Please answer the question in the picture and show all of your work. Problem 2:For a soil, the following grain-size analysis is given:U.S. SieveNo.Percentpassing41001209020644038801813200For this soil, LL = 20 and PL = 15. Classify the soil by using:a. AASHTO soil classification system. Give the group index.b. USCS system. Given group symbol and group name.

Answered: Problem 2: For a soil, 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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The grain size curves for soils A, B and C is shown. It is required to classify the soils according to the Unified Soils Classification System. Use the attached Table. SIEVE ANALYSIS Sieve No. Diam. (mm) Percent Passing Soil A Soil B Soil C 3.5 5.66 75 100 90 4 4.760 48 100 75 10 2.000 38 92 60 20 0.840 32 88 50 40 0.420 28 75 30 60 0.250 22 68 25 100 0.149 18 65 16 200 0.074 15 60 10 45 LL 20 PL
5.6 For an inorganic soil, the following grain-size analysis is given. U.S. sieve no. Percent passing 4 100 10 90 20 64 40 38 80 18 200 13 For this soil, LL = 23 and PL = 19. Classify the soil by using a. AASHTO soil classification system. Give the group index. b. Unified soil classification system. Give group symbol and group name.
Classify the following soils using the Unified soil classification system. Give group symbols and group names. Sieve analysis (percent finer) Soil Liquid Plasticity limit No. No. 4 No. 200 limit Comments 1 94 3 NP C, = 4.48 and C. = 1.22 2 100 77 63 25 3 100 86 55 28 4 100 45 36 22 5 92 48 30 6 60 40 26 4 7 99 76 60 32
4. 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 Soll A 85 80 68 62 52 48 38 25 42 33 Percent Passing Soil B 98 90 85 78 62 55 50 45 45 37 Soil C 100 95 88 75 60 52 40 34 38 18
Q5: Classify the soil with the data in table below using USCS to find the followings 1- group symbol and group name 2- If the natural water content of the soil was 32.6 determine the liquidity index Sieve No. Sieve size mm 3 4 6.35 4.75 % finer 60 P.L-29 and L.L-38 52 8 2.36 43 16 1.18 30 40 0.425 22 100 0.15 17 200 0.074 12 hydrometer 0.06 10 hydrometer 0.002 3
Question 3: For an inorganic soil the following grain - size analysis is given. U.S sieve Percent analysis 4 passing 100 10 90 20 64 40 38 80 18 200 13 For this soil, LL=23 and Pl=19, classify the soil by using a. AASHTO b. USCS c. Give group name and group symbols
3.11 Classify the following soils by using the Unified soil classification system. Give the group symbols and the group names. Sleve analysls- Percent finer Liquld Ilmit Plasticity Index Soll No. 4 No. 200 C, C. 1 70 30 33 21 48 20 41 22 95 70 52 28 4 100 82 30 19 100 74 35 21 6. 87 26 18 38 69 88 78 38 8. 99 57 54 26 9. 71 11 32 16 4.8 2.9 10 100 2 NP 7.2 2.2 11 89 65 44 21 12 90 39 31 3.9 2.1 Ans.: 1. SC (clayey sand with gravel), 2. GC (Clayey Gravel with sand), 3. CH (sandy fat clay), 4. CL (Lean clay with sand), 5. CL (Lean clay with sand), 6. SC (CIlayey sand), 7. CH (sandy fat clay), 8. CH (sandy fat clay), 9. SP-SC (Poorly Graded sand with gravel and sand), 10. sW (Well-graded sand), 11.CL (Sandy lean clay), 12. SP-SC (Poorly Graded sand with gravel and sand) 3.12 For an inorganic soil, the following grain-size analysis is given. U.S. Percent Sleve No. passing . 4 100 10 90 20 64 40 38 80 18 200 13 For this soil, LL = 23 and PL = 19. Classify the soil by using (a) AASHTO soil…
2. Classify the following soils by the AASHTO classification system. Give the group index for each soil. Show the step-by-step process of classifying each soil using the AASHTO table. Soil A B с D E Sieve analysis- Percent finer No. 40 No. 10 90 86 42 92 90 74 56 28 68 48 No. 200 32 8 12 30 22 Liquid limit 28 NP 18 42 31 Plasticity index 9 13 18 5
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?
3. Classify the following soils using the Unified Soil Classification System. Give group symbols and group names. Sieve Analysis (percent finer) Liquid Plastic Soil No. Comments Limit Limit No. 4 No. 200 1 94 3 NP 100 77 63 25 3 100 86 55 28 Cu = 4.48 4 100 45 36 22 And Cc= 1.22 5 92 48 30 60 40 26 4 7 99 76 60 32
Classify each soil according to ASSHTO classification system. Description Percent finer than No.10 Sieve SOIL A SOIL B SOIL C 83 100 48 Percent finer than No.40 Sieve 48 92 28 Percent finer than No.200 Sieve 20 86 6. Liquid Limit Plasticity Index N/A Non plastic 20 70 5 32
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

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