are known: Gs = 2.74, moist unit weight = 20.6 KN/m^3, and moisture content of 16.6%. Determine the following: Dry Unit weight, Void Ratio, Porosity, Degree of Saturation.arrow_forwardA soil sample has a dry unit weight of 17.92 kN/M3 and a void ratio of 50% .Compute the hydraulic gradient of the quicksand condition .arrow_forward
- For a given soil sample, n= 0.43 and G₁ = 2.66. Calculate the dry unit weight and degree of saturation. Show complete solutions.arrow_forwardThe dry unit weight of a soil sample is 14.8 kN/m3. Given that Gs = 2.72 and w = 17%,determine:a. Void ratiob. Moist unit weightc. Degree of saturationd. Unit weight when the sample is fully saturatearrow_forwardAssuming the fill soil does not change properties, how can the compated soil density exceed 100% standard proctor? a) Increased compaction energy b)Increased Strength c) Increased Plasticity Index d) Decreased permeabilityarrow_forward
- The results of a standard Proctor test are given in the following table. Determine the maximum dry unit weight of compaction and the optimum moisture content. Also determine the moisture content required to achieve 90% of ꙋd (max).arrow_forwardThe non-disturbed clay soil sample has a weight of 280 N, a dry weight of 245 N, and a total volume of 14 * 1000 cc. If the specific weight of the soil is 2.7, calculate the water content, void ratio, porosity, and degree of saturation.arrow_forwardAn undisturbed sample of clay is found to have a wet weight of 63 lb, a dry weight of 51 lb, and a total volume of 0.50 ft3. If the specific gravity of soil solids is 2.65, determine the water content, void ratio, and degree of saturation.arrow_forward
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