The following soil as specified by the AASHTO System has the following results: Percent finer than No. 10 sieve . 90 . 76 . 34 Percent finer than No. 40 sieve Percent finer than No. 200 sieve Liquid limit = 37 Plasticity index = 12 Calculate the partial group index for the soil that belongs to groups A-2-6. 2.38 2.85 0.85 0.38

The following soil as specified by the AASHTO System has the following results: Percent finer than No. 10 sieve . 90 . 76 . 34 Percent finer than No. 40 sieve Percent finer than No. 200 sieve Liquid limit = 37 Plasticity index = 12 Calculate the partial group index for the soil that belongs to groups A-2-6. 2.38 2.85 0.85 0.38

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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Concept explainers

Soil classification and characteristics

Soil classification is a method of categorizing soil based on its properties, types, and uses. The motive of soil classification is to arrange various types of soils and divide them into groups for various engineering and agricultural purposes. Soil classification is carried out by various agencies as per their purposes. From an engineering perspective, soil classification is done to find out the suitability of soil for various construction purposes like the construction of dams, foundations, highways, infrastructures, and so on. For engineering purposes, the soil is classified by the following systems:

Question

The following soil as specified by the AASHTO System has the following results:
Percent finer than No. 10 sieve .
90
. 76
. 34
Percent finer than No. 40 sieve
Percent finer than No. 200 sieve
Liquid limit = 37
Plasticity index = 12
Calculate the partial group index for the soil that belongs to groups A-2-6.
2.38
2.85
0.85
0.38

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Mechanical analysis on four different samples designated as A, B. Cand D were carried out in a soil laboratory. The results of tests are given below. Hydrometer analysis was carried out on sample D. The soil is non-plastic. Sample D. liquid limit w 42, plastic limit = 24, plasticity index = 18 Classify the soils per the Unified Soil Classification System. Samples A ASTM Sieve Percentage finer than Designation 63.0 mm 100 93 20.0 mm 64 76 6.3 39 100 65 20 mm 600 212 63 A 20 24 98 59 12 90 54 5 9. 47 100 2 34 95 23 69 46 2 4 31 Samples A,BandC 10 60 20 Sand Coarse jo medium Coles (>76.2 mm) Clay Silt Gravel Fine 0.001 0.01 0.075 0.1 10 100 Particle size (mun) Figure Ex. 3.21 Percentage finer
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