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- A sample of soil having a mass of 360 g is to be placed into a cylinder whose volume is 750 cm³. An additional volume of 573 cm³ of water is required to fill the container with moisture content = 22.5% and GS = 2.60. 1. Compute the bulk unit weight. a. 6.16 kN/m³ b. 16.25 kN/m³ c. 18.19 kN/m³ d. 19.95 kN/m³ 2. Compute the submerged unit weight. a. 8.17 kN/m³ b. 9.42 kN/m³ c. 10.02 kN/m³ d. 12.18 kN/m³ 3. Compute the porosity. a. 0.56 b. 0.46 c. 0.36 d. 0.26Calculate the coefficient of gradation, Cc. ? Classify the soil by AASHTO and USCS system. (LL = 30, PL = 10) ? Use this given M=Mass of soil retained in pan +∑Mass reatianed in each sieve⇒M=617 gM=Mass of soil retained in pan +∑Mass reatianed in each sieve⇒M=617 g Sieve No. Opening Size (mm) Mass retained (g) %Mass retained=MiM×100=MiM×100 %Cumulative mass retained % Finer 4 4.750 28 =28617×100%=4.54%=28617×100%=4.54% 4.54 95.46 10 2.0 42 =42617×100%=6.81%=42617×100%=6.81% 11.35 88.65 20 0.850 48 =48617×100%=7.78%=48617×100%=7.78% 19.13 80.87 40 0.425 128 =128617×100%=20.74%=128617×100%=20.74% 39.87 60.13 60 0.250 221 =221617×100%=35.82%=221617×100%=35.82% 75.69 24.31 100 0.150 86 =86617×100%=13.94%=86617×100%=13.94% 89.63 10.37 200 0.075 40 =40617×100%=6.48%=40617×100%=6.48% 96.11 3.89 Pan 24 =24617×100%=3.89%=24617×100%=3.89% 100 0 Now, to plot the GSD curve, the % finer is kept on the vertical axis and the opening size are kept on the horizontal axis -…The weight of a cylindrical clay soil sample with a diameter of 39mm and a height of 78mm was 203.6gr.have been weighed. Its weight after being thrown in the oven was determined as 165.2gr. Specific gravity of this soil Gs= 2.69If (Gs=γs/γw), then the ground in this case;a) Natural unit weightb) Water contentc) Dry unit volume weightd) vacancy ratee) Calculate the percentage of saturation? (unit volume weight of water is 1.0 gr/cm3will be taken.)
- 2A sample of soil obtained from a borrow pit has a wet weight of 16 kg.The total volume occupied by the sample when in the ground was8490cm. A small portion of the sample is used to determine the watercontent. The wet sample weighs 150g. After drying, it weights 125g (a) What is the water content of the sample?(6) Determine the wet and the dry unit weights of the soil in the borrowpit.6. 1kg of soil sample, placed after a period of time, the moisture content from 25% to 20%, the water in the soil decreased ( ).A. 0.06kg B. 0.05kgC. 0.04kg D. 0.03kg 8. When calculating the time factor Tv, if the soil is drained on one side, H in the equation is taken as the thickness of the soil layer ( ).A. half B. double C. 2 times D. 4 timesCalculate the Gs of soil sample - Mass of empty clean pycnometer= 41.76 gm Mass of empty clean pycnometer + dry soil = 67.52 gm Mass of pycnometer + dry soil + water = 157.62 gm Mass of pycnometer + water =? Gs =? Write your comment about types of soil according to the result of Gs .
- 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.A sand cone in place unit test was conducted on the field during the construction of the embanklment in CALAX. The following data were obtained in the field: Moisture content of soil from the test hole+ 12.8% ; Weight of sand to fill the funnel(cone) = 320g; Weight of weight soil from the test hole= 750g; Unit weight of sand= 15.4 kN/m3 and Weight of sand used to fill the test hole and thefunnel of sand-cone device=870 g. Compute for the relative compaction (in percent) in the field if the maximum dry unit weight of the soil is 21.30 kN/m3. a. 94 b. 90 c. 88 d. 92A sand cone in place unit test was conducted on the field during the construction of the embanklment in CALAX. The following data were obtained in the field: Moisture content of soil from the test hole+ 12.8% ; Weight of sand to fill the funnel(cone) = 320g; Weight of weight soil from the test hole= 750g; Unit weight of sand= 15.4 kN/m3 and Weight of sand used to fill the test hole and thefunnel of sand-cone device=870 g. Compute for the relative compaction (in percent) in the field if the maximum dry unit weight of the soil is 21.30 kN/m3.
- In 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.A 500g (assume no wastes) of dry soil was used for a soil mechanical analysis. Themass of soil retained in each sieve, and hydrometer analysis data are given in Table 1and Table 2, respectively.Table 1. Sieve Analysis DataUS SieveDiameter Mass Ret., g2.00 mm 101.40 mm 20500 μm 135150 μm 60250 μm 145850 μm 6075 μm 45 Particle PercentDiameter Passing, %20 μm 2.510 μm 1.52 μm 11. What is the value of the percent passing for sieve with 2 mm. opening inpercentage?2.What is the value of the percent passing for sieve with 150 μm. opening inpercentage?3.What is the value of the coefficient of uniformity?4.What are the percentages of gravel, sand, and Fines using the limits indicated byUSCS?5.What are the percentages of gravel,…Question 31 Soil placed on a can has been weighed before and after an oven-drying procedure. The procedure yields the following results: Mass of soil + can before placing in the oven 80.9 g. Mass of soil + can after placing in the oven 74.1 g. Mass of can 30.9 g. If the specific gravity of the soil is 2.64, and the void ratio is 0.573, what will be the moist unit weight (kN/m3) of the soil? Round off to two decimal places.