Example 2.5 An oven dry soil sample of volume 250 cc weighs 430 g. If the specific gravity of solids is 2.70, what is the water content when the soil becomes fully saturated without any change in its volume? What will be the water content which will fully saturate the sample and also cause an increase in volume equal to 10 % of the original dry volume? Use phase diagrams.
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- 3. A soil sample was taken with a cylindrical metal core having a volume of 300cm³. The soil was saturated with water and then drainage water was allowed to drip. Meanwhile, evaporation of water from the soil was prevented. The drained soil sample weighed 500 g before oven drying and 350 g after oven drying. Calculate the following: a. bulk density (p6) b. moisture content by mass(%0m) and by volume (%0v) c. porosity (assume ps = 2.65 g/cm³) d. cm of water per 100 cm depth of soil %3DRead the question carefully and give me right solution. Provide detailed solution with clear calculations. The hydraulic conductivity of a soil sample, measured at 25C, was 0.005 cm/s using water as the test fluid (density = 997.2 [kg m–3 ], viscosity = 0.0008872 [kg m–1 s –1 ]. Determine the conductivity for ethanol at 10C, density = 798 [kg m–3 ], viscosity = 0.001394 [kg m– 1 s –1 ]2. The sieve analysis data for a granular soil are given below. % passing 19 mm sieve =100 % passing 4.75 mm (4 sieve) = 61 % passing 2 mm = 45 % passing 0.075 mm (200 sieve) = 16 % passing 0.06 mm (4 sieve) = 13 % passing 0.05 mm ( sieve) = 8 % passing 0.002 mm (4 sieve) = 5 What are the percentages of gravels, sands and fines within this soil, based on the Unified Soil Classification System (USCS), AASHTO, USDA and MIT Standards?,
- For the two systems shown below (not to scale), the following are given. • Ah is the same for both systems. • The length of k₂ soil is twice the length of k₁ soil. • The cross-sectional areas of the soil samples are the same. • k₂= 2k₁ (Permeabilities) • q₁ = 100 cm³/hour Find q2 9₁ Ah 921 k k₂4. The results of liquid limit testing on 3 samples of a soil are shown below. sample 1. 2 3 mass (g) 20 mass mass (g) emply can (M.) wet soil + can (M.) dry soil + can (M) moisture content: w (%) Number of cranks 20 20 35 35 28.82 36 28.15 30.38 4 10 30 Calculate the moisture content of cach of the 3 samples. Show your calculations below and then put your answers in the chart above. M,- M, м, - м, x100%76 .ll Q3.png The data from standard and modified proctor test on a soil sample (density of solids: 2680 kg/m3 ) are provided below: Standard proctor test Modified proctor test Dry density (kg/m) 1691 Dry density (kg/m') 1873 Water content (%) Water content (%) 9.3 9.3 1715 11,8 1910 12.8 1755 14.3 1803 15.5 1747 17.6 1699 18.7 1685 20.8 1641 21.1 1619 23 a) Plot the compaction curves (both standard and modified in one graph). b) Establish the maximum dry density and optimum water content for each test.
- Give me right solution. The weight of a soil sample is 186 g, the weight of water in the soil is 38 g. is. The volume of this soil, which has a grain specific gravity of 2.71, is 100 cm3. In the light of the information given, the saturated unit volume weight of this soil is ?A soil sample weighing 455 grams when brought from the field in a cylinder of 300 cm3 volume, weighed 375 grams when dried. The soil particles displaced 145 cm3 of water. Determine the particle density and and real specific density ; bulk density and apparent specific density ; moisture content wet & dry wt basis and volumetric basisQuestion 2 A soil has a water content of 25 %, a void ratio of 0.7, and a specific gravity of solids of 2.7. (a) On the phase diagram shown below, choose the total volume to be equal to one, and fill up all other quantities. Use Kg for mass and m³ for volume. Volume (m³) V₁ Vy Vw Vs AIR WATER SOLIDS Phase Diagram Mass (Kg) Mw X Ms (b) Use the phase diagram to calculate the following quantities. (i) total density (ii) dry density (iii) degree of saturation (iv) saturated density (assume no volume change) M₁
- Can u solve ?(readable) A soil specimen is 38 mm in diameter and 76 mm long, and in its natural conditionweighs 168.0 g. When dried completely in an oven, the specimen weighs 130.5 g. The value ofGs is 2.73. What is the degree of saturation of the specimen?Please answer the question below. It would be a big help. Thank you. Please be clear with your answer. Box the final answer. Given the following characteristics of a soil sample: Volume = 0.5 ft3Mass = 56.7 lbThe solids specific gravity of 2.69. After oven drying, the mass of the soil has 48.7 lbs.a) What is the density of the in-situ soil?b) What is the porosity of the in-situ soil?c) What is the degree of saturation of the in-situ soil?During test for water content determination on a soil sample by pycnometer. The following observations were recorded. Mass of wet soil sample = 1000 gm Mass of pycnometer with soil & filled with water 2000 gm Mass of pycnometer filed with water only 1480 gm Specific gravity of solids 2.67 If bulk density of soil is 2.05 gm/ml, The degree of saturation is