47.) The results of the sieve analysis done on a soil are shown below.Sieve No.DiameterSoil A44.7608962.38070102.00063200.84055400.42031600.250201000.149182000.0744LL60PL40 Determine its classification using USCS. GW SP None of the above SW GP Soil ClassificationCriteria for Assigning Group Symbols and Group Names using Laboratory TestsGroup SymbolGroup NameBCu 24andGWWell-graded gravelCLEAN GRAVELS1 < Cc < 3GRAVELS(Less than 5%Cu < 4(More than 50%fines)and/orGP|Poorly graded gravelof coarseСс < 1 or Cс> 3fraction retainedGRAVELS WITHFines classify as ML oron No. 4 sieve)GMSilty gravelFINESМНCOARSE-(More than 12%Fines classify as CL orGRAINED SOILSGCClayey gravelfines)CHMore than 50%Cu 26retained on No. 200andSWWell-graded sandsieveCLEAN SANDS1< Сс < 3SANDS(Less than 5%Cu < 6(50% or more offines)and/orSPPoorly graded sandcoarse fractionСс < 1 or Cс > 3passes No. 4sieve)SANDS WITHFines classify as ML orSMSilty sandFINESMH(More than 12%Fines classify as CL orSCClayey sandfines)CH PI > 7 and Atterberglimits plots on or aboveCLLean clay“A" lineSILTS ANDINORGANICPI < 4 or AtterbergCLAYSlimits plots below "A"MLSiltLiquid limitless than 50FINE-GRAINEDlineLL (oven dried) ÷LL (not dried)SOILSOrganic clayOrganic Silt50% or moreORGANICOLpasses the No. 200< 0.75sievePI plots on or aboveCHFat claySILTS ANDINORGANIC"A" lineCLAYSPI plots below “A" lineMHElastic siltLiquid limit 50LL (oven dried) ÷LL (not dried)Organic clayOrganic siltor moreORGANICОН< 0.75HIGHLYPrimary organic matter, dark in color, and organic colorPTРeatORGANIC SOILS

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Answered: 47.) | bartleby

Engineering

Civil Engineering

47.)

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

47.) The results of the sieve analysis done on a soil are shown below.

Sieve No.	Diameter	Soil A
4	4.760	89
6	2.380	70
10	2.000	63
20	0.840	55
40	0.420	31
60	0.250	20
100	0.149	18
200	0.074	4
LL	60
PL	40

Determine its classification using USCS.

	GW
		SP
		None of the above
		SW
		GP

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

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