Atch1_1a_SpecA20105Add.pdf

A20105

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CONCRETE REI NFORCI NG

PART 1 GENERAL

The pr ocedur e f or concr et e r ei nf or c i ng shal l be i n accor dance wi t h MLI T PBMGS A and JASS 5. When cont r adi ct i on happens among f ol l owi ng specification, MLI T PBMGS A and JASS 5, Cont r act or shal l t ake pr ecedence over JASS 5 wi t h Cont r act i ng Of f i cer ' s appr oval .

a. Thi s sect i on shal l appl y t o mat er i al s, f abr i cat i on, pl acement of s l i ce and j oi nt of r ound bar s of 19 mm or smal l er i n di amet er wi t h a st r engt h of SR235 t o SR295 and def or med bar s D41 or smal l er i n nomi nal di amet er wi t h st r engt h of SD295 t o SD390. Fabr i cat i on and pl acement of r ei nf or cement of t ypes, di amet er s and st r engt h l evel s not cover ed by t hi s sect i on shal l be as speci f i ed i n t he Speci al Pr ovi s i ons and/ or as i ndi cat ed on dr awi ngs.

b. The bar t ypes, di amet er s, scope of appl i cat i on, as wel l as t he number , shapes and di mensi ons of bar s shal l be as speci f i ed i n t he Speci al Pr ovi s i ons and/ or as i ndi cat ed on dr awi ngs.

c. The t ypes and di amet er s of wel d mesh and r ei nf or cement gr i d shal l be i n accor dance wi t h t he Speci al Pr ovi s i on and/ or as i ndi cat ed on drawings.

d. Spl i c i ng of r ei nf or cement shal l be l ap spl i ces, gas pr essur e wel di ng spl i ces, mechani cal spl i ces or wel ded spl i ces and shal l be i n accor dance wi t h t he Speci al Pr ovi s i ons. Unl ess speci f i ed i n t he Speci al Pr ovi s i ons, and/ or as i ndi cat ed on dr awi ngs, t he Cont r act or shal l det er mi ne t he met hod of spl i c i ng subj ect t o appr oval by t he Cont r act i ng Of f i cer . Def or med bar s wi t h a di amet er D35 or l ar ger shal l as a r ul e have no l ap spl i ces.

e. Fabr i cat i on and assembl y of r ei nf or c i ng bar s shal l ai m at secur i ng t he necessar y cover dept h as i nt ended by t he desi gn.

1. 1 REFERENCES

The publ i cat i ons l i s t ed bel ow f or m a par t of t hi s speci f i cat i on t o t he ext ent r ef er enced. The publ i cat i ons ar e r ef er r ed t o wi t hi n t he t ext by t he basi c desi gnat i on onl y.

Gui de Speci f i cat i ons and Super vi s i on by Mi ni st r y of Land, I nf r ast r uct ur e and Tr anspor t ( MLI T)

MLI T GSARW Gui del i ne f or Super vi s i on of Ar chi t ect ur al Repai r Wor k

MLI T OCM A Out l i ne of Ar chi t ect ur al Const r uct i on Management ( Kenchi ku Kouj i Sekou Kanr i Youkou)

MLI T PBMGS A Publ i c Bui l di ng Mast er Gui de Speci f i cat i ons f or Ar chi t ect ur al Wor k

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( Kohkyou Kenchi ku Kouj i Hyouj yun Shi you- sho Kenchi ku Kouj i - hen)

MLI T PBRGS A Publ i c Bui l di ng Repai r Gui de Speci f i cat i ons f or Ar chi t ect ur al Repai r Wor k ( Kohkyou Kenchi ku Kouj i Kai shuu Hyouj yun Shi you- sho Kenchi ku Kouj i - hen)

JAPAN I NDUSTRI AL STANDARDS ( JI S)

JI S G- 3112 St eel Bar s f or Concr et e Rei nf or cement

JI S G- 3551 Wel ded St eel Wi r e and Bar Fabr i cs

JI S H- 8641 Zi nc Hot Di p Gal vani z i ng

JAPANESE ARCHI TECTURAL STANDARD SPECI FI CATI ON ( JASS)

JASS 5 Rei nf or ced Concr et e Wor k

1. 2 SUBMITTALS

The f ol l owi ng shal l be submi t t ed t o t he Cont r act i ng Of f i cer f or appr oval .

