ML     None of the above.     CL     CH     MH

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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43.) The results of the sieve analysis done on a soil are shown below.

Sieve No. Diameter Soil A
4 4.760 100
6 2.380 98
10 2.000 91
20 0.840 85
40 0.420 84
60 0.250 79
100 0.149 61
200 0.074 55
LL 60
PL 40
   

ML

   

None of the above.

   

CL

   

CH

   

MH

Soil Classification
Criteria for Assigning Group Symbols and Group Names using Laboratory Tests
Group Symbol
Group NameB
Cu 24
and
GW
Well-graded gravel
CLEAN GRAVELS
1 < Cc < 3
GRAVELS
(Less than 5%
Cu < 4
(More than 50%
fines)
and/or
GP
|Poorly graded gravel
of coarse
Сс < 1 or Cс> 3
fraction retained
GRAVELS WITH
Fines classify as ML or
on No. 4 sieve)
GM
Silty gravel
FINES
МН
COARSE-
(More than 12%
Fines classify as CL or
GRAINED SOILS
GC
Clayey gravel
fines)
CH
More than 50%
Cu 26
retained on No. 200
and
SW
Well-graded sand
sieve
CLEAN SANDS
1< Сс < 3
SANDS
(Less than 5%
Cu < 6
(50% or more of
fines)
and/or
SP
Poorly graded sand
coarse fraction
Сс < 1 or Cс > 3
passes No. 4
sieve)
SANDS WITH
Fines classify as ML or
SM
Silty sand
FINES
MH
(More than 12%
Fines classify as CL or
SC
Clayey sand
fines)
CH
Transcribed Image Text:Soil Classification Criteria for Assigning Group Symbols and Group Names using Laboratory Tests Group Symbol Group NameB Cu 24 and GW Well-graded gravel CLEAN GRAVELS 1 < Cc < 3 GRAVELS (Less than 5% Cu < 4 (More than 50% fines) and/or GP |Poorly graded gravel of coarse Сс < 1 or Cс> 3 fraction retained GRAVELS WITH Fines classify as ML or on No. 4 sieve) GM Silty gravel FINES МН COARSE- (More than 12% Fines classify as CL or GRAINED SOILS GC Clayey gravel fines) CH More than 50% Cu 26 retained on No. 200 and SW Well-graded sand sieve CLEAN SANDS 1< Сс < 3 SANDS (Less than 5% Cu < 6 (50% or more of fines) and/or SP Poorly graded sand coarse fraction Сс < 1 or Cс > 3 passes No. 4 sieve) SANDS WITH Fines classify as ML or SM Silty sand FINES MH (More than 12% Fines classify as CL or SC Clayey sand fines) CH
PI > 7 and Atterberg
limits plots on or above
CL
Lean clay
“A" line
SILTS AND
INORGANIC
PI < 4 or Atterberg
CLAYS
limits plots below "A"
ML
Silt
Liquid limit
less than 50
FINE-GRAINED
line
LL (oven dried) ÷
LL (not dried)
SOILS
Organic clay
Organic Silt
50% or more
ORGANIC
OL
passes the No. 200
< 0.75
sieve
PI plots on or above
CH
Fat clay
SILTS AND
INORGANIC
"A" line
CLAYS
PI plots below “A" line
MH
Elastic silt
Liquid limit 50
LL (oven dried) ÷
LL (not dried)
Organic clay
Organic silt
or more
ORGANIC
ОН
< 0.75
HIGHLY
Primary organic matter, dark in color, and organic color
PT
Рeat
ORGANIC SOILS
Transcribed Image Text:PI > 7 and Atterberg limits plots on or above CL Lean clay “A" line SILTS AND INORGANIC PI < 4 or Atterberg CLAYS limits plots below "A" ML Silt Liquid limit less than 50 FINE-GRAINED line LL (oven dried) ÷ LL (not dried) SOILS Organic clay Organic Silt 50% or more ORGANIC OL passes the No. 200 < 0.75 sieve PI plots on or above CH Fat clay SILTS AND INORGANIC "A" line CLAYS PI plots below “A" line MH Elastic silt Liquid limit 50 LL (oven dried) ÷ LL (not dried) Organic clay Organic silt or more ORGANIC ОН < 0.75 HIGHLY Primary organic matter, dark in color, and organic color PT Рeat ORGANIC SOILS
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