Q5) A: Laboratory test results on the soil (L.L=35% and P.L-21%) is given in thefollowing Table below. Classify the soil by using the unified classification system(10 mark)(showing all steps).Sieve Size(mm)Weight retained (gm)4.7520.4250.250.075Pan135706030142.5462.5B: A fine-grained soil has a liquid limit of 200% and a plastic limit of 45%, Thenatural water content of the soil in the field is 60% and the clay content is 63%,Calculate the plasticity index, the liquidity index and the activity.(10 mark)

(A) Unified soil classification system:given by casagrandefrom laboratory test resultliquid limit…

Q5) A: Laboratory test results on the soil (L,L=35% and P.L=21%) is given in the following Table below. Classify the soil by using the unified classification system (19 mark) (showing all steps). Sieve Size(mm) Weight retained (gm) 4.75 2 0.425 0.25 0.075 142.5 Pan 462.5 135 70 60 30 B: A fine-grained soil has a liquid limit of 200% and a plastic limit of 45%, The natural water content of the soil in the field is 60% and the clay content is 63%, Calculate the plasticity index, the liquidity index and the activity, (10 mark)

Q5) A: Laboratory test results on the soil (L,L=35% and P.L=21%) is given in the following Table below. Classify the soil by using the unified classification system (19 mark) (showing all steps). Sieve Size(mm) Weight retained (gm) 4.75 2 0.425 0.25 0.075 142.5 Pan 462.5 135 70 60 30 B: A fine-grained soil has a liquid limit of 200% and a plastic limit of 45%, The natural water content of the soil in the field is 60% and the clay content is 63%, Calculate the plasticity index, the liquidity index and the activity, (10 mark)

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 engineering for highway design

Soil engineering is a part of geotechnical engineering that deals with the characteristics of soil. It also helps to understand the behavior of the soil in different conditions. The basic concepts of soil are studied to check the strength, compressibility, and porosity of the soil. This makes soil engineering an important topic for civil engineering.

Question

Q5) A: Laboratory test results on the soil (L.L=35% and P.L-21%) is given in the
following Table below. Classify the soil by using the unified classification system
(10 mark)
(showing all steps).
Sieve Size(mm)
Weight retained (gm)
4.75
2
0.425
0.25
0.075
Pan
135
70
60
30
142.5
462.5
B: A fine-grained soil has a liquid limit of 200% and a plastic limit of 45%, The
natural water content of the soil in the field is 60% and the clay content is 63%,
Calculate the plasticity index, the liquidity index and the activity.
(10 mark)

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Question 44 The given data shows a sieve analysis of a soil sample. Classify the soil using AASHTO Method. Tables are provided below. Sieve No. Diameter (mm) Percent Passing No. 4 No. 8 No. 10 No. 20 4.760 96 2.380 80 2.000 78 0.840 61 No. 40 0.420 56 No. 60 0.250 48 No. 100 0.150 39 No. 200 0.075 33 Characteristics of No. 40 Fraction LL 45 PL 36 General classification Granular materials (35% or less of total sample passing No. 200) A-I A-2 Group classification A-l-a A-1-5 A3 A-24 A-25 A-2-6 A-2-7 Sieve analysis (percent passing) No. 10 No. 40 No. 200 50 max. 30 max. 15 max. 50 max. 25 max. 51 min. 10 max. 35 max. 35 max. 35 max. 35 max. Characteristics of fraction passing No. 40 Liquid limit Plasticity index 40 max. 41 min. 40 max. 41 min. 6 max. NP 10 max. 10 max. 11 min. 11 min. Usual types of significant Stone fragments, gravel, and sand Fine Silty or clayey gravel and sand sand
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The following table shows the sieve analysis data on the left and hydrometer test data on the right for the minus No. 200 sieve material for a given soil. (a) Compute Cu and Cc. (b) Report the percentage gravel, sand, silt, and clay according to AASHTO. (c) Classify the soil according to AASHTO.
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Mechanical analysis on four different samples designated as A, B. Cand Dwere 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 D. liquid limit w 42, plastic limit = 24. plasticity index = 18 Classify the soils per the Unified Soil Classification System. Samples 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 9. 47 100 34 95 23 69 7. 46 2 31 100 60 20 Sand Coles >762 mm Clay Silt Gravel Fine Course lo medium 0.001 001 0.075 0.1 10 100 Particle size (mm) Samples A,BandC Figure Ex. 3.21 Percentage finer