For a given soil sample, n= 0.43 and G₁ = 2.66. Calculate the dry unit weight and degree of saturation. Show complete solutions.
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For a given soil sample, n= 0.43 and G₁ = 2.66. Calculate the dry unit weight and degree of saturation.
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- 1. From the following data of a soil sample: Sample size 3.81 cm dia. x 7.62 cm ht. Wet weight = 1.668 N Oven-dry weight = 1.400 N Specific gravity = 2.70 Detemine the water content (%), dry unit weight (kN/m3), bulk unit weight (kN/m3), void ratio, and the degree of saturation (%).The consistency limits of a soil sample are: LL=52%, PL=35%, SL=17%. If a specimen of this soil shrinks from a volume of 10 cc at liquid limit to 6.1 cc at plastic limit, determine the specific gravity of solids. Answer should be Gs=2.65.1. A 1 m³ sample of moist soil weights 1800 kg. The water content is 10%. Assume p, is 2700 kg/m³. With this information, fill in all the blanks on the phase diagram. After your phase diagram is complete, compute void ratio, porosity and dry density. Show all your calculations. V 4 V Air Water Soil A M + M
- The coefficient of permeability for a fine-grained soil is determined in a laboratory by use of a falling-head test. Test conditions and results are as indicated below. Determine the coefficient of permeability, then indicate the probable soil classification. Length of soil sample = 150 mm Cross-sectional area of sample = 1,140 mm2 Cross-sectional area of standpipe = 200 mm2 At the start of the test, the water level in the supply standpipe is 1 m above the top of the permeameter. One hour after start, the water level in the supply standpipe is 0.95 m above the top of the permeameter.6. A soil sample of diameter 37.5 mm and length 75 mm has a wet weight of 1.32 and dry weight of 1.1 N. Determine the degree of saturation, porosity, bulk unit weight and dry unit weight.7. Given are the results from the liquid limit and plastic limit test for a soil. Calculate: a. Liquid Limit b. Plasticity Index Liquid Limit Test Number of Blows (N) Moisture Content (%) 15 42 20 40.8 28 39.1 Plastic Limit is 18.7%.
- Let us assume that a soil sample taken in the field is taken and it must be identified by the SUCS Method and AASHTO Method. Moisture content = 5.75% Limit liquid = 53.5 Plastic limit = 31.6 Granulometry Sieve % Pass No. 4 100 # 40 68 # 200 54.3 Do you select the best answer? a) Inorganic silt and sand, with low plasticity b) Inorganic clay with low plasticity c) Clay silt, traces of gravel, dark BrownThe consistency limits of a soil sample are:LL=52%, PL=35%, SL=17%. If a specimen of this soil shrinks from a volume of 10 cc at liquid limit to 6.1 cc at plastic limit, determine the specific gravity of solids. FIND THE Gs of solids.Laboratory compaction test results on a clayey soil are listed in the table below. Moisture content (%) Dry unit weight (kN/m³) 6 14.80 8 17.45 9 18.52 11 18.9 12 18.5 14 16.9 The following are the results of a field unit weight determination test on the same soil with the sand cone method: Calibrated dry density of Ottawa sand = 1,560 kg/m³ Calibrated mass of Ottawa sand to fill the cone = 0.565 kg Mass of jar + cone + sand (before use) = 7.59 kg Mass of jar + cone + sand (after use) = 4.78 kg Mass of moist soil from hole = 2.85 kg Moisture content of moist soil = 15.2% Determine: a. Dry unit weight of compaction in the field. (Enter your answer to three significant figures.) Ya = ]kN/m³ b. Relative compaction in the field. (Enter your answer to two significant figures.) R = |%
- PROBLEM 1 The following are given for a specimen of soil: M = 300 g, Msolid = 170 g, Gs = 2.72 and S = 70%. Determine: a. Total Volume of the soil sample. b. Porosity of the specimen. C. Volume of water to be added to make the soil fully saturated.1. (i) A dry soil has a void ratio of 0.65 and its grain specific gravity is = 2.80. What is its unit weight?(ii) Water is added to the sample so that its degree of saturation is 60% without any change in void ratio. Determine the water content and unit weight.(iii) The sample is next placed below water. Determine the true unit weight (not considering buoyancy) if the degree of saturation is 95% and 100% respectively. 2. A sample of saturated soil has a water content of 35%. The specific gravity of solids is 2.65. Determine its void ratio, porosity, saturated unit weight and dry unit weight 3. For a given soil, the void ratio e, water content w, and specific gravity Gs are found to be 0.50, 15%, and 2.65, respectively. Find: (a) Total unit weight of the soil γt (b) Degree of saturation S (c) Dry unit weight γd if the water in the void is removed 4. A shrinkage limit test for a saturated specimen had the initial volume Vi = 21.35 cm3 and initial weight Wi = 37 gf (…5. Following is the result of a modified proctor test. Determine the maximum dry unit weight, void ratio and saturation at optimum moisture content and energy of compaction. Make a tabulation of all your results. Volume of Mold (m³) Weight of Moise Soil in Mold (kN) OF Moisture Content 0.000945 10 0.000945 12 0.000945 14 0.000945 0.0177 16 0.000945 0.0173 18 0.000945 0.0166 20 COR