solve it and show how you do it Problems5.1 Classify the following soils using the U.S. Department of Agriculture texturalclassification chart.Particle-size distribution (%)Particle-size distribution (%)SoilSandSiltClaySoilSandSiltClayA202060F305812B55540G402535C453520H302545D501535I4550E701515J454510

The USDA classification chart is shown below: The soils are classified by following the steps…

Answered: Problems 5.1 Classify the following…

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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Classify the following soils by the AASHTO classification system. Description Percent finer than No. 10 sieve Percent finer than No. 40 sieve Percent finer than No. 200 sieve Soil A Soil B Soil C 100 92 94 82 38 81 85 51 52 Liquid limit Plastic Limit 42 29 43 23 16 34 Table 3.1: Classification of Highway Subgrade Materials General class fication Granular materials (35% or less of total sample passing No. 200) A-2 A-1 Group classification Sieve analysis (percentage passing) No. 10 No. 40 No. 200 Characteristics of fraction passing No. 40 Liquid limit Plasticity index Usual types of significant constituent materials A-1-a A-1-b A-3 A-2-4 A-2-5 A-2-6 A-2-7 50 max. 30 max. 50 max. 51 min. 15 max. 25 max. 10 max. 35 max. 35 max. 35 max. 35 max. 40 max. 41 min. 40 max. 41 min. 10 max. 10 max. 11 min. 11 min. 6 max. NP Stone fragments, gravel, and sand Fine sand Sity or clayey gravel and sand General subgrade rating Excellent to good What is the classification of Soil A? O A-5(3) A-7-5(3) O…
• 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
Q3/ Classify the following soils into Unified System: Sieve No Diameter (mm) % Passing Soil A 3/8" 9.5 100 4 4.75 100 25 0.599 100 52 0.295 95 100 0.152 69 200 0.076 56 0.03 43 0.01 40 0.005 38 0.002 31 L.L 55 P.L 25 Knowing that D60=9.5, D10=0.599, D30=2.411
PROBLEM No. 2 Classify the following soils by the AASHTO classification system: Soil A Soil B Soil C Percent finer than #10 sieve 83 100 48 Percent finer than #40 sieve 48 90 28 Percent finer than #200 sieve 20 86 6 Liquid limit Plasticity Index 20 65 5 32 non plastic
Classify the following soils by the AASHTO classification system. Description Soil A Soil B Soil C Percent finer than No.10 sieve 83 100 48 Percent finer than No.40 sieve 48 92 28 Percent finer than No.200 sieve 20 86 6 Liquid Limit 20 70 - Plasticity Index 5 32 Nonplastic
Soil Classifications Classify the following soils by the AASHTO classification system. Description Soil A Soil B Soil C Percent finer than No. 10 sieve 83 100 48 48 92 28 Percent finer than No. 40 sieve 20 86 6 Percent finer than No. 200 sieve 20 70 Liquid limit Plasticity index 32 Nonplastic
Unified Soil Classification System Problem Set No. 6 1. Do hand drawing of the grain size distribution curves of each soil type and classify them using the USCS. All of the soils are inorganic soils. Show your complete solution. Percent passing U.S. sieve Soil No.4 No.10 No.20 No.40 No.60 No.100 No.200 LL PL В 94 63 21 10 7 3 NP C 100 49 40 38 26 18 10 NP" D 100 100 98 93 88 83 77 63 48 *NP=not possible, meaning low plasticity
2. The result of sieve analysis of three soils is given. It is required to classify these soils according to the AASHTO Classification System. Sieve No. 4 8 10 20 40 60 100 200 LL PL Diam. (mm) 4.760 2.380 2.000 0.840 0.420 0.250 0.149 0.074 SIEVE ANALYSIS Soil A 90 64 55 33 24 17 9 5 Percent Passing Soil B 100 90 77 59 50 42 36 33 46 29 Soil C 100 100 78 91 85 79 70 63 47 24 a. What is the classification of Soil A? b. What is the classification of Soil B? c. What is the classification of Soil C?
1. Classify the following soils by using the USDA's textural classification chart. Soil Particle-size Distribution (%) A B C D E Gravel 0 0 10 20 15 Sand 25 5 20 40 32 Silt 65 7 35 22 25 Clay 10 88 30 18 28
Classify the following soils by the Unified (USCS) and AASHTO methods. Where necessary, assume CU = 7 and Cc=2.5. Soil No. 2 62 % Passing Soil No. 1 # 4 95 41 #10 88 # 40 33 11 81 2676 #200 65 21 LL 53 12 PL 36 USCS AASHTO Usily
Classify the following soils by the AASHTO classification system. Give the group index for each soil. Sieve analysis- Percent finer Liquid limit Plasticity index Soil No. 10 No. 40 No. 200 A 98 80 72 52 21 90 74 58 38 12 84 71 64 41 14 D 100 78 82 32 12 E 80 68 48 30 11 © Cengage Learning 2014
Classify the following soils by using the USDA's textural classification chart Particle - size distribution (%) Clay 60 Soil Gravel Sand Silt A 8 32 B 24 30 30 16

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