A SOIL SAMPLE WAS TAKEN FROM A SITE AND WAS PLACED IN A CUBICAL CONTAINER WITH ONE SIDE EQUAL TO 0.1m. THE NET WEIGHT OF THE SOIL IS FOUND OUT TO BE 2kN. AFTER OVEN DRYING, THE WEIGHT WAS REDUCED TO 53%. WHAT IS THE UNIT WEIGHT OF THE SOIL AFTER DRYING? *
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- Q2: A 0.01 m' of saturated soil sample has a unit weight of 1.6g/cm3. After it is dried in the oven, the weight of the soil sample reduced to 13.5kg. Use a phase diagram, determine the following: Weight of water for the saturated soil, Ww Water content, wc Ws WATER Void ratio, e Porosity, n SOLID befare trng W. Va SOLID efter eningThe grain-size characteristics of soil re given in the following table. Use Table 2.3 for the analysis. Size (mm) Percent finer 0.425 100 0.1 79 0.04 57 0.02 48 0.01 40 0.002 35 0.001 33 Table 2.3 Particle-Size Classifications Grain size (mm) Name of organization Gravel Sand Silt Clay Massachusetts Institute of Technology (MIT) >2 2 to 0.06 0.06 to 0.002 2 <0.002 76.2 to 2 2 to 0.075 0.075 to 0.002 <0.002 Fines (i.e., silts and clays) <0.075 76.2 to 4.75 4.75 to 0.075 Note: Sieve openings of 4.75 mm are found on a U.S. No. 4 sieve; 2-mm openings on a U.S. No. 10 sieve; 0.075-mm openings on a U.S. No. 200 sieve. See Table 2.5. i.) What is the percentages of gravel, sand, silt and clay according to the MIT system. a.) Gravel – 0%; Sand – 38%; Silt – 30%; Clay – 35% b.) Gravel – 0%; Sand – 37%; Silt – 30%; Clay – 35% c.) Gravel – 0%; Sand – 36%; Silt – 30%; Clay – 35% d.) Gravel – 0%; Sand – 35%; Silt – 30%; Clay – 35% e.) None of the aboveThe grain-size characteristics of soil re given in the following table. Use Table 2.3 for the analysis. Size (mm) Percent finer 0.425 100 0.1 79 0.04 57 0.02 48 0.01 40 0.002 35 0.001 33 Table 2.3 Particle-Size Classifications Grain size (mm) Name of organization Gravel Sand Silt Clay Massachusetts Institute of Technology (MIT) >2 2 to 0.06 0.06 to 0.002 2 <0.002 76.2 to 2 2 to 0.075 0.075 to 0.002 <0.002 Fines (i.e., silts and clays) <0.075 76.2 to 4.75 4.75 to 0.075 Note: Sieve openings of 4.75 mm are found on a U.S. No. 4 sieve; 2-mm openings on a U.S. No. 10 sieve; 0.075-mm openings on a U.S. No. 200 sieve. See Table 2.5. What is the percentages of gravel, sand, silt and clay according to the USDA system a.) Gravel – 0%; Sand – 38%; Silt – 26%; Clay – 35% b.) Gravel – 0%; Sand – 38%; Silt – 27%; Clay – 33% c.) Gravel – 0%; Sand – 38%; Silt – 26%; Clay – 34% d.) Gravel – 0%; Sand – 38%; Silt – 27%; Clay – 35% e.) None of the above
- PROBLEM No. 5 A test of density of soil in place was performed by digging a small hole in the soil, weighing the extracted soil, and measuring the volume of the hole. The soil (moist) weighed 895 g; the volume of the hole was 426 cm³. After drying, the sample weighed 779 g. Of the dried soil, 400 g was poured into a subsequently determined to be 276 cm³. That same 400 g was then vibrated and tamped to volume of 212 cm³. If the specific density is 2.71, determine the following: vessel in a very loose state. Its volume was Moist unit weight in g/cm³. Minimum dry unit weight in g/cm³. Maximum dry unit weight in g/cm³. а. b. С. d. Void ratio in natural state. е. Void ratio in loosest state. f. Void ratio in densest state. g. Relative density of the soil.1- For a soil, suppose that Dio = 0.08 mm, D3o = 0.22 mm, and Dso = 0.41 mm. Calculate the uniformity coefficient and the coefficient of gradation. 