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Part 9: Assessment of fines Methylene blue test; Pari 10: Assessment of fines Grading of filler aggregates (air jet sieving); Part 11: Classification test for the constituents of coarse recycled aggregate.A c c o r d i n g t o t h e C E N / C E N E L E C Internal R e g u l a t i o n s , t h e n a t i o n a l s t a n d a r d s o r g a n i z a t i o n s o f t h ef o l lo w i n g c o u n t r i e s a r e b o u n d t o im p l e m e n t t h i s E u r o p e a n S t a n d a r d : A u s t r i a , B e l g i u m , B u l g a r i a ,C r o a t i a , C y p r u s , C z e c h R e p u b l i c , D e n m a r k , E s t o n i a , F i n l a n d , F r a n c e , G e r m a n y , G r e e c e , H u n g a r y ,I c e l a n d , I r e l a n d , Italy, L a t v i a , L i t h u a n i a , L u x e m b o u r g , M a l t a , N e t h e r l a n d s , N o r w a y , P o l a n d , P o r t u g a l ,R o m a n i a , S l o v a k i a , S l o v e n i a , S p a i n , S w e d e n , S w i t z e r l a n d , T u r k e y a n d t h e U n i t e d K i n g d o m .

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1 ScopeT h i s Eur ope an Standa rd descri bes the reference method, used for type testing and in c a s e of dispute,for determination of the flakiness index of aggreg ates . For other purp oses , in particular productionc o n t r o l , other methods may be u s e d , provided that an appropriate working relationship with ther e f e r e n c e meth od has been estab lish ed.T h i s Eur ope an Stan dard applies to natural, manufactu red or recycled aggr egat es.T h etest procedure specified in this part of this European Standard is not applicable to particle s i z e s l e ssthan 4 mm or greater than 100 mm.

2 Normative references

M

T h e following documents, in whole or in part, are normatively referenced in this document and arei n d i s p e n s a b l e for its appli cati on. For date d refe ren ces , only the edition cited app lie s. For unda tedr e f e r e n c e s , the latest edition of the referenced document ( including any amendments) applies.gS E N 932-2,Tests for general properties of aggregates Part 2: Methods for reducing laboratory sampleso E N 932-5 , Tests for general properties of aggregates Part 5: Common equipment and calibrationtoJ E N 933-1 , Tests for geometrical properties of aggregates Part ^Determination of particle size< distribution Sieving methodc E N 933-2, Tests for geometrical properties of aggregates Part 2: Determination of particle sizeo distribution Test sieves nominal size of apertures

I

a

3 TermsanddefinitionsF o r the pur pos es of this doc ume nt, the following ter ms and definitions a pply.3.1constant massm a s s determined by s u c c e s s i v e wei ghi ngs per form ed at least 1 h apart an d not differing by mor ethan 0,1N o t e 1 to entry: In many c a s e s ,constant mass can be achieved after a test portion has been dried for a predetermined period in a specified oven (see 5.4) at (110 5) C. Test laboratories can determine the time requiredto achieve constant mass for specific types and s i z e sof sample dependent upon the drying capacity of the ovenu s e d .3.2laboratory sampl es a m p l e intended for laboratory testing3.3particle s ize fraction(d,/Di)fraction of an aggrega te pa ssi ng the larger (D,) of two s iev es and retained on the s mall er (di)N o t e 1 to entry: The lowerlimitfor di may be zero.3.4test portions a m p l e used as a whole in a single test

