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UDC 624(083. 75) SABS 1200 M - 1984

Approved by t heCOUNCI L OF THE

SOUTH AFRI CAN

BUREAU OF STANDARDS

on 7 November 1984

SOUTH AFRI CAN BUREAU OF STANDARDS

STANDARDI ZED SPECI FI CATI ON

€or

CI VI L ENGI NEERI NG CONSTRUCTI ON

M : SEGMENTED PAVI NG

Obt ai nabl e f romt heSA BUREAU OF STANDARDS

Pri vat e Bag X191

Pret or i a

0001 Republ i c of Sout h Af r i ca

Tel egrams : Comparat or , Pret or i a

Publ i shed and pr i nted i n the Republ i c of Sout h Af r i ca by t heSouth Af r i can Bureau of st andards

Tel ex : 3-21308- SA

ISBN 0-626-07197-6 Gr 5

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3

CONTENTS

SABS 1200 M - 1984segment ed pavi ng

Page Numberl ause

1.2.

2.12.223

3.13 1 13.1.23.233

414. 24.3

5 15.1.15 1 25.25. 35. 45. 55 6

5.6.15. 6. 25.6.35 6 45.7

616.1.16.1.26. 1. 36.2

7 17. 1. 17 1 27. 27. 3747 4 17 .4 .2

7 57677

8.18. 2

3.

4.

5.

6.

7.

8.

SCOPE .......................................................................................I NTERPRETATI ONS .............................................................................support i ng Speci f i cat i ons ...................................................................Appl i cat i on .................................................................................Defi ni t i ons and Abbrevi ati ons ...............................................................MATERI ALS ...................................................................................Uni ts .......................................................................................Gener al .....................................................................................Cl ass. st r ength and t ype ....................................................................Ker bs and Channel s ..........................................................................Sand for Beddi ng and J oi nti ng ...............................................................PLANT .......................................................................................Gener al .....................................................................................Rol l er ......................................................................................

CONSTRUCTI ON ................................................................................Preparati on .................................................................................New wor k ....................................................................................Exi st i ng subbase subst andar d or t oo hi gh ....................................................Edge Restr ai nts .............................................................................Pl aci ng and Compact i ng of Sand Bed ..........................................................Layi ng of Uni ts .............................................................................

Mechani cal Compact or ........................................................................

Fi l l i ng Gaps i n Uni t Pattern ................................................................Compact i on of Uni ts .........................................................................Gener al .....................................................................................Pavi ng subj ect t o wheel l oads exceedi ng 30 kN ...............................................Damaged uni t s ...............................................................................No t r a f f i c unt i l j oi nt s f i l l ed ..............................................................J oi nt Fi l l i ng ...............................................................................TOLERANCES ..................................................................................Gener al .....................................................................................Pavi ng as l ai d .............................................................................Met hod of measur ement of devi ati ons .........................................................Fr equency of checks on smoot hness ...........................................................Perm ssi bl e Devi at i ons ......................................................................TESTI NG .....................................................................................Gener al ....................................................................................Checki ng ....................................................................................Standar d of f i ni shed work not to spec i f i cat i onTr i al Sec t i on ...............................................................................Subbase. Format i on and Ot her Foundat i on Layers ..............................................Bl ocks ......................................................................................Wet st r ength t est ...........................................................................Ot her t ests .................................................................................Concrete f or Gap Fi l l i ng ....................................................................Ker bs. Channel s and Ot her Devi ces ...........................................................Pondi ng .....................................................................................MEASUREMENT AND PAYMENT .....................................................................Pr i nc i pl es ..................................................................................Schedul ed I t ems .............................................................................

..............................................

APPENDI X A. APPLI CABLE STANDARDS .....................................................................

