PLASTICITY INDEX (PI) What soil type corresponds to the information shown below if the PL is 15. Liquid Limit Moisture content (%) 60% 50% 40% 30% 20% 10% 0% 1 60 50 . 10 100 blow count For classification of fine-grained soils and fine-grained fraction of coarse-grained soils. Equation of "A"-line Horizontal at PI = 4 to LL = 25.5, then PI 0.73 (LL-20) 40 Equation of "U"-line Vertical at LL 16 to PI = 7, then PI = = 0.9 (LL - 8) 30 20 10 7 4 0 0 10 19 CL-ML CL OR OL ML OR OL "U" LINE CH OR OH "A" LINE MH OR OH 16 20 30 40 50 60 70 80 90 100 110 LIQUID LIMIT (LL)
PLASTICITY INDEX (PI) What soil type corresponds to the information shown below if the PL is 15. Liquid Limit Moisture content (%) 60% 50% 40% 30% 20% 10% 0% 1 60 50 . 10 100 blow count For classification of fine-grained soils and fine-grained fraction of coarse-grained soils. Equation of "A"-line Horizontal at PI = 4 to LL = 25.5, then PI 0.73 (LL-20) 40 Equation of "U"-line Vertical at LL 16 to PI = 7, then PI = = 0.9 (LL - 8) 30 20 10 7 4 0 0 10 19 CL-ML CL OR OL ML OR OL "U" LINE CH OR OH "A" LINE MH OR OH 16 20 30 40 50 60 70 80 90 100 110 LIQUID LIMIT (LL)
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
Answer Choices: A) Cl B) ML C) CH D) MH

Transcribed Image Text:What soil type corresponds to the information shown below if the PL is 15.
Liquid Limit
Moisture content (%)
PLASTICITY INDEX (PI)
60%
50%
40%
30%
20%
10%
0%
1
60
50
.
10
100
blow count
For classification of fine-grained soils
and fine-grained fraction of coarse-grained
soils.
Equation of "A"-line
Horizontal at PI = 4 to LL = 25.5,
then PI 0.73 (LL-20)
40
Equation of "U"-line
Vertical at LL = 16 to PI = 7,
then PI 0.9 (LL - 8)
30
20
20
10
9740
/CL-ML
U" LINE
CL OR OL
CH OR OH
"A" LINE
ML OR OL
1
0
10
16 20
30
40
50
60
MH OR OH
LIQUID LIMIT (LL)
70
80
80
90
100
110
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