Subj: civil engineering / soil mechanics The volume of soil sample measured before oven drying is 120 cm3. The dried weight of the soil sample is 122 g. The percent passing of No. 200 sieve is 63% and the group index is 12.82. The liquidity index and plastic limit are 1.25 and 7.6%, respectively. If the specific gravity of soil is 2.70, compute the following: a. Void ratio b. Dry unit weight c. Dry unit weight at zero air voids

Subj: civil engineering / soil mechanics The volume of soil sample measured before oven drying is 120 cm3. The dried weight of the soil sample is 122 g. The percent passing of No. 200 sieve is 63% and the group index is 12.82. The liquidity index and plastic limit are 1.25 and 7.6%, respectively. If the specific gravity of soil is 2.70, compute the following: a. Void ratio b. Dry unit weight c. Dry unit weight at zero air voids

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter6: Soil Compaction

Section: Chapter Questions

Problem 6.9P

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(c) A sample of clay having a mass of 675 gm was coated with paraffin wax. The combined mass of the clay and the wax was found to be 682 gm. The volume was found by immersion in water as 345 ml. The sample was then broken to open. The water content and specific gravity of solids were found to be 15 % and 2.70 respectively. Calculate the bulk density of soil, its void ratio, and degree of saturation. Take specific gravity of wax as 0.89.
B. Solve the following problems. Write your answer in a long bond paper. Avoid Erasures. 1. The results of the sieve analysis are shown below: a) What is the percentage of the soil retained in No. 200 sieve? b) What is the effective grain size of the soil in mm? c) Determine the uniformity coefficient. Sieve No. 8 Diameter (mm) 4.76 2.38 Mass retained (g) 25 80
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.
Soil mechanics
mpt=541762&cmid%3D103601 Marks 25 Question 1 A sample of AL Batina soil tested in the laboratory. The gradation analysis results are as shown in table Q1. The Atterberg limit tests indicate that the liquid limit is LL = 30% and the plastic limit is PL=27%. Table Q1 Sieve No.# Sieve size (mm) Finer (%) 4 4.75 90 8. 2.36 84 16 1.3 60 30 0.6 30 50 0.2 10 200 0.075 8 i. Determine the uniformity coefficient Marks] ii. Determine curvature coefficient [5 [5 Marks] iii. Classify AL Batina soil according to Unified Soil Classification System (USCS). [10 Marks] iv. Determine the group symbol and group name Marks) [5
2. The following are the results of a sieve analysis. U.S. Mass of soil sieve no. 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 distri- bution curve. b. Determine Du, Dy, and D, for each soil. c. Calculate the uniformity coefficient C. d. Calculate the coefficient of gradation C.
A plastic limit test has been performed on a soil. Threads of the soil that broke at a diameter of 1/8 in. were collected for a moisture content test, which yield the following results: Mass of soil + can before placing in oven 41.30 g Mass of soil + can after removal from oven 37.40 g Mass of can 22.20 g Compute the plastic limit of the soil. Express it in percentage (input the numerical value only without including the % sign).
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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. Thanks
b) Determine D10, D30 and D60 for each soil. c) Calculate the uniformity coefficient and coefficient of gradation Cu and Ccrespectively.
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x=5 , y=6 , z=7