Folve the phase diagram Falculate e, wc,Sr. Pd.PT, and y' Vr=1 cm³ Air Water Solid
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- Using Unified Soil Classification System, determine the following: (a) Coefficient of Gradation (b) Group Symbol. Passing No. 4 = 47 % Passing No. 200 = 10 % D10 = 3.45 mm %3! D30 = 6.29 mm De0 = 13.72 mm Plasticity for the minus No. 40 fraction: Liquid Limit = 28 % Plastic Limit = 17 % O GC-GM GP-GC O GC O Coef. Of Gradation = 0.84 O GP O Coef. Of Gradation = 3.97In a partially saturated soil, the moisture content W% is 66.67%, the relative specific gravity of solids Ss is 2.5, and the saturated specific gravity of the sample is 1.45 g/cm3. If the volume of air is equal to 8 cm3. Determine the other quantities of the scheme, and calculate: e, n, Gw%, Ym, Yd, Ysat, Y'. Note: Kindly answer all with clear calculations.Classify the soil by IS classification Given:- Liquid limit=22% Plasticity limit=19% Percentage passing through 4.75mm IS sieve=98.5% Percentage passing through 75 micron IS sieve=35% D60=0.22 D30=0.19 D10=0.16
- 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 %3DThe sieve analysis data for a granular soil are given below. % passing 76.2 mm sieve = 98 % passing 4.75 mm sieve = 63 % passing 0.075 mm sieve = 18 What would be the percentage of fine fraction by the USCS system? а. 18% оБ. 16% O c. 63% O d. 35% e. 98%The following are the results from the liquid limit and plastic limit test for a sail Liquid limit = 39.1% Plastic limit=18.7% a. b. C. No. of Blows 15 20 28 LI Moisture Content 42 40.8 39.1 What is the plasticity index of the soil? What is the liquidity index if the water content is 24%? What is the consistency index?
- 5 Problem: For a given inorganic soil, the following are known: Percentage passing No. 4 Sieve... 100 Percentage passing No. 200 sieve.. 77 Liquid limit Plasticity index.... ...... 63 25 70 CH or CL U-b RI40.73(L-20) MH -line OL PIOLL- CL-ML OF ML OH or OL 10 16 20 30 40 50 60 70 80 90 100 Liquid limit Classify the soil by using Unified Sqil Classification System. a) What type of soil is this? b) What is the group symbol of the soil C) What is the group name of the soil?Calculate the coefficient of permeability of a soil sample of 6 cm is height and 50cm2 in cross sectional area, if the quantity of water equal to 450ml passed down in 10minutes under an effective constant head of 40cm. On oven drying, the test specimen weigh 495g. Take Gs as 2.65, calculate the seepage velocity of water during test.Using AASHTO Classification System, determine the following: (a) Group Index (b) Soil Classification Passing No. 10 = 85 % Passing No. 40 = 61 % Passing No. 200 = 47 % Plasticity for the minus No. 40 fraction: Liquid Limit = 42 % Plastic Limit = 34 % O A-7 (3) O A-6 (0) O GI = 2.52 say 3 O A-4 (0) O A-5 (2) O GI = 1.88 say 2 O GI = - 0.64 say 0
- Problem Set 4 2. The following data were obtained from the liquid and plastic limit tests for a soil: Liquid Limit Test: Moisture content, w% 32.35 31.55 31.35 33.62 33.00 Number of blows, N 22 29 32 16 19.00 Plastic Limit Test: Moisture content = 20.62% a) Draw the flow curve from the liquid limit test data and find the liquid limit. (use excel to graph) b) What is the plasticity index of the soil?A 50g sample of soil (oven dry weight) was leached with excess 1 N NH4OAC. After washing away excess ammonium acetate, it was later found that it can hold 0.072g of NH4 .What is the CEC of this soil in cmolc/kg? Select one: a. 8 cmolc/kg b. 16 cmolc/kg c. 24 cmolc/kg d. 30 cmolc/kgThe data from a standard Proctor test are shown in the table below.a. Determine the maximum dry unit weight and the optimum water content.b. Plot the zero air voids line.c. Determine the degree of saturation at the maximum dry unit weight.Diameter of mold 101.4 mmHeight of mold 116.7 mmMass of mold 4196.50 gramsSpecific gravity, Gs 2.722