SITUATION 9 The result of sieve analysis of three soils is given next. It is required to classify these soils according to the AASHTO Classification System. Use the attached AASHTO Classification of Highway Subgrade Materials Table. (a) Classification of Soil A. (b) Classification of Soil B. (c) Classification of Soil C.

SITUATION 9 The result of sieve analysis of three soils is given next. It is required to classify these soils according to the AASHTO Classification System. Use the attached AASHTO Classification of Highway Subgrade Materials Table. (a) Classification of Soil A. (b) Classification of Soil B. (c) Classification of Soil C.

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 result of sieve analysis of three soils is given next. It is required to classify these soils according to the AASHTO Classification System. Use the attached AASHTO Classification of Highway Subgrade Materials Table. (a) Classification of Soil A. (b) Classification of Soil B. (c) Classification of Soil C. Sieve Analysis Results for Situation 9 Sieve Analysis Sieve Diameter, Percent Passing Number mm. 4.76 90 100 100 8. 2.38 84 90 100 10 2. 72 77 98 20 0.84 66 59 91 40 0.42 58 50 85 60 0.25 50 42 79 100 0.149 44 36 70 200 0.074 38 33 LL 42 46 47 PL 23 29 24 63
Percentage finer by weight 100% 80% 60% 40% 20% 0% 0.001 (c) Soil J (d) Soil L H 0.010 Ma 1.000 Soil Sample ID H I J #200 L 0.100 Particle size (mm) 46 37 #4 Liquid Limit Plastic Limit 60 26 Non plastic 34 18 10.000 AASHTO Classification: Classify the following soils using AASHTO criteria. (a) Soil H (b) Soil I 3° 100.00
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 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
10 11 percent. Classify the using the textural classification chart: a) Compute the percentage of clay. b). Compute the percentage of silt. c) Classify the type of soil. Problem: soil to be used as highway Classify the given subgrade material using the AASHTO method by using the attached table for its classification. Sieve analysis % finer No. 10 sieve = 47% %3D No.40 sieve = 28% No.200 sieve = 9% Plasticity for the minus No. 40 fraction Liquid limit 0 Plasticity index = 2%
Classify the following soils by USCS classification system. Percent finer than (sieve analysis) Liquid Limit Plasticity Limit Soil Cu Co No. 4 No. 200 1 71 4 Non Plastic 3.4 2.6 -- 2 70 30 33 12 Group Symbol Criteria for Assigning Group Symbols Gravels Clean Gravels C, 2 4 and 1 C¸>3° GW More than 50% Less than 5% fines“ GP of coarse fraction Gravels with Fines PI7 and plots on or above “A" line (Figure 3.20) GM Coarse-Grained Soils retained on No. 4 More than 12% fines“ GC More than 50% of sieve retained on No. 200 Sands Cu2 6 and 1 C>3° Clean Sands SW sieve 50% or more of Less than 5% fines" SP coarse fraction Sands with Fines PI7 and plots on or above “A" line (Figure 3.20) SM passes No. 4 sieve More than 12% fines»d SC PI >7 and plots on or above "A" line (Figure 3.20)° PI< 4 or plots below “A" line (Figure 3.20)° CL Inorganic Silts and Clays Liquid limit less than 50 ML Liquid limit-oven dried Liquid limit-not dried Fine-Grained Soils Organic < 0.75; see Figure 3.20; OL zone OL…
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…
1. Classify the following soil to be used as a highway subgrade material using AASHTO method. Sieve Analysis % Finer No. 10 sieve = 88% No. 40 sieve = 75% No. 200 sieve = 34 % Plasticity for fraction passing No.4 Liquid Limit = 39% Plasticity Index = 12% %3D
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
The result of sieve analysis of three soils is given next. It is required to classify these soils according to the AASHTO Classification System. Use the attached AASHTO Classification of Highway Subgrade Materials Table. Sieve Analysis Sieve Diameter, Percent Passing Number mm. A В C 4 4.76 2.38 90 100 100 8 84 90 100 10 2 72 77 98 20 0.84 66 59 91 40 0.42 58 50 85 60 0.25 50 42 79 100 0.149 44 36 70 200 0.074 38 33 63 LL 42 46 47 PL 23 29 24 What is the classification of Soil A? What is the classification of Soil B? What is the classification of Soil C? EDI
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.
By referring to USCS table 1 (below), what is the soil type if the results from sieve test show; i. Less than 5% of soil passing No.200 sieve, ii. Less that 50% of soil passing No. 4 sieve, and iii. Cu is 5 and Cc is 2. (Answer in symbol only i.e. SP, SW) Major division Typical name Classification criteria Group Eymbal GW Wel-graded gravels and gravel- sand mitures, inte or no fines U- DJD, greater than 4 C-0»(O x O between 1 and 3. GP Poorly-graded 9graveis and gravel-sand mixtures, inte or no fines. Not meeting both criteria for GW. Sity gravels. gravel-sand-sit motures GM Alterberg limits plot below A-ine or plasticity index less than 4. Clayey mitures GC Alterberg limits piot above Aine or plasticity index less than 4. Sw Wel-graded sands and gravelly sands, itte or no fines. U greater than 6 C, between 1 and 3 Not meeting both criteria for SW. Poorly-graded sands gravelly sands, tle or no fines. SP and SM Attorberg imits plot below A-ine or plasticity index less than 4. Sity…