PLASTICITY INDEX (PI) What soil type corresponds to the information shown below if the PL is 15. Liquid Limit Moisture content (%) 60% 50% 40% 30% 20% 10% 0% 1 60 50 . 10 100 blow count For classification of fine-grained soils and fine-grained fraction of coarse-grained soils. Equation of "A"-line Horizontal at PI = 4 to LL = 25.5, then PI 0.73 (LL-20) 40 Equation of "U"-line Vertical at LL 16 to PI = 7, then PI = = 0.9 (LL - 8) 30 20 10 7 4 0 0 10 19 CL-ML CL OR OL ML OR OL "U" LINE CH OR OH "A" LINE MH OR OH 16 20 30 40 50 60 70 80 90 100 110 LIQUID LIMIT (LL)

PLASTICITY INDEX (PI) What soil type corresponds to the information shown below if the PL is 15. Liquid Limit Moisture content (%) 60% 50% 40% 30% 20% 10% 0% 1 60 50 . 10 100 blow count For classification of fine-grained soils and fine-grained fraction of coarse-grained soils. Equation of "A"-line Horizontal at PI = 4 to LL = 25.5, then PI 0.73 (LL-20) 40 Equation of "U"-line Vertical at LL 16 to PI = 7, then PI = = 0.9 (LL - 8) 30 20 10 7 4 0 0 10 19 CL-ML CL OR OL ML OR OL "U" LINE CH OR OH "A" LINE MH OR OH 16 20 30 40 50 60 70 80 90 100 110 LIQUID LIMIT (LL)

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Problem 2. The sieve analysis of ten soils and the liquid and plastic limits of the fraction pass- ing through the No. 40 sieve are given below. Classify the soils using the AASHTO classification system and give the group indexes. Soll No. 567699AWN. 4 8 10 No. 10 98 100 100 85 92 48 87 90 100 92 Sleve analysis (percent finer) No. 40 80 92 88 55 75 28 62 76 78 74 No. 200 50 80 65 45 62 6 30 34 8 32 Liquid limit 38 56 37 28 43 32 37 44 Plastic limit 29 23 22 20 28 NP 24 25 NP 35
Question 14 Classify the following soils using the Unified soil classification system. Give the group symbol. No. 4 = 100 No. 200 = 77 LL = = 63 PL 25 %D A) CL В ML MH CH
From the particle size distribution curve, about 61% of the oil is finer than 0.074 mm in diameter. The liquid limit and plastic limit of minus No 40 fraction of the soils are as follows: LL =26, PL= 20. Classify the soil using the USCS.a. CL-MLb. CL-MLc. SP-SCd. CH
Classify the given soils using the Unified Soil Classification System (USCS). Give the group symbols and group names. (Show the path of the classification.) Sieve Analysis (percent finer) Soil No. No. 4 No. 200 LL PL Comments A 94 3 NP Cy = 4.48 and C = 1.22 - В 100 77 63 25 B.
• 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
Question 4 Classify the following soils using the Unified soil classification system. Give group symbols and group names. % Passing No. 4: 99 % Passing No. 200: 76 LL = 60 PL = 32 %3D Group Symbol: Blank 1 Group name: Blank 2 Blank 1 Add your answer Blank 2 Add your answer
Question 18 Classify the following soils using the Unified soil classification system. Give the group symbol. No. 4 = 92 No. 200 = 48 LL = 30 PL = 8 A) SP В GC SM D SC
Classify the following soils by the Unified soil classification system. Give the group na soil Soil 1 2 Sieve analysis (percentage finer) Liquid Plastic No. 4 No. 200 limit limit 98 28.5 33.2 22.6 95 10 30 22 D10 D30 8 D60 0.085 0.12 0.135 Q1)
Question 10 Classify the following soils using the Unified soil classification system. Give the group symbol. No. 4 = 99 No. 200 = 76 LL = = 60 PL = 32 А) СH В CL OH MH
Given the following Sieve Analysis and Atterberg limits results. Answer the following questions: 1- What is the effective diameter of this soil? 2- Calculate the uniformity coefficient and coefficient of gradation 3- Determine the percentage of Gravel, Sand, Fine soils according to USCS. 4- Classify the soil using AASHTO (with GI) & USCS (with group name). Diameter Sieve # % Passing 100 (тm) 90 4 4.75 96 80 3.35 90 70 10 78.8 60 20 0.85 56.8 50 40 0.425 37.8 40 60 0.25 23.6 30 100 0.15 13 20 200 0.075 4.6 10 Рan LL 10 10 0.1 0.01 Diameter PL 5 Percent Passing (%) 2.
Subject: Soil Mechanics A. Classify the Soil Using USCS (with explanation/ justification) Given data: D10 = ? D30= 0.0023mm D60= 0.032mm Liquid Limit= 49% Plastic Limit= 24% CHOICES: a. CL (lean clay with gravel) b. CL ( lean clay with sand) c. ML (silt with gravel) d. ML (Silt with sand)
2. Classify the foloowing soils according to the AASHTO classification system and give the group indices. Soil A B C D E No. 10 92 90 100 72 100 Sieve Analysis, % Finer No. 40 81 70 92 61 85 No. 200 52 34 78 33 71 Liquid Limit 29 37 61 35 55 Plasstic Limit 16 30 26 22 21