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4 PrincipleT h e t e s t c o n s i s t s o f t w o s i e v i n g o p e r a t i o n s . F i r s t, u s i n g t e st s i e v e s , t h e s a m p l e i s s e p a r a t e d intov a r i o u s p a r t i c l e s i z e f r a c t i o n s dJD a s g i v e n i n T a b l e 1 . E a c h o f t he pa r t i c l e s i z e f r a c t i o n s dJ D x i s t hens i e v e d u s i n g b a r s i e v e s w h i c h h a v e p a r a l l e l s l o t s o fwidth D , / 2 .T h e o v e r a l l f l a k i n e s s i n d e x i s c a l c u l a t e d a s t h e total m a s s of p a r ti c l e s p a s s i n g t h e b a r s i e v e se x p r e s s e d a s a p e r c e n t a g e o f t h e total d r y m a s s o f p a r t i c l e s t e s t e d .I f r e q u i r e d , t h e f l a k i n e s s i n d e x o f e a c h p a r t i c l e s i z e f r a c t i o n dJ D K i s c a l c u l a t e d a s t h e m a s s o f p a r t i c l e sp a s s i n g t h e c o r r e s p o n d i n g b a r s i e v e , e x p r e s s e d a s a p e r c e n t a g e b y m a s s o f that pa r t i c l e s i z e f r a c t i o n .

CN

I

.315

5 ApparatusA l l a p p a r a t u s s h a l l c o n f o r m t o t h e g e n e r a l r e q u i r e m e n t s o f E N 9 3 2 - 5 .5.1 Test sieves, with s q u a r e a p e r t u r e s , c o n f o r m i n g t o E N 9 3 3 - 2 with t h e f o l lo w i n g a p e r t u r e s i z e s :1 0 0 m m ; 8 0 m m ; 6 3 m m ; 5 0 m m ; 4 0 m m ; 3 1 , 5 m m ; 2 5 m m ; 2 0 m m ; 1 6 m m ; 1 2 , 5 m m ; 1 0 m m ; 8 m m ,6 , 3 m m ; 5 m m a n d 4 m m .5.2 Correspon ding bar sieves, c o m p r i s i n g p a r a l le l c y l i n d r ic a l b a r s c o n f o r m i n g to t h e r e q u i r e m e n t si n T a b l e 1 . T h e t o l e r a n c e s o n t h e width o f s l o t s h a l l a p p l y t o t h e e n t i r e l e n g t h o f e a c h s l o t . A n e x a m p l eo f a b a r s i e v e i s s h o w n i n F i g u r e 1 .

Table 1 B a r s i e v e sParticle s i z e fraction oVD,

m mWidth o f slot i n b a r sieve

m m8 0 / 1 0 0 50 0 ,56 3 / 8 0 4 0 0 , 55 0 / 6 3 3 1 , 5 0 , 54 0 / 5 0 2 5 0,43 1 , 5 / 4 0 20 0.42 5 / 3 1 ,5 1 6 0 , 42 0 / 2 5 1 2 , 5 0 , 41 6 / 2 0 1 0 0 , 21 2 , 5 / 1 6 8 0 , 21 0 / 1 2 , 5 6 , 3 0 . 2

8 / 1 0 5 0 , 26 , 3 / 8 4 0 , 1 55 / 6 , 3 3 , 1 5 1 0 , 1 54 / 5 2 , 5 0 , 1 5

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\ \ \ \ s ^ r l \ \ \ \ \ \ \ \ ^

A A

rA

J

7A 2

rA

J

7A 2

rA

J

L

K e y1 meta l f rame (outs ide wo ode n f rame opt ional )2 w idth o f s lo t as spec i f ied in Tab le 13 cy l indr ica l s tee l bars (usual d iame ter range f rom 5 to 15 mm dep end ing on w idth o f s lo t )L = 250 mm to 300 mmH- 7 5 m mh = 55 mm t o 6 5 mmN O T E L be ing cons tant for a l l range of bar s i e ve s , the w idth o f the las t s lo t cannot be equal to the nominalva lue. In all c a s e s , i t should be smal ler than the nominal va lue.

Figure 1 Example o f a b a r s i e v e

5.3 Balance or scale, ac c u ra t e t o 0 ,1 % o f t he m a s s o f t he t es t po r t i on .5 . 4 Venti lated oven, t h e r m o s t a t i c a l l y c o n t r o l l e d to m a i n t a i n a t e m p e r a t u r e o f ( 1 1 0 5 ) C o r o t h e rs u i t a b l e e q u i p m e n t f o r d r y i n g t h e a g g r e g a t e s , w i th o u t c a u s i n g a n y p a r t ic l e s i z e b r e a k d o w n .

