Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN: 9781305635180
Author: Braja M. Das, Nagaratnam Sivakugan
Publisher: Cengage Learning
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Chapter 3, Problem 3.10P
(a)
To determine
Find the void ratio (e).
(b)
To determine
Find the specific gravity of the soil.
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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.
The moist unit weights and degrees of saturation of a soil are given in the following table:
Unit Weight (pcf)
119.04
123.86
S (%)
65
85
Determine the specific gravity of the soil solids.
Determine the porosity of the soil in percent.
Determine the void ratio of the soil in percent.
Please answer this asap. For upvote. Thank you very much
A soil having natural moisture content of 28% has a liquid limit of 54% and plastic limit of 32%.
A. Calculate the plasticity index of the soil.
B. Calculate the liquidity index of the soil.
Chapter 3 Solutions
Fundamentals of Geotechnical Engineering (MindTap Course List)
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- The moist weight of 0.2 ft³ of a soil is 23 lb. The moisture content and the specific gravity of soil solids are determined in the laboratory to be 11% and 2.7, respectively. Calculate the following a. Moist unit weight (lb/ft³) b. Dry unit weight (lb/ft³) c. Void Ratioarrow_forward1: A sample of soil is obtained from a test pit is one cubic foot ( 1ft³) and weighs 140 lb. The entire sample is dried in an oven and found to weigh 125 lb. Calculate the following: B. Moist Unit Weight (pcf)arrow_forward1: A sample of soil is obtained from a test pit is one cubic foot ( 1ft³) and weighs 140 lb. The entire sample is dried in an oven and found to weigh 125 lb. Calculate the following: A. water content(%) B. Moist Unit Weight (pcf) C. Dry Unit Weight (pcf)arrow_forward
- A sample of soil has a volume of 0.57 ft³ and a weight of 57.30 lb. After being dried in an oven, it has a weight of 49.10 lb. It has a specific gravity of solids of 2.66. Compute its moisture content and degree of saturation before it was placed in the oven. Solution: ● ● ● Moisture content: @ = Unit weight of water is: %d Degree of saturation: S = = %; lb/ft³; %.arrow_forwardUsing 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 = 3.97arrow_forward2. The moist weight of 5.56 × 10-3 m³ of a soil is 120.3 × 10-³ kN. The moisture content and the specific gravity of the soil solids are determined in the laboratory to be 10 % and 2.6, respectively. Calculate the following: a. Moist unit weight. (Enter your answer to three significant figures.) |kN/m³ b. Dry unit weight. (Enter your answer to three significant figures.) |kN/m³ c. Void ratio. (Enter your answer to three significant figures.) e = d. Porosity. (Enter your answer to three significant figures.) n = e. Degree of saturation. (Enter your answer to three significant figures.) S = |% f. Volume occupied by water. (Enter your answer to three significant figures.) Vu = dm³arrow_forward
- Determine the following: a.) The plasticity index of soil A. b.) The liquidity index of soil B if its natural moisture content is 48%. c.) The natural moisture content of soil A if its liquidity index is 2.1.arrow_forwardFind the water content of soil if weight of water is 20 g and weight of soil solids is 60 garrow_forwardfind the following: a. What is the value of the percent passing for sieve with 2 mm. opening in percentage? b. What is the value of the percent passing for sieve with 150 μm. opening in percentage? c. What is the value of the Effective Size of soil in mm.? d. What is the value of the coefficient of gradation?e.What is the value of the coefficient of uniformity? f. What are the percentages of gravel, sand, and Fines using the limits indicated by USCS? g. What are the percentages of gravel, sand, silt and clay using the limits indicated by MIT? h. What are the percentages of gravel, sand, silt and clay using the limits indicated by AASHTO? i. What are the percentages of gravel, sand, silt and clay using the limits indicated by USDA?arrow_forward
- 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.arrow_forwardThe 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%arrow_forwardThe soil with Gs = 2.7 and e = 0.8 has been air dried for 6 hours. After %D drying, the moisture content (w) and void ratio (e) reduce to 20% and 0.7, respectively. Determine the air void content after drying. (round off to the whole number, the answer in % but only value without %) Your answerarrow_forward
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