Building Materials, Third Edition

192 BuildingMaterials

Minimumsizepresentin

substantialproportions(mm)

Minimumweightofsampletobe

taken forsieving(kg)

63

50

40 or 31.5

25

20 or 16

12.5

10

6.3

4.75

2.36

50
35
15
5
2
1
0.5
0.2
0.2
0.1
Theairdriedsampleisplacedon asetofspecificsieveswithlargestsizeonthetop.The
set ofsieveisshakedfor 2minutes.Arrangementofsievefordifferenttypesofaggregateis
as follows.

Fineaggregates Coarseaggngate All-in-aggregate

10 mm

4.75mm

2.36mm

1.18mm

600 micron

300 micron

150 micron

75 micron

40mm

20mm

16mm

lOmm

4.75mm

2.36mm

80mm

63mm

40mm

20mm

16mm

lOmm

4.75mm

2.36mm

1.18mm

600 micron

300 micron

ISOmicron

75 micron

Acruveisplottedwithsievesizeson abscissaon agraph (Fig. 6.3)andpercentageof

aggregatepassingasordinate.Fromthisgraphrelativeamountofvarioussizesofaggregate

can bereadilycompared.

,

100

C!i~ 80

'"CF.';;: 60

LlJC!i

«t-- 40

Z

t5a: 20

LlJCL 0

/5 1~02123h04256.J08501'lSlI02'36335}7g^3 1V2511e20js 40~063s'0

I..APERTURE SIZEINMICRONS..I I.. APERTURE SIZE INMllLiMETRES ..

SIEVE SIZES

Note:The vertical scale ofiruschartisanarunrnetrcscale and thehorizontalscaleISlogarithmic

Fig.6.3ChartforRecordingSieveAnalysisResult