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CM

D D

r6 Preparation o f testportionsT h e l a b o r a t o r y s a m p l e s h a l l b e r e d u c e d i n a c c o r d a n c ewith E N 9 3 2 - 2 .T h e m a s s o f t h e t e s t p o r t i o n s h a l l b e a s s p e c i f i e d in E N 9 3 3 - 1 .D r y t h e t e s t p o r t io n a t ( 1 1 0 t 5 ) C t o c o n s t a n t m a s s . A l l o w to c o o l , w e i g h a n d r e c o r d th e m a s s a s M 0.

7 Procedure7.1 Sievin g on tests ievesU s i n g t h e a p p r o p r i a t e r a n g e o f s i e v e s f r o m t h o s e s p e c i f i e d i n 5 . 1 , s i e v e t h e te s t p o r t i o n a s s p e c i f i e d i nE N 9 3 3 - 1 .W e i g h a n d d i s c a r d a ll p a r t i c le s p a s s i n g t h e 4 m m s i e v e a n d r e t a i n e d o n t h e 1 0 0 m m s i e v e .W e i g h a n d r e t a i n s e p a r a t e l y a l l t h e p a r t i c l e s i n e a c h p a r t i c l e s i z e f rac t i on dJO,.7.2 Sieving on bar sievesS i e v e e a c h p a r t i c l e s i z e f r a c t i o n d-JD-, o b t a i n e d f r o m 7 .1 o n t h e c o r r e s p o n d i n g b a r s i e v e g i v e n i n< T a b l e 1 . T h i s s i e v i n g o p e r a t i o n c a n b e c a r r i e d o u t m a n u a l l y o r m e c h a n i c a l l y a n d s h a l l e n s u r e^ c o m p l e t e s e p a r a t i o n .

% W e i g h t h e m a t e r i a l f r o m e a c h p a r ti c le s i z e f r a c ti o n p a s s i n g th r o u g h t h e c o r r e s p o n d i n g b a r s i e v e .I 8 Ca lcu la t ion and expres s ion o fresultsro:g T h e r e s u l t s s h a l l b e r e c o r d e d o n t e s t d a t a s h e e t s ( s e e e x a m p l e in A n n e x A ) . C a l c u l a t e t h e s u m o f t h ej m a s s e s o f t h e p a r t i c l e s i z e f r a c t i o n s dJ D t a n d r e c o r d a s Myrovj C a l c u l a t e t h e s u m o f t h e m a s s e s o f t h e p a r t i c l e s i n e a c h o f t h e p a r t ic l e s i z e f r a c t i o n s dJ D { w h i c h p a s st h r o u g h a c o r r e s p o n d i n g b a r s i e v e o f s l o t w i d t h D , / 2 a n d r e c o r d a s M 2.

T h e o v e r a l l f l a k i n e s s i n d e x Fl i s c a l c u l a t e d f r o m t h e f o l l o w i n g e q u a t i o n :F / = M2IM^)x 1 0 0 ( 1 )

w h e r eM i i s t h e s u m o f t h e m a s s e s o f t h e p a r t i c l e s i n e a c h o f t h e p a r t i c l e s i z e f r a c t i o n d-JD-,, i n g r a m s ;M 2 i s t h e s u m o f t h e m a s s e s o f t h e p a r t i c l e s i n e a c h p a r t i c l e s i z e f r a c t i o n p a s s i n g t h ec o r r e s p o n d i n g b a r s i e v e o f s l o t w i d t h D,I2 i n g r a m s .T h e o v e r a l l f l a k i n e s s (Fl) s h a l l b e r e c o r d e d t o t h e n e a r e s t w h o l e n u m b e r .

