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ne siev uysis of t. ng through the No. 40 classification system a

ne siev uysis of t. ng through the No. 40 classification system a

Structural Analysis
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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choose 3 from problem to classify

5.2 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. Sieve analysis (percent finer) Soil No. Liquid limit Plastic limit No. 10 No. 40 No. 200 1 98 80 50 38 29 2 100 92 80 56 23 3 100 88 65 37 22 4 85 55 45 28 20 92 75 62 43 28 6 48 28 6 NP 7 87 62 30 32 24 8 90 76 34 37 25 9 100 78 8. NP 10 92 74 32 44 35
Transcribed Image Text:5.2 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. Sieve analysis (percent finer) Soil No. Liquid limit Plastic limit No. 10 No. 40 No. 200 1 98 80 50 38 29 2 100 92 80 56 23 3 100 88 65 37 22 4 85 55 45 28 20 92 75 62 43 28 6 48 28 6 NP 7 87 62 30 32 24 8 90 76 34 37 25 9 100 78 8. NP 10 92 74 32 44 35
Table B Classification of Soils and Soil-Aggregate Mixtures Granular Materials (35 Percent or Less Passing 0.075 mm) Silt-Clay Materials (More than 35 Percent Passing 0.075 mm) General Classification A-1 A-2 A-7 A-7-5. Group Classification А-1-а A-1-b A-3 A-2-4 А-2-5 A-2-6 A-2-7 A-4 A-5 А-б А-7-6 Sieve analysis, percent passing: 2.00 mm (No. 10) 0.425 mm (No. 40) 0.075 mm (No. 200) 50 max 30 max 50 max 51 min 15 max 25 max 10 max 35 max 35 max 35 max 35 max 36 min 36 min 36 min 36 min Characteristics of fraction passing 0.425 mm (No. 40) Liquid limit Plasticity index 40 max 10 max 41 min 40 max 41 min 40 max 41 min 40 max 41 min 6 max N.P. 10 max 11 min Il min 10 max 10 max 1l min 11 min Stone fragments, gravel and sand Fine Usual types of significant constituent materials sand Silty or clayey gravel and sand Silty soils Clayey soils General ratings as subgrade Excellent to good Fair to poor | |
Transcribed Image Text:Table B Classification of Soils and Soil-Aggregate Mixtures Granular Materials (35 Percent or Less Passing 0.075 mm) Silt-Clay Materials (More than 35 Percent Passing 0.075 mm) General Classification A-1 A-2 A-7 A-7-5. Group Classification А-1-а A-1-b A-3 A-2-4 А-2-5 A-2-6 A-2-7 A-4 A-5 А-б А-7-6 Sieve analysis, percent passing: 2.00 mm (No. 10) 0.425 mm (No. 40) 0.075 mm (No. 200) 50 max 30 max 50 max 51 min 15 max 25 max 10 max 35 max 35 max 35 max 35 max 36 min 36 min 36 min 36 min Characteristics of fraction passing 0.425 mm (No. 40) Liquid limit Plasticity index 40 max 10 max 41 min 40 max 41 min 40 max 41 min 40 max 41 min 6 max N.P. 10 max 11 min Il min 10 max 10 max 1l min 11 min Stone fragments, gravel and sand Fine Usual types of significant constituent materials sand Silty or clayey gravel and sand Silty soils Clayey soils General ratings as subgrade Excellent to good Fair to poor | |
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