A person who cannot blame himself does not blame anyone. Looking through the lens of infinity is more terrifying than anything. Where am I and where is all that pettiness! Amim: full-general Teri Teri flooded From bite to evening prayer Dangal: Vast Inference: investigation, interrogation Vomiting: Vomiting Kefal: Serin Qalchmaq: Strong Tallow: Fat Zanjmore: Crying and wailing Beginning of page 20 of wall 485 When one has lost the illusion of eternity, it doesn't matter how many hours or how many years you wait. Wall p. 25 It was strange to me that even though he was alive, he let his hair cover his face. Wall p. 32 Tipa tap with the tip of the toe

1. Plasticity and Structure of Soil
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Baghlan university, Engineering Faculty,

2. Outline
• The behavior of soil can be divided into four basic states
• Solid
• Semi
Solid
• Plasti
c
• Liquid
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Baghlan university, Engineering Faculty,

3. Outline
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Baghlan university, Engineering Faculty,

4. Liquid Limit (LL)
• Transition point from Plastic state to Liquid
state
• Casagrande Method
• Passing No. 40 (0.425mm) = 100 gr Is needed.
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Baghlan university, Engineering Faculty,

5. Liquid Limit (LL)
• Liquid Limit is determined by plotting the result of three
tests as per ASTM Designation D 4318.
• The moisture content required to close a distance of 12.7
mm after 25 blows.
• Flow Curve:
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Baghlan university, Engineering Faculty,

6. Liquid Limit (LL)
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Baghlan university, Engineering Faculty,

7. Liquid Limit (LL)
• Fall cone method
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Baghlan university, Engineering Faculty,

8. Plastic Limit (PL)
• Performed by repeated rolling of a soil mass on a ground glass plate
or Fall Cone method.
• The moisture content in percent, at which the soil crumbles, when
rolled into threads of 3.2 mm ( in.) in diameter.
• Passing No. 40 (0.425mm) 20 gr Is needed.
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Baghlan university, Engineering Faculty,

9. Plasticity Index (PI)
• The plasticity index (PI) is the difference between the liquid limit and
the plastic limit of a soil, or
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Baghlan university, Engineering Faculty,

10. Shrinkage Limit (SL)
• The moisture content, in percent, at which the volume of the soil
mass ceases to change is defined as the shrinkage limit.
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Baghlan university, Engineering Faculty,

11. Liquidity Index (LI)
• The relative consistency of a cohesive soil in the natural state
• W = in situ moisture contend
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Baghlan university, Engineering Faculty,

12. Consistency Index (CI)
• Consistency index (CI)
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Baghlan university, Engineering Faculty,

13. Activity
• Activity is used as an index for identifying the swelling potential of
clay soils.
• clay-size fraction (%finer than 2 μm by weight)
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Baghlan university, Engineering Faculty,

14. Plasticity Chart
• A-line separates the inorganic
clays from the inorganic silts.
Inorganic clay values lie above the
A-line, and values for inorganic
silts lie below the A-line. Organic
silts plot in the same region
(below the A-line and with LL
ranging from 30 to 50) as the
inorganic silts of medium
compressibility. Organic clays plot
in the same region as inorganic
silts of high compressibility (below
the A-line and LL greater than 50).
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Baghlan university, Engineering Faculty,

15. Question?
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Baghlan university, Engineering Faculty, Pavement Analysis and Design