2- The following are the results of a sieve analysis: U.S. sieve no. Mass of soil retained (g) 4 10 18.5 20 53.2 40 90.5 60 81.8 100 92.2 200 58.5 Pan 26.5 a. Determine the percent finer than each sieve and plot a grain-size distribution curve. b. Determine Dio, D30, and D6o from the grain-size distribution curve. c. Calculate the uniformity coefficient, Cu. d. Calculate the coefficient of gradation, Cc.QUESTION 1 1. For a soil with De=0.41 mm, D = 0.22mm, and Die = 0.08 mm, calculate the uniformity coefficient and the coefficient of gradation. 2. The following are the results of a sieve and hydrometer analysis. Sieve number/ grain size Analysis Sieve Hydrometer 40 80 170 200 0.04 mm 0.015 mm 0.008 mm 0.004 mm 0.002 mm Draw the grain-size distribution curve. Percent finer 100 97 74 27 11 a) b) Determine the percentages of gravel, sand, silt and clay according to the AASHTO system.
- A liquid limit test on a clay was performed with the following results. The natural water content of the clay is 38% and plastic limit is 21%. Number of Blows 6 12 20 28 32 Water content (%) 52.5 47.1 42.3 38.6 37.5 What is the liquidity index of this clay? (Use Interpolation) Group of answer choices 0.895 0.96 1.08 0.90 Please answer this asap. For upvote. ThanksHomework 7: A cylindrical clay sample of 38 mm in diameter and 76 mm in height. It was brought from the site and it had a total weight of 168 gm, and when dried in the oven, the weight was 130.5 gm. If you know that the specific weight of solid grains is 2.73. Find the moisture content, dry density, voids ratio, porosity, degree of saturation, total density, air content, and air gap ratio.The table shows the laboratory results of the sieve analysis of a sample. Plot the grain size curve of the soil. The soil has a liquid limit of 35% and plasticity index of 26%. SIEVE SIZE (mm) WEIGHT RETAINED 0.25 18.96 0.149 33.18 0.074 45.03 0.052 54.51 0.02 42.66 0.01 11.85 0.004 4.74 0.001 4.74 Pan 21.33 a.) Classify the soil using AASHTO method b.) Classify the soil using USCS method c.) Classify the soil using USDA method Please answer this asap. For upvote. Thank you in advance
- a. 100 cm3 saturated sample of quartz sand is weighed, gravity drained, weighed, oven dried, and weighed again. The saturated, gravity-drained, and oven-dried weights are 130g, 110 g, and 105 g, respectively. Using these data, calculate the following quantities. i. Dry bulk density ii. Porosity iii. Degree of saturation after gravity drainage iv. Specific yield b. Given that the soil sample in part (a) above has porosity of 35%. i. Determine the void ratio of this soil. ii. If 50% of the void space is filled with water, with the remaining 50% filled with air, determine the volumetric water content, θ. iii. and the degree of saturation, S.You are working in a lab and are tasked with determining the percent plant available water for a particular soil sample. You take a field soil sample. The mass of your sample was 152g and it had 18.3% moisture by mass. Then, you place the soil sample in your pressure plate extractor and determine that the soil sample weighs 164.2g when the moisture potential is -33kPa and 130.7g at -1500kPa. What is the percent plant available moisture by mass of this soil sample? Please answer to one decimal place.Q.43 The liquid limit and plastic limit of a soil sample are 50% and 40% respectively. If the volumetric shrinkage at the liquid limit and plastic limit are 42% and 28%, then the shrinkage limit is %.