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5 SARS 1200 M - 1984segment ed pavi ng

SOUTl l AFRI CAN BUREAU OF STANDARDSSTANDARDI %ED SPECI FI CATI ON

f orCI VI L ENGI NEERI NG CONSTRUCTI ON

M : SEGMENTED PAVI NG

SCOPEThi s speci f i cat i on covers t he pavi ng of r oads and ot her ar eas w t h precast concret e segment al bl ocks l ai dcl osel y together, t he j oi nts between the uni t s bei ng f i l l ed w th a j oi nt i ng sand.NOTE: The st andar ds r ef err ed t o i n t he speci f i cati on are l i st ed i n Appendi x A

I NTERPRETATI ONSSUPPORTI NG SPECI FI CATI ONSWhere t hi s speci f i cat i on i s r equi red fo r a pr oj ec t t he fo l l ow ng spec i f i cat i ons shal l , i nt e r al i a, f or mpar t of t he contr act document :a) Pro j ect spec i f i cat i on;b) SABS 1200 A or SABS 1200 AA , as appl i cabl e;c) SABS 1200 D or SABS 1200 DA, as appl i cabl e;d) SABS 1200 DM;e) SABS 1200 G or SABS 1200 GA, as appl i cabl e;f ) SABS 1200 M9) SABS 1200 ME.I n addi t i on t o t he speci f i cat i ons ref err ed t o i n 2.1.1, SABS 1200 MK may be r equi r ed f or t he proj ect .NOTE:

APPLICATI ON. Thi s speci f i cat i on cont ai ns cl auses that are general l y appl i cabl e t o pavi ng.I nterpretat i ons and var i at i ons of t hi s speci f i cat i on are set out i n Port i on 2 of t he proj ect

speci f i cat i on ( see 2. 1).

DEFI NI TI ONSAND ABBWVI ATI ONS. For t he pur poses of t hi s speci f i cat i on t he defi ni t i ons and abbrevi ati onsgi ven i n t he appl i cabl e of t he speci f i cat i ons l i sted i n 2.1 and t he fol l ow ng def i ni t i ons shal l appl y:Beddi ng(a ) The l ayer of sand pl aced bet ween t he t op of a subbase and t he bot t omof a bl ock.( b) The oper ati on of pl aci ng a bl ock on t op of a sand l ayer, i ncl udi ng t he compact i ng of t he sand l ayer.Bl ock (uni t) . A precast concret e pavi ng bl ock of such si ze t hat i t can be l i f t ed and l ai d w t h one hand.( The approxi mat e di mensi ons of a bl ock are normal l y as f ol l ows: t hi ckness50-120 nun and t her e ar e nor mal l y 40- 50 bl ocks per squar e met r e of paved area. )Cham er. The bevel l ed edge of t he weari ng f ace of a uni t .Cl ass (of a bl ock). A desi gnati on gi vi ng t he nomnal t hi ckness i n m l l i metr es and, by means of anal phabet i cal code, t he t ype or shape ( see 3.11, e.g. 80/ S-A.Compact i on pass ( pass) . I n r egar d t o compact i ng, one movement of an approved compact i ng machi ne f r omoneend of t he l ayer bei ng compact ed to t he ot her end.Stat ed di mensi ons. The nom nal di mensi ons st at ed by t he manuf actur er.Subbase. The f oundati on l ayer on whi ch t he beddi ng f or bl ock pavi ng i s l ai d. ( Al t hough subbase i susual l y as speci f i ed i n SABS 1200 ME i t may, where shown on det ai l dr aw ngs, be t he base, t he subgr ade or

t he f ormati on.Wet s t r engt h. accor dance

w t h the r el evant method gi ven i n SABS 1058a).

MATERI ALSUNI TSGeneral . Att he poi nt of manuf acture no uni t shal l have any chi p of di mensi on exceedi ng 15 mm or cover i ng mor e t han3 X of t he per i phery of t he surf ace t hat i s i ntended t o be exposed. No uni t shal l have any protuber anceof hei ght exceedi ng 3 m.