SD- 01 Pr econst r uct i on Submi t t al s

Wor k Pr ocedur e

Wor k pr ocedur e ( Koushubetsu Sekou Keikaku-sho) shal l i ncl ude l i s t s of ski l l ed wor ker s ( Rei nf or c i ng bar s assembl y and JCAA cer t i f i ed post i nst al l ed anchor i nst al l er s) , pr oduct s of r ei nf or c i ng bar s, wat er st ops, spacer s, suppor t s and adhesi ve anchor s ( cer t i f i cat i ons, k i nds, s i zes, di mensi on, mat er i al s) , execut i on met hod, speci al r ei nf or cement f or openi ngs, wor k f l ow, del i ver y, st or age, handl i ng met hod, t ypes of i nspect i ons/ t est s, cur i ng met hod ( bef or e pour i ng concr et e) , saf et y and envi r onment al measur es, and al l necessar y measur es t o execut e t he wor k.

SD- 02 Shop Dr awi ngs

Det ai l ed Dr awi ngs

SD- 06 Test Repor t s

Qual i t y Cont r ol And I nspect i on Repor t s

1. 3 QUALI TY ASSURANCE

Submi t t he wor k pr ocedur e f or i nst al l at i ons i nst r uct i on, qual i t y cont r ol , f i el d i nspect i on pl an. Per f or m a f i el d i nspect i on i n accor dance wi t h manuf act ur er ' s i nst r uct i ons, MLI T OCM A and cont r act or ' s qual i t y cont r ol pl an. Submi t f i el d i nspect i on r epor t s i ncl udes v i sual i nspect i ons, ver i f i cat i on of mi l l sheet s, mar ki ng on bar s, st at ement of del i ver y, measur ement wi t h measur i ng scal es ( qual i t i es/ l ocat i ons of bar suppor t s, spacer s, anchor i ng l engt h of bar s, l engt h of spl i ces bar s, bend angl es, ext r a l engt h, t ol er ances of f abr i cat i on bar s, et c) .

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1. 4 DELI VERY, STORAGE, AND HANDLI NG

a. Rei nf or c i ng bar s and wel d mesh shal l be st or ed separ at el y accor di ng t o t he t ype, di amet er and l engt h. Rei nf or c i ng bar s shal l not be put i nt o di r ect cont act wi t h t he gr ound. They shal l be pr ot ect ed f r om weat her and ai r - bor ne sal t and shal l be f r ee of di r t , mud and oi l dur i ng st or age.

b. Pr i or t o assembl y, r ei nf or cement bar s shal l be c l eaned t o keep t hem f r ee f r om r ust , oi l , dust and soi l t hat i nt er f er e t he bondi ng of t hem t o concrete.

c. Af t er bei ng t r ansf er r ed t o t he j obsi t e, f abr i cat ed or assembl ed r ei nf or c i ng bar s and wel d mesh shal l be st or ed wi t h t he t ype, di amet er and dest i nat i on c l ear l y l abel ed and mai nt ai ned i n or der . When r ei nf or c i ng bar s have been l ef t s t andi ng f or an appr eci abl e l engt h of t i me af t er pl acement , t hey shal l be r e- i nspect ed accor di ng t o par agr aph b above and pr oper l y c l eaned i f necessar y bef or e pl aci ng concr et e.

PART 2 PRODUCTS

2. 1 REI NFORCI NG STEEL

2. 2 St eel Bar s f or Concr et e Rei nf or cement

Tabl e I : St eel Bar s f or Concr et e Rei nf or cement Speci f i cat i on Number s Types of Symbol

JI S G- 3112 SR235, SR295, SD295A, SD295B, SD345, SD390

2. 3 WELDED WI RE FABRI C

JI S G- 3551, 150 mesh and 6- mm di amet er , unl ess ot her wi se i ndi cat ed or r ecommended by t he manuf act ur er . Pr ovi de f l at sheet s of wel ded wi r e f abr i c f or s l abs and t oppi ngs.

2. 4 WI RE TI ES

Use wi r e t i es t hat ar e 0. 8 mm i n di amet er bl ack anneal ed i r on wi r e wi r e or st ai nl ess st eel made.

2. 5 ADHESI VE ANCHORS

Pr ovi de D10 di amet er adhesi ve anchor s. Mi ni mum concr et e embedment of 90 mm or manuf act ur e r ecommendat i on dept h. The chemi cal shal l be conseal ed i n t he f l exi abl e f i l m t ube. The chemi cal agent shal l be consi st i ng of non- st yr ene epoxy acr yl at e r esi n, s i l i cat ed aggr egat es, and gr anul ar aur r i ng agent . The chemi cal shal l be i nst al l ed by capsul e met hod ( r ot ar y/ i mpact t ype) . The anchor bol t s shal l be manuf act ur e r ecommended pr oduct s. The t i p of anchor bol t s shal l be cut i n t he shape of 45 degr ee.

suggest ed Sour ce:

AR Chemi cal Set t er , Asahi Kasei Comr por at i on or appr oved equal .

2. 6 SUPPORTS AND SPACERS

Pr ovi de bar suppor t s compl yi ng wi t h t he r equi r ement s of JASS 5. Pr ovi de pl ast i c- coat ed st eel r ods, st ai nl ess st eel or concr et e. The mor t ar spacer s shal l not be used. The spacer s f or f l oor s l abs shal l be st eel as a gener al

SECTI ON 03 20 00 Page 3 r ul e. Rust pr oof spacer s conf or mi ng t o t he JI S H- 8641, t ype " 2" ( HDZ35 cl ass or mor e shal l ) be used f or exposed concr et e f i ni sh.

2. 7 TESTS, I NSPECTI ONS, AND VERI FI CATI ONS

Per f or m mat er i al t est s, speci f i ed and r equi r ed by appl i cabl e st andar ds, by an appr oved l abor at or y and cer t i f i ed t o demonst r at e t hat t he mat er i al s ar e i n conf or mance wi t h t he speci f i cat i ons. Per f or m and cer t i f y t est s, i nspect i ons, and ver i f i cat i ons and cer t i f y . Submi t cer t i f i ed t est s r epor t s of r ei nf or cement st eel showi ng t hat t he st eel compl i es wi t h t he appl i cabl e speci f i cat i ons f or each st eel shi pment and i dent i f i ed wi t h speci f i c l ot s pr i or t o pl acement .

PART 3 EXECUTI ON

3. 1 REINFORCEMENT

Fabr i cat e and pl ace r ei nf or cement st eel and accessor i es as speci f i ed, as i ndi cat ed, and as shown on appr oved shop dr awi ngs. Fabr i cat i on and pl acement det ai l s of st eel and accessor i es not speci f i ed or shown must be i n accor dance wi t h JASS 5 and MLI T PBMGS A. Pl ace saf et y caps on al l exposed ends of ver t i cal concr et e r ei nf or cement bar s t hat pose a danger t o l i f e saf et y. Face wi r e t i e ends away f r om t he f or ms. Submi t det ai l ed drawings( Concrete Kutaizu, Kakushu Shousaizu, et c) showi ng r ei nf or c i ng st eel pl acement , schedul es, s i zes, gr ades, and spl i c i ng, bendi ng det ai l s , and cover dept h. Show suppor t det ai l s i ncl udi ng t ypes, s i zes and spaci ng.

3. 2 FABRI CATI ON OF REI NFORCEMENT

Del et er i ousl y bent or def ect i ve bar s shal l no be used. Rei nf or c i ng bar s i n coi l shal l be used af t er passi ng t hr ough a st r ai ght ener . Bar s shal l not be damaged dur i ng t he st r ai ght eni ng pr ocess. Rei nf or c i ng bar s shal l be cut t o t he speci f i ed di mensi ons accor di ng t o shop dr awi ngs. Cut t i ng shal l be per f or med usi ng a shear cut t er or ot her s i mi l ar devi ces. Rei nf or c i ng bar s shal l be f abr i cat ed accor di ng t o t he wor k pr ocedur e, shop dr awi ngs and i n accor dance wi t h TABLE I I . Rei nf or c i ng bar s shal l be bent col d and t he conf i gur at i ons and di mensi ons shal l be i n accor dance wi t h t he Speci al Pr ovi s i on and/ or as i ndi cat ed on dr awi ngs. Unl ess speci f i ed i n t he Speci al Pr ovi s i on and/ or as i ndi cat ed on dr awi ngs, t he conf i gur at i ons and di mensi ons shal l be i n accor dance wi t h TABLE I I I .

TABLE I I : Tol er ances f or Fabr i cat i on Di mensi ons* Item Mark* Tolerance(mm)

Fabricating dimension*

Longi t udi nal bar s D25 and Under a, b +/-15

D29 t o D41 a, b +/-20 st i r r ups, t i es, spi r al bar s a, b +/-5

Over al l l engt h af t er f abr i cat i on l +/-20

* Met hods of measur i ng t ypi cal f abr i cat i on di mensi ons, mar k, and over al l l engt h af t er f abr i cat i on ar e i l l ust r at ed i n Appendi x 10. 1 i n JASS 5.

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TABLE I I I : Conf i gur at i ons and Di mensi ons of Bends of Longi t udi nal Bar s i n Col umns, Beams and Foundat i ons:

Bendi ng angl e (degree)

Extra Length

I nsi de di amet er of bend ( D)

SD295A, SD295B, SD345 SD390

Less t han D16 D19~D38 D19~D38

180 4d or mor e mor e t han 3d mor e t han 4d mor e t han 5d

135 6d or mor e

90 8d or mor e

135 and 90( wi dt h f i x i ng bar )

4d or mor e

NOTES:

( 1) " d" denot es t he di amet er f or r ound bar ds and t he nomi nal di amet er f or def or med bar s.

( 2) " D" denot es f or i nsi de di amet er bend.

( 3) Fi gur es shal l conf or m t o t he Appendi x 5. 3. 1 i n MLI T PBMGS A.

( 4) When usi ng 90 degr ee hook f or t he spl i ce j oi nt of t he spi r al bar s, end l engt h shal l be 12d or l onger .

( 5) When 90 and 135 degr ee hook at t he end of t he upper r ei nf or cement of a cant i l ever ed f l oor s l ab or at t he f r ee end of t he wal l bar s, t he end l engt h shal l be 4d or l onger .

( 6) For s l ab r ei nf or cement or wal l r ei nf or cement , r ound bar shal l not be used, except wel d mesh.

( 7) When t he i nner r adi us of bent r ei nf or cement s smal l er t han t hose i n t he above t abl e i s necessar y, pr i or t est bendi ng shal l be made and conf i r med t hat i t i s har ml ess t o use, subj ect t o t he appr oval of t he Cont r act i ng Officer.

( 8) When SD490 r ei nf or cement ar e t o be bent mor e t han 90 degr ee bend, pr i or t o t est bendi ng shal l be made and conf i r med t hat i t i s har ml ess t o use, subj ect t o t he appr oval of Cont r act i ng Of f i cer .

3. 2. 1 Hooks

Fr ee ends of r ei nf or cement i ndi cat ed i n f ol l owi ng bel ow shal l be pr ovi ded wi t h hooks.

a. Round bar s

b. St i r r ups and Hoops

c. Out si de cor ner r ei nf or c i ng bar s of col umns and beams ( excl udi ng f oot i ng beams)

d. Rei nf or cement f or chi mneys

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3. 3 PREPARATI ON BEFORE ASSEMBLY OF REI NFORCEMENTS

The cont r act or shal l t ake measur es f or f abr i cat i on accur acy, maki ng i n or der t o assur e t he l ocat i ons of member s and t o secur e necessar y cover dept h. Pl acement , assembl y, and t r anspor t at i on of r ei nf or cement bar s shal l not be be commenced unt i l concr et e has r eached t o t he sui t abl e st r engt h whi ch handl es t hei r l oads and no adver se ef f ect t o t he concr et e.

3. 4 SI TE- ASSEMBLED REI NFORCEMENT

When r ei nf or cement s ar e assembl ed on s i t e, r ei nf or cement shal l be pr oper l y ar r anged i n t he speci f i ed posi t i ons accor di ng t o t he shop dr awi ngs and wor k pr ocedur e, and shal l be f i r ml y secur ed t o avoi d di spl acement dur i ng pour i ng concrete.

The cl ear ance bet ween r ei nf or c i ng bar s shal l be at l east 1. 25 t i mes t he maxi mum aggr egat e s i ze but not l ess t han 25 mm and shal l be not l ess t han

1. 5 t i mes t he di amet er of r ound bar s or 1. 5 t i mes t he nomi nal di amet er of def or med bar s.

Rei nf or c i ng bar s and embedded ar t i c l es ar ound t hr ough hol es i n beams and openi ngs i n wal l s and sl abs shal l be i n accor dance wi t h t he Speci al Pr ovi s i on, shop dr awi ngs, and/ or wor k pr ocedur e.

Mat er i al s and l ocat i ons of bar suppor t s, spacer s shal l be conf or m t o t he Tabl e I V.

3. 5 ASSEMBLY

I n assembl y or r ei nf or c i ng bar s, t he i nt er sect i ng poi nt and t he spl i ced j oi nt s of t he bar s shal l be t i ed t oget her wi t h mor e t han 0. 8 mm di amet er i r on wi r e, usi ng spacer s, t r est l es, and suspensi on met al s i n appr opr i at e pl aces, t he end sect i on of t i es shal l be bent t o t he i nwar d t o secur e t he appr opr i at e cover dept h of r ei nf or c i ng bar s.

3. 6 SPLI CE AND ANCHORI NG

Spl i c i ng of r ei nf or c i ng bar s shal l be l ap spl i ce, gas pr essur e wel di ng, or speci al t ype spl i c i ng, and appl i cat i on shal l conf or m t o t he JASS 5. I f t her e i s no Speci al Speci f i cat i ons or appl i cabl e chapt er s gi ven, t he mai n r ei nf or c i ng bar s f or beams and col umns shal l be gas pr essur e wel ded, and ot her bar s shal l be l ap spl i ce.

3. 6. 1 Locat i on of Lap Spl i c i ng and Anchor i ng Met hod

The l ocat i on of l ap spl i c i ng and anchor i ng met hod of r ei