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T h e f l a k i n e s s i n d e x f o r e a c h p a r t i c l e s i z e f r a c t i o n Fl, s h a l l b e c a l c u l a t e d , if r e q u i r e d , f ro m t h e f o l l o w i n ge q u a t i o n :FI, = {mJR,)x 10 0 (2)

w h e r eR, i s t h e m a s s o f e a c h p a r t i c l e s i z e f r a c t i o n dJ D y, i n g r a m s ;m , i s t h e m a s s o f t h e m a t e r i a l i n e a c h p a r t i c l e s i z e f r a c t i o n d / D , w h i c h p a s s e s t h r o u g h t h ec o r r e s p o n d i n g b a r s i e v e o f s l o twidth DJ2, i n g r a m s .I f t h e s u m o f t h e m a s s e s R, t o g e t h e r with t he m a s s e s o f a n y d i s c a r d e d p a r t i c l e s a n d a n y s i z e f r a c t i o n sthat a r e n o t t e s t e d ( s e e 7 . 1 ) d i f f e r s b y m o r e t h a n 1 % f r o m t h e m a s s M 0 ( s e e C l a u s e 6 ) , t h e t e s t s h a l lb e r e p e a t e d , u s i n g a n o t h e r t e s t p o r t i o n .

9 Testreport9.1 Mandatorydata

T h e t e s t r e p o r t s h a l l i n c l u d e t h e f o l l o w i n g i n f o r m a t i o n :tn a ) r e f e r e n c e t o t h is E u r o p e a n S t a n d a r d ;1

M

b ) i d e n t i f ic a t i o n o f t h e s a m p l e ;cj c ) i den t i f i ca t i o n o f the l abo ra to ry ;

Kc d ) m a s s o f t e s t p o r t i o n ;5e ) o v e r a l l f l a k i n e s s i n d e x Fl t o t h e n e a r e s t w h o l e n u m b e r ;

. f ) s a m p l e r e c e p t i o n d a t e ,c2I 9.2 Optionaldata-J5 T h e t e s t r e p o r t m a y i n c l u d e t h e f o l l o w i n g i n f o r m a t i o n :^ a ) n a m e a n d l o c a t i o n o f t h e s a m p l e s o u r c e ;

b ) d e s c r i p t i o n o f t h e m a t e r i a l a n d o f t h e s a m p l i n g p r o c e d u r e ;c ) f l a k i n e s s i n d e x Fl , o f e a c h p a r t i c l e s i z e f r a c t i o n t o t h e n e a r e s t w h o l e n u m b e r ;d ) s a m p l i n g c e r t i f i c a t e ;e ) da te o f tes t .

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AnnexAinformative)Exampleoftestdatasheet

Flakiness IndexE N 933-3

Laboratory:

Identificationof thes a m p l e : Dateofreception:O p e r a t o r :

T e s t p o r t i o n m a s sM = g M a s s r e t a i n e d on the 100 mms i e v e = gM a s s p a s s i n gthe 4 mm s i e v e = g

S u m of d i sc a r d e d m a s s e s= gS i e v i n g ont e s t s i e v e s S i e v i n go n bars i e v e sP a r t i c l e s i z ef r a c t i o n dJD, M a s s R,of pa r t i c l es i z e f r a c t i o n d,ID\ N o m i n a lwidthofs l o tin bars i e v e M a s s rr)\p a s s i n g bar s i e v e Fl,

m m 9 m m 9 = m,IR,)x 1008 0 / 1 0 06 3 / 8 05 0 / 6 34 0 / 5 03 1 , 5 / 4 02 5 / 3 1 , 5

5 04 03 1 , 52 52 0162 0 / 2 5 1 2 , 5

1 6 / 2 01 2 , 5 / 1 61 0 / 1 2 , 5

8 / 1 06 , 3 / 85 / 6 . 34 / 5

1 086 , 3543 , 1 52 , 5

My 1R, = M2 =X/ttj=FI={M2/My)x 100 =

n n M0 { I ^ i + X ( d is c a rd e d m a s s e s )+ X( no t te s t e d f r a c t io n m a s s e s ) } < 1U UX 1

M

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AnnexBinformative)Precisio

IO

The results of a cr os s testing experimen t carri ed out by2 0 laboratories in 1994,a spart of a project(Project 134 funded by theEuropean Community under th eMeasurements a n dTesting Progra mme,are given inTabl e B. 1.T h erepeatability r: an dreproducibility /? i val ues hav e been dete rmin ed for thethree tested aggregateson thebasis oftest results obtained from dupli cate test portions pr epar ed bye a c h laboratory from their laboratory sample and subsequently tested.

TableB.1 Repeatabil i t yan dreproducibi l i tyvaluesf ord eterminat ionsoff laki ness ind exes(% bymass off laky particles)ofcoarse aggregates

Target Flvalue :

Item Symbol L e v e l 1 L e v e l 2 L e v e l 31 30 5 0

Upper sieve s i z e D(mm): 20 14 1Number oflaboratories incl uded N 18 1 18 1 18 1Average Fl value X 8,8 29,2 51,1Repeatability standard deviation S H 0,68 1,37 0,80Reproducibility standard deviation SRI 1,03 2,94 4,13Repeatability limit 1,9 3,8 2,2Reproducibil ity limit *1 2,9 8,2 11,61 ) T h eresults of18laboratories out of2 0were accep tedfo rprecision data calcu lations.

F o r other aggregate s i z e s or other lev els of flakiness indexes, th e repeatability a n d reproducibilityvalues can becalculat ed usingthefollowing formul as:

/ v In wo-FIH( bym a s s )=0 , 0 0 2 8 J * -where

D is theaggregate s i z e(mm ),M is themassof test portion (kg)

/ ? ,( bym a s s )=0,95+0,226Fl

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StandardRoman

I C S 9 1 . 1 0 0 . 1 5SR EN933-3

A l u n i e2012

ASR

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nce rc r ipentru determinareacaracteristicilorgeometriceaieagregatelorPartea3:Determinarea formei g ranulelor-Coef ic ient deaplatizare

occoI.sc

Tests for geom etrical properties of aggregates. Part 3: Determination ofparticle shape Flakiness indexEssais pour dterminer les caractristiques gom triques des granulis.Partie 3: Dtermination de la forme des granulats - Coefficientd ap latissement

Aprobare

too

ei

C o r e s p o n d e n t s

AprobatdeDirectorul Generalal A S R O la 29iunie 2012S t a n d a r d u l e u r o p e a n E N9 3 3 - 3 : 2 0 1 2af o s t a d o p t a t p r i n m e t o d a n o t e id e c o n f i r m a r e si ares t a t u tu l u n u i s t a n d a r d r o m n n l o c u i e s t e S RE N 9 3 3 - 3 : 2 0 0 2si S RE N 9 3 3 - 3 : 2 0 0 2 / A 1 : 2 0 0 4Data p u b l i c r i i versiuni i r o m n e : -A c e s t s t a n d a r d e s t e i d e n t i c cus t a n d a r d u l e u r o p e a n E N 9 3 3 - 3 : 2 0 1 2

A S O C I A T I A DES T A N D A R D I ZA R E DIN ROMANIASt r . M e n d e l e e vnr.2 1 - 2 5 , c od 0 1 0 36 2 , B u c u re s t i ,8 w w w . as ro . ro

ASRO Reprodu cerea sau util izarea integrala sau part ial a prezentului standard in oricepublicatii si prin orice procedeu (electronic, mecanic, fotocopiere, microfilmareetc.)esteinterzis dac nu ex ista acordul scris prealabil alASRORe f S RE N 933-3:2012 Ed it ia2

http://www.asro.ro/http://www.asro.ro/

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EUROPEAN STANDARD EN 933-3NORME EUROPENN EEUROPISCHE NORM J a n u a r y 2 0 1 2IC S 9 1 . 1 0 0 .1 5 S u p e r s e d e s E N 9 3 3 - 3 : 1 9 9 7

E n g l i s h V e r s i o nTests for geometrical properties of aggregates - Part 3:

Determination of particle shape - Flakiness indexEssais pour dterminer les caractristiques gomtriques Prfverfahren fr geom etrische E igenscha ften vonde sgranulats-Partie 3: Dtermination de laformedes Gesteinskrnungen-Tei l 3: Bestimmung der Kornform-granulats-C oefficient d'aplatissement Plattigkeitskennzah l

ThisEuropean Standard was approved byC E Non 29 October 2011.C E N m embers are boundtocomplywiththeC E N / C E N E L E CInternalRegu lations which stipulate the conditionsforgivingthisE uropeanStandard the statusofa national standardwithoutany alteration. Up -to-date lists and bibliographical references co ncerning su ch nationalstandardsmay be obtained on applicationtotheC E N - C E N E L E C Management Centreor toa nyC E Nmember.ThisEu ropean Standard exists inthreeofficial versions(English, French, German).Aversion in any other language made by translationunder the responsibilityofaC E N memberintoits own language andnotifiedtothe C E N - C E N E L E CM anagement Centre has the samestatus as the official versions.C E N members are the national standards bodiesofAustria,Belgium.Bulgaria,C roatia. Cyprus,Czech Republic, Denmark, E stonia,Finland, France. Germany,Greece,H ungary, Iceland, Ireland,Italy,L atvia, Li thuania, L uxembourg, Malta, Netherlands, N orway,Poland,Portugal.Ro mania, Slovakia, Slovenia,Spain.Sweden,Sw itzerland, Turkey and United Kingdom.

ftEUROPEAN COMMUTEE FOR STANDAREMZA I IONC O M I T E U R O P E N t N O R M A L I S A T I O NE U R O P I S C H E S K O M I T E E FR N O R M U N G

ManagementCentre: AvenueMarnix 17, B-1000 B r u s s e l s

2012C E N Allightsofexploitationinanyformand by any means reservedworldwide forC E Nnational Members. Ref.N o. EN 933-3:2012:E

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Contents P a g eForeword 31 Scope 52 Normati ve ref erences 53 Term s and definit ions 54 Princip le 65 App aratus 66 Preparat ion oftestporti ons 87 Proc edur e 87.1 Sievi ng ontestsi eves 87.2 Siev in g on bar si eves 8

S 8 Calcu lation and expr essio n of results 8oJ 9 Tes t report 985 9.1 Mandat or y dat a 9< 9.2 Opt ion al data 9^ Ann ex A(informative) Ex ampl e oftestdata sheet 10n Ann ex B (informative) Prec is io n 11oKe=5rahroTJBCOCDT3

oo

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ForewordT h i s document ( E N 933-3:2012) has been prepar ed by Technical Committee C E N / T C 1 5 4A g g r e g a t e s ,th esecretariatofwhich isheldbyBSI.T h i s Europ ean Standard shall begiven thestatus of a national standard, either by publicationof ani d e n t i c a ltextor byendorsement,at thelatest byJul y 2012,a ndconflicting national st anda rds shallbewithdrawn at thelatest byJuly 2012.Attention isdrawnto thepossibilitythat someof theelementsof this document ma y be thesubject ofpatent rights. C E N [and/or C E N E L E C ] shall not be held responsiblefo r identifying an y or all suchpatent rights.

T h i sdocument supersedesE N933-3:1997.T h efollowing changes have been madeto theprevio us edition:

a) theC E N Technica l Specificationha sbeen adopt edas European Standard;Jo b) thedocumenthasbeen editori ally r e v i s e d .

This standard forms part of aserieso f tests for geometrical properties of aggregat es. Tes t meth ods2 forother propertiesa rccoveredby thefollowing Eur ope an Stand ards :raI E N 932Tests forgeneral properties of aggregates;B5 E N 1097Tests for mechanical and physical properties of aggregates;

j | E N 1367Testefor thermal and weathering properties of aggregates;E N 1744Tests for chemical properties of aggregates;

1a E N13179 Tests for filler aggregate used inbituminous mixtures.E N 933.Tests for geometrical properties ofaggregates, consistsof thefollo wing par ts:15 Part 1;Determination ofparticle size distribution Sieving method;

Part 2; Determination ofparticle size distribution Test sieves, nominal size of apertures;Part 3: Determination ofparticle shape Flakiness index;

Part 4: Determination ofparticle shape Shape index; Part 5:Determination of percentage of crushed and broken surfaces in coarse aggregate

particles; Part 6;Assessment ofsurface characteristics Flow coefficient of aggregates; Part 7:Determination ofshell content Percentage ofshells for coarse aggregates; Part 8:Assessment of fines Sand equivalent test;

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