Q2 The figure below gives the grain-size distribution of twa soils. 100 80 Soil A 60 Soil B 40 20 1.0 0.1 0.01 0.001 Particle diameter (mm)-log scale The liquid and plastic limits of minus No. 40 sieve fraction of the soils are as follows: Soil A Soil B Liquid limit 30 26 Activate Winde Goettng Plastic limit 22 20 aCt Classify the soils according to USCS and ASTM-CS. Percent finer

Q2 The figure below gives the grain-size distribution of twa soils. 100 80 Soil A 60 Soil B 40 20 1.0 0.1 0.01 0.001 Particle diameter (mm)-log scale The liquid and plastic limits of minus No. 40 sieve fraction of the soils are as follows: Soil A Soil B Liquid limit 30 26 Activate Winde Goettng Plastic limit 22 20 aCt Classify the soils according to USCS and ASTM-CS. Percent finer

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter2: Soil Deposits-origin, Grain-size, And Shape

Section: Chapter Questions

Problem 2.14P

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• Particle size analyses were carried out on two soils-Soil A and Soil B-and the particle size distribution curves are shown in Figure % Finer Clay 100 90 80 70 60 50 40 30 20 10 0 0.001 + Silt Soil A Sand Soil B 0.01 0.1 1 Particle size (mm) - log scale Gravel 10 Soil A B 1. Classify these soils according to USCS and ASTM-CS 2. Is either of the soils organic? LL 26 (oven-dried; assume same for not dried) Nonplastic PL 18
% Finer • Particle size analyses were carried out on two soils-Soil A and Soil B-and the particle size distribution curves are shown in Figure 100 90 80 70 60 50 40 30 Clay 20 10 0 0.001 + Silt 0.01 Soil A Sand Soil B 0.1 1 Particle size (mm) - log scale Gravel 10 Soil A LL 26 (oven-dried; assume same for not dried) B Nonplastic 1. Which of the two soils, in your opinion, is a better material for the core of a rolled earth dam? PL 18
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The sieve analysis of (2) soils and the liquid and plastic limits of the fraction passing through the No. 40 sieve are given in the folllowing table. 1. Classify the soils according to Unified soil classification system (USCS) given the group symbol and name 2. Classify the soils according to AASHTO sistem and find the group index (GI) D10 Soil A B 4 98 100 Seive No % passing 20 40 50 28 100 99 10 86 100 60 100 200 18 14 10 95 90 73 Attereberg limits L.L P.L N.P 27 55 D30 D60 1.5 0.075 0.43 0.001 0.003 0.053
Answer ALL Questions Time: 2 Hours Q3: Classify the following soil by using the Unified soil classification system. Give the group symbols and the group names. Table 1. Sample 1 Grain Size Results (ASTM D422). Table 2. Atterberg Limits Results (ASTM D4318). Sleve No. Dia. (mm) % Passing Sample PL LL % in 12.7 100 G0 40 14 4.75 97 #10 2 94 #20 0.85 84 # 40 0.425 57 #60 0.25 32 140 0.106 15 #200 0.075 100 90 Atterberg Limit Results: LL = 60%, PL = 40% E 80 * 70- 60 - 50 40 30- a 20 10 1 30 a40 100 0.1200 10 80 0.01 Particle Diameter (mm) Answer ALL Questions Time: 2 Hours 70 CH or OH 60 A-line PI = 0.73(LL - 20) Or 50 40 30 CL MH OL 20 or CL-ML OH ML 10 - or OL 10 16 20 30 40 50 60 70 80 90 100 Liquid limit Figure 5.3 Plasticity chart Percent (%) Finer by Weight Plasticity index U-line PI = 0.(LL - 8) O Cengage Learning 2014
The questions are in the pictures , Solve question 2 and 3. Show your solutions pls
determine the group symbol and index for soil a, b and c.
Q 02: (CLO2) (a) Sieve and hydrometer analysis for two soils are given in the following, calculate the amount of Gravel Sand and Clay according to AAHTO and Unified Soil Classification system for both soils. Also mention which soil is coarse soil in this case and why? Soil 1 Soil 2 Diameter or Sieve No. Mass Retained Diameter or Sieve No. Mass Retained (g) (g) % in ½ in # 4 % in ½ in # 4 15.48 #10 #10 61.92 112.23 49.80 Sieve # 20 #20 Analysis #40 # 40 #60 30.1 #60 51.10 #100 36.4 #100 50.31 # 200 23.1 27.0 19.23 Pan 290.3 Pan No hydrometer analysis Diameter (um) % Finer Hydrometer Analysis 45 10 61 42 37 1 27 (b) What is the difference between Clay and Clay sized non cohesive soils?
Question 3 The sieve analysis of soil and the liquid and plastic limits of the fraction passing through the No. 40 sieve are given below. Classify the soils using the AASHTO classification system and give the group indexes. % Passing No. 10: 48 % Passing No. 40: 28 % Passing No. 200: 6 LL = - %3D PL = NP Group classification: Blank 1 Group index: Blank 2
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Classify the group symbol of the soil by USCS using the data given below: Percent passing the #4 sieve 68 Percent passing the #200 sieve 22 Liquid Limit 34 Plastic Limit 17 Group of answer choices SM SW SP SC
Question 5 The sieve analysis of soil and the liquid and plastic limits of the fraction passing through the No. 40 sieve are given below. Classify the soils using the AASHTO classification system and give the group indexes. % Passing No. 10: 98 % Passing No. 40: 80 % Passing No. 200: 50 LL = 38 %3D PL = 29 Group classification: Blank 1 Group index: Blank 2