The sur f ace t ext ure and col our of t he uni t s shal l f al l w t hi n the r ange of t ext ure and col our r epr esent edby t he manuf acturer ' s approved sampl es. The col our shal l penet r ate t o a depth of at l east 5 mm bel ow t hewear i ng surf ace of each uni t and t he col our ed l ayer shal l be i ntegral l y bound t o the body of t he uni t.Cl ass, Str ength and Type. Except when the bl ocks ar ea) r equi r ed f or pavi ng subj ect t o wheel l oads exceedi ng 30 kN ( see 5. 6. 2); orb) r equi r ed i n terms of t he pr oj ect speci f i cat i on t o be of Cl ass 35 and ar e so schedul ed; orc) r equi r ed t o compl y w t h both (a) and ( b) above,

t he bl ocks used shal l be of Cl ass 25.Cl ass 25 bl ocks when t est ed i n accordance w t h 7.4.1, shal l have an aver age wet st r ength of at l east25 MPa and i ndi vi dual bl ocks shal l have a wet s t r ength of at l east 20 MPa. Bl ocks shal l be of t he t ype( S- A, S-B or S- C) schedul ed or gi ven on t he draw ngs or r equi r ed i n t erms of the proj ect speci f i cat i on,as appl i cabl e, and shal l compl y w t h t he r el evant requi r ement s of SABS 105Ea).

KERBS AND CHANNELS. Kerbs and channel s shal l be of t he sect i ons shown on t he draw ngs and shall compl yw t h t he rel evant r equi r ement s of SABS 927 and, when appl i cabl e, SABS 1200 MK.

SAND FOR BEDDI NG AND J OI NTI NG. Sand f or beddi ng and j oi nt i ng shal l be f r ee f r om subst ances t hat may bedel eter i ous to bl ocks. I n addi t i on, t he gradi ng of t he sand shal l conf orm t o that gi ven i n (a ) or ( b)bel ow, as appl i cabl e, except t hat , wher e evi dence sati sf actor y t o the Engi neer has been provi ded of t hesuccessf ul pr evi ous use of sand havi ng another gr adi ng, s and of such other gr adi ng may be used.a) Beddi ng sand

I t ems 2.1. 1(b)-( g) and SABS 1200 MK may or may not be bound i n t he cont r act document .

Lengt h 200 mm ; w dt h 100 m;

The st r ength at 28 d of a t est bl ock saturated i n water f or 24 h and test ed i n

The uni t s as suppl i ed shal l be f r ee f r omcracks t hat det ract f r om t hei r general appearance.

L

1.

11

22. 12.1.1

2. 1. 2

2.2

2. 3

3313.1.1

3 1 2

32

33

Nom nal si eve si ze ( mm9.524, 75

2, 361.18

0, 6000,3000, 1500 , 0 7 5

95-100

80-10050- 8525- 6010- 30

5- 150-10

....................a) Concr ete pavi ng bl ocks. ( I n cour se of preparat i on. )

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SABS 1200Segment ed

44 1

4. 2

4. 3

55. 15.1.15. 1. 1. 1

5. 1. 1. 2

5. 1. 1. 3

5 1 25.1.2.1

5.1.2.2

5.1.2.3

5.2

5. 3

5. 4

5 5

M - 1984pavi ng

6

b) J oi nt i ng sand shal l pass a 1,18 nun si eve and shal l cont ai n 10-50 %m m of materi al t hat0,075 mn si eve.

PLANTGENERAL. Pl ant t hat i s operat ed on or over uni t s t hat have been l ai d shal l be such t hat i tcause damage t o or di st urbance of t he uni t s ( see 5.6).

ROLLER. A rol l er shal l be subj ect t o approval and shal l be a l i ght ( 2- 4 t ) v i bratory r ol l er or ,r equi r ed ( see 5. 6. 2), a heavy pneumat i c- t yr ed rol l er.

passes a

does not

wher e so

MECHANI CAL COMPACTOR. A mechani cal compact or s uch as a f l at - pl at e vi br at or of hi gh f r equency and l ow

ampl i t ude, w l l be accept abl e provi ded that i t producesa) f or uni t s of t hi ckness exceedi ng 80 mm a cent r i f ugal f orce of 16- 20 kN at a f r equency of 65- 100 HZ

on a pl ate area of 0, 35- 0, 5 m2 (i .e. suff i ci ent t o cover at l east 12 uni ts) ; or

b) f or uni t s of t hi ckness not exceedi ng 80 nun, a centr i f ugal f orce of 7-16 kN at a f r equency of 65- 100 Hz

on a pl ate area of 0, 2-0, 4 m2 ( i .e. suf f i c i ent t o cover at l east 10 uni ts).

CONSTRUCTI ONPREPARATI ONNew Wor kGeneral . where t he pavi ng i s t o be l ai d on new y const r ucted ear t hworks or on an exi st i ng subgr ade thati s t oo l ow, t he subgr ade and subbase shal l be constr ucted i n accor dance w t h t he requi r ement s of SABS

1200 DM and SABS 1200 ME, r especti vel y, and shal l conf orm t o t he tol erance requi r ement s of 6.2.Depressi ons. Depressi ons shal l be f i l l ed w t h materi al t hat has t he physi cal proper t i es speci f i ed f orsubbase mater i al i n SABS 1200 ME, and t he mater i al shal l be compact ed to 98 % of modi f i ed AASHM maxi mumdensi t y. Beddi ng sand shal l not , under any ci r cumst ances, be used f or t hi s purpose.Fal l and l evel . The top of t he subbase shal l be so const r uct ed t hat surf ace water cannot pond and shal lhave a l ongi tudi nal f al l of at l east 1 % and a tr ansverse fal l of at l east 2 X. The l evel aft er

compact i on shal l be the desi gnated l evel of t he t op of t he subbase 2 10 mm ( see 6. 2(b)).Exi st i ng Subbase Subst andar d or t oo Hi ghSubst andar d l ayers. Subst andar d l ayer s and sof t and unst abl e areas i n the subbase ( or subgrade orf ormati on, as appl i cabl e) shal l be r epl aced or st r engthened as speci f i ed i n 5.1.2.2 or 5.1.2.3, asappl i cabl e.Subbase not s t abi l i zed. Any por t i on of an exi st i ng subbase t hat has not been st abi l i zed and i s too hi ghshal l be l owered, harr owed and reconst r ucted t o such depth t hat , af t er compact i on, t he subbase l ayer i sof t he same st andar d and t hi ckness t hroughout or i t shal l compl y w t h the requi r ement s of t he pr oj ectspeci f i cat i on and, i n addi t i on, t he f al l and l evel shal l compl y w t h 5.1.1.3.St abi l i zed subbase. Any port i on of an exi st i ng st abi l i zed subbase t hat i s t oo hi gh shal l be l owered,har rowed and reconst r ucted t o such depth t hat , af t er compact i on, t he subbase l ayer i s of t he samest andard and thi ckness throughout or i t shal l compl y w t h t he r equi rement s of t he proj ect speci f i cat i onand, i n addi t i on, t he fal l and l evel shal l compl y w t h 5.1.1.3. Depressi ons creat ed i n t he cour se ofl oweri ng a st abi l i zed subbase shal l be f i l l ed w t h st abi l i zed subbase materi al and compacted t o f orm asubbase of at l east t he same st andard as that of t he exi st i nq st abi l i zed subbase. Al t ernat i vel y, i n thecase of depressi ons of depth greater t han 50 nun, concr ete havi ng a 7 d cube st r ength of at l east 5 MPashal l be used. The f al l and l evel af t er compact i on shal l compl y w t h 5.1.1.3.

EDGE RESTRAI NTS. Edge r est r ai nt s consi st i ng of ker bs or channel s ( see 3.2) or ot her approved edgest r i ps, as schedul ed or gi ven on t he dr awi ngs, shal l be const ructed on t he subbase ( or other speci f i edf ormati on) bef ore any uni t s are l ai d.

PLACI NG AND COMPACTI NG OF SAND BED. Beddi ng sand shal l be spr ead over t he subbase and evenl y scr eeded i nt he l oose condi t i on so as t o achi eve a compact ed t hi ckness of 25 2 10 nun. When the sand i s s pread, i t smoi st ure content shal l be 6 2 2 %. he sand bed shal l be l ai d sl i ght l y i n advance of t he pl acement oft he uni t s but onl y t o the ext ent t hat t he par t i cul ar ar ea of pavement can be compl et ed on the same day.Where t he sand bed i s acci dental l y compact ed bef ore t he uni t s are l ai d, i t shal l be r aked and evenl yr escreeded i n a l oose condi t i on.

LAYI NG OF UNI TS, The pri nci pal l i nes of t he pavi ng uni t patt ern as l ai d shal l be as speci f i ed i n thepr oj ect speci f i cat i on or gi ven on t he drawi ngs, and as agr eed w t h t he Engi neer bef ore l ayi ng commences.I f the sai d pr i nci pal l i nes are not so speci f i ed, gi ven or agr eed, the uni t s shal l be l ai d i n aher r i nqbone pat t ern i f t he bl ock shape per m t s and, wher e uni t s cannot be so l ai d, they shal l be l ai dw t h t he l ong axi s at r i ght angl es t o t he l i ne of t raf f i c. Except where curved pat t erns are requi r ed,the l i nes of t he uni t patt ern shal l be vi sual l y st rai ght and paral l el t o maj or ker bs or bui l di ngs or

ot her s t r uctur es, as most appropri at e and as appr oved.Where appropr i ate, l i nes shal l be set up at r i ght angl es to each other t o cont r ol t he al i gnment of t heuni ts. J oi nt wi dths shal l be bet ween 2 nun and 6 mm.

Whol e uni t s shal l be l ai d f i rst . Ful l depth cl osure uni t s of spec i al s i ze or cut or par t uni t s sp l i tf r omwhol e uni t s, shal l be f i t t ed i nt o gaps around the peri meter and around servi ce i nstal l ati ons such asmanhol es.Where pl ant has t o be moved over an uncompact ed new y l ai d pavement, boar ds shal l be l ai d t o pr eventdi st ur bance of t he uni ts.

FI LLI NG GAPS I N UNI T PATTERN. Each gap wher e a cl osur e uni t cannot be used, shal l be f i l l ed, af t ert hor ough pre-wett i ng of al l uni t s boundi ng t he gap, w t h concr ete t hat has a 24 h cube st r ength of atl east 15 MPa and contai ns aggr egat e of maxi mumnom nal si ze 9,s mm Fi l l i ng shal l be kept t o an absol utem ni mum and shal l be t o f ul l uni t dept h in al l cases. The concrete shal l be cured f or at l east 24 h bycoveri ng i t w t h moi st sand or appr oved pl asti cs sheeti ng or hessi an f i r m y hel d down at t he edges.Where concrete i s used f or f i l l i ng gaps, no compact i on shal l be carr i ed out wi t hi n 1 m of such f i l l i ngunti l 24 h aft er t he f i l l i ng has been compl eted or unt i l t he speci f i ed cube st r ength of 15 MPa has beenatt ai ned, whi chever occurs f i rst .

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SABS 1200 1LJ-1984

Segment ed pavi ng

compl i ance w t h 6.1.1 and 76 ........................................

5.6561

5.6.2

56 35 . 6 . 4

5.7

6.61611

6.1.2

6.1.3

6.2

7.

7.1

7.1.1

7.1.2

7.2

*

COMPACTI ON OF UNI TSGeneral .At l east t wo compact i on passes shal l be made over t he pavi ng as soon as pr acti cabl e af t er l ayi ng, andbef ore t he i ntr oducti on of any j oi nti ng sand. By t he end of each day, compact i on shal l be compl eted tonot cl oser t han 1 m f r omany f r ee edge. A uni f orm even surf ace shal l be obt ai ned over t he paved area.Pavi ng Subj ect t o Wheel roads Exceedi ng 30 kN. Pavi ng that i s l i kel y, i n terms of the proj ectspeci f i cat i on, t o be subj ect ed regul arl y to wheel l oads exceedi ng 30 kN shal l , a f t e r j oi nt f i l l i ng (See5.7) be f i nal l y l ocked up w th at l east f i ve passes of a heavy pneumati c- t yred r ol l er over t he enti r earea of pavi ng.Damaged Uni t s.

No Traf f i c unt i l J o i nt s Fi l l ed. No vehi cul ar t raff i c shal l be al l owed over the pavi ng unt i l a l l j oi ntshave been f i l l ed w t h sali d ( see 5.7).J OI NT FI LLI NG. The j oi nts shal l not be f i l l ed unt i l a l l c l osure uni t s have been i nser t ed, al l thenecessar y adj ust ments t o l i ne and l evel have been made and t he pavement has been subj ect ed t o at l eastt wo passes of t he compactor .Sand t hat compl i es w t h 3 . 3 ( b ) shal l be broomed i nto t he j oi nts unt i l they are f ul l , and suf f i c i entpasses of a pl at e compact or shal l be made to sett l e t he j oi nt f i l l i ng. The procedur e shal l be repeatedunt i l t he j oi nt s remai n ful l aft er compact i on.On compl et i on of compact i on, al l excess sand shal l be broomed of f and di sposed of . Damage caused dur i ngcompact i on shal l be made good by t he Contr act or at hi s own expense.

TOLERANCESGENERALPavi ng as Lai d. I n addi t i on t o compl i ance w t h 6. 2(c), the f i ni shed surf ace of t he pavi ng shal l , i n theopi ni on of t he Engi neer, present a r egul ar and smoot h appear ance t o the eye.Method of Measurement of Devi ati ons. Any devi ati on f r om f l atness of a pl ane surf ace w l l be measured ast he maxi mum devi ati on of t he surf ace fr om any str ai ght l i ne of l engt h 3 m j oi ni ng two poi nts on thesur f ace, deter m ned by means of a st r ai ght - edge t he ends of whi ch are suppor t ed on i denti cal bl ocks ofsui t abl e thi ckness pl aced over each of t he poi nts.Fr equency of Checks on Smoot hness.shal l , i n the case of r oads, conform t o t he rel evant r equi r ement s of Subcl ause 6.3 of SABS 1200 M and,where an ar ea ot her t han a road i s bei ng paved, a check shal l be car r i ed out on every 300 m2 (max. ) ofar ea paved.

PERM SSI BLE DEVI ATI ONS.

The manner of compact i on of uni t s sli ai l be such that damage to t he uni t s i s prevented.

The manner of compact . i on shal l be as speci f i ed i n 5.6.1.

Damaged uni t s shal l be repl aced and compact ed bef ore j oi nt f i l l i ng i s car r i ed out.

The f r equency of checks on smoot hness carr i ed out by t he Cont r act or

The per m ssi bl e devi ati ons shal l be as gi ven bel ow:

I t em

Per m ss i b l edevi ati on, nun

) egree of accuracy

a) Uni t s as manuf actur ed1) Devi ati on of l ength f romnom nal l engt h ...........................2) Devi at i on of w dth f romnom nal w dth .............................3 ) Devi ati on of dept h ( or t hi ckness) fromnom nal depth (or t hi ckness)4 ) Devi ati on f r omsquareness ( measured as speci f i ed i n SADS 105aa) 1.. .b) Foundati on l ayersI1) Devi ati on of t op of subbase l ayer f r omdesi gnated l evel ...........2) Smoothness of t op of subbase l ayer measur ed on a 3 m s t r ai ght l i ne

3) Thi ckness of 25 mm compact ed sand beddi ng l ayer ...................c) Fi ni shed paving. The f i ni shed surf ace of t he pavi ng shal l , 3 mont hsaf ter openi ng to t ra f f i c , he accurate to w th i n the fo l l ow ng l i mt s:

i n any di rect i on .....................................................

1) Li ne of att ern(i ) devi at i En f romany 3 m st rai ght l i ne, maxi mum ....................i i ) devi at i on f r omany 20 m st rai ght l i ne, maxi mum ...................2) Vert i cal devi at i on f rom 3 m st r a i ght l i nei ) at ker bs, channel s, gul l i es, manhol es and other edge restr ai nt s ..

I

+ 2

+ 2

+ 3

+ 2

+ 10

+ 10

+ 10

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-

-

--

10

20

+ 3 , -0

+10 -15

3

+10 - 15

Checki ng. The Cont r actor shal l carr y o u t suff i ci ent checks to sat i sf y hi msel f t hat t he materi al s usedand t he workmanshi p ( const r uct i on, tol erance and str ength) att ai ned compl y consi st ent l y w t h thespeci f i ed requi remeti ts. Checks w l l be carr i ed out by t he Engi neer and t he r esul t s made avai -l e t o t heCont ract or.Standard of Fi ni shed Work not t o Speci f i cat i on. The Engi neer may carr y out such checks as he deemsnecessary at any poi nt or at any depth or on any l ayer. Wher e the Engi neer' s checks r eveal t hat t hemater i al used or t hat t he const r uct i on or t ol erance st andar d achi eved does not compl y w t h t he appl i cabl erequi rement s of t he speci f i cat i on, or t hat t he compacti on speci f i ed has not been att ai ned, t he Cont ractorshal l so recti f y the work t hat t he materi al s, const ructi on and t ol erance compl y w t h t he sai dr equi r ement s and t he compact i on speci f i ed i s at t ai ned.TRI AL SECTI ON. Commenci ng f r om at l east one permanent edge r estr ai nt t he f i r st secti on of pavi ng ofl ength at l east 20 m and of w dth appr oxi matel y 6 m l ai d as part of t he per manent pavi ng wi l l be regardedas a t r i al sect i on f or t he purpose of assessi ng t he Cont ract or' s abi l i t y t o produce a pavi ng t hatcompl i es w t h t he appl i cabl e requi r ement s of the speci f i cat i on.

Ful l scal e pavi ng uni t l ayi ng shal l not commence unt i l t he tr i al secti on has been l ai d by t he Cont r act orand approved by t he Engi neer. Subsequent l ayi ng oper at i ons shal l be carr i ed out usi ng mater i al s of a t

l east t he same qual i t y and w t h t he same st andar d of wor kmanshi p as i n the approved t ri al secti on.The Cont r actor shal l r emove, at hi s own expense, any t r i al sect i on t hat i s not approved.

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SABS 1200 M - 1984Segment ed pavi ng

8

7. 3

7.4

7.4.1

7.4.2

7.5

7.6

1. 7

8.

8.1

8.2821

8. 2.2

823

8.2.4

8. 2.5

SUBBASE, FORMATI ON AND OTl l ER FOUNDATI ON LAYERS. The subbase, f ormati on and ot her f oundati on l ayers s hal lbe subj ect ed t o t est i ng i n t erms of SABS 12C0 DM and SABS 1200 ME , as appl i cabl e.

BLOCKSWet Str ength Test. The r el evant t est gi ven i n SABS 1058a) shel l be used t o det erm ne whet her bl ockscompl y w t h t he requi r ement s f or wet st r ength gi ven i n 3.1.

Ot her Tests. Bl ocks shal l be subj ected t o such ot her t ests as are gi ven i n SABS 1058a) and i n Precast

concr et e pavi ng bl ocks: Speci fi cati on' ).

CONCRETE FOR GAP FI LLI NG. The concret e used for gap f i l l i ng shal l be subj ect ed t o test i ng i n accordancew t h SABS 1200 G or SABS 1200 GA , as appl i cabl e.

KERBS, CHANNELS AND OTHER DEVI CES. Ker bs, channel s and ot her devi ces used f or edge r est r ai nt s shal l besubj ect ed t o testi ng i n accor dance w t h SAW 1200 MK.

PONDI NG. Wher e t he Engi neer i s of t he opi ni on t hat , notw t hstandi ng compl i ance by t he Cont r act or w t ht he r equi r ement s of 5. 1. 1. 3, pondi ng may occur on t he f i ni shed sur f ace, t he Engi neer may order t he whol eor any part (s) of t he surf ace t o be f l ooded w t h water t o determ ne whet her pondi ng wi l l occur.Rect i f i cat i on of areas where pondi ng i s f ound t o occur shal l be carr i ed ou t by t he Cont r actor at hi s own

expense.

MEASUREMENT AND PAYMENTPRI NCI PLES. Preparati on, i ncl udi ng t r i mm ny to t he desi gnated l evel of t he t op of t he subbase as speci -f i ed i n. 5. 1, and al l other work necessar y i n terms of 5.1 car ri ed out before the l ayer of beddi ng sand i spl aced and pavi ng i s l ai d, w l l be measured and pai d f or i n ter ms of Cl ause 8 of SABS 1200 D or SABS 1200DA , SABS 1200 DM and SABS 1200 ME, as appl i cabl e. Const r ucti on above t he desi gnated l evel of t he top oft he subbase ( see 5.1) w l l be measured and pai d f or under i t ems schedul ed i n ter ms of 8 2

I f pondi ng does not occur t he Empl oyer shal l bear t he cost of t he test.

SCHED J LED I TEMSProvi si on of Edge Restr ai nt s ................................................................ Uni t: mThe l ength measured w l l be that of t he out si de per i meter of t he pavi ng uni t s as shown ont he draw ngs. Separate i t ems as speci f i ed i n Cl ause 8 of SABS 1200 MK wi l l be sc hedul ed,and t he t er ms of SABS 1200 MK shal l appl y.

2Const r ucti on of Pavi ng Compl et e ............................................................. Uni t : mSeparate i t ems w l l be schedul ed f or each type of materi al , cl ass and shaDe of uni t , depth-of pavi ng, t ype of l ayi ng bond and, i f appl i cabl e, col our (or m xture of col ours).The ar ea measured wi l l be t hat t o be paved as shown on t he draw ngs.The rat e shal l cover t he cost of suppl yi ng uni t s and sand, pl aci ng t he beddi ng l ayer , l ayi ngt he uni t s, compact i ng t he pavement , f i l l i ng gaps, f i l l i ng j oi nts, l ocki ng up the pavement( when r el evant ) and removi ng excess sand.Cutt i ng Uni t s t o Fi t Edge Rest rai nt s ........................................................ Uni t : mSeparate i t ems w l l be schedul ed f or str ai ght , r aki ng and ci rcul ar cut t i ng. The l engt hmeasur ed w l l be the l engt h of t hat part of t he edge restr ai nt where i t i s necessary to cutthe uni t s t o f i t .

The rate shal l cover t he cost of cut t i ng, waste of materi al , del ays and di sr upti on of t heprogrami ol i i ng t o Locked-up Condi t i on as Speci f i ed i n 5.6.2 ( Provi si onal ) .......................... Uni t :Appl i cabl e onl y wher e rol l i ng i s requi r ed i n t erms of 56 2

m2

The r ate shal l cover t he cost s of - compl yi ng wi t h 5.6.2 t hat are addi t i onal t o t he cost scover ed by 8.2.2.Tri al Sect i on, not Part of Per manent Work (Size st ated) (Prov. i si ona1) ....................... Uni t : Sum or mAppl i cabl e onl y wher e a t r i al secti on i s or der ed and i s f ound t o be accept abl e but does notf or mpar t of t he wor ks measured under 8.2.2.The rate shal l cover al l t he cost s enumerated i n 8.2.2 t ogether w t h the cost of obt ai ni ngapproval and of del ays and di sr upt i on of t he program

2

-------------a) See p 51) Publ i shed by t he Concr et e Masonr y Associ at i on at Hal f way House i n 1304.

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9 SABS 1200 Eu-1984Segment ed pavi ng

APPENDI X A APPLI CABLE STANDARDS

Ref erence i s made t o t he appl i cabl e i ssues ( see Subcl ause 2 . 2 of SABS 1200 A or SABS 1200 A A, as appl i cabl e) of thef ol l ow ng standards:

SABS 92 7 Ker bs and channel s

SABS 1058 Concret e pavi ng bl ocks ( I n cour se of preparat i on)

SABS 1200 A Ci vi l engi neer i ng const ructi on : Gener al  

SABS 1200 AA Ci vi l engi neer i ng constr uct i on : General ( smal l works )

SABS 1200 D Ci vi l engi neer i ng const ructi on : Eart hwor ks

SABS 1200 DA Ci vi l engi neeri ng const r ucti on : Ear t hworks ( smal l works )

SABS 1200 DM Ci vi l engi neer i ng constr uct i on : Ear t hworks ( r oads, subgr ade)  

SABS 1200 G Ci vi l engi neer i ng constr uct i on : Concrete (st ructural )  

SABS 1200 GA Ci vi l engi neer i ng const ructi on : Concr et e ( smal l works)

SABS. 1200 M Ci vi l engi neer i ng constr uct i on : Roads ( gener al )

SABS 1200 ME Ci vi l engi i i eer i ng constr uct i on : Subbase

SABS 1200 MK Ci vi l engi neer i ng constr uct i on : Kerbi ng and channel l i ng 

ISBN 0-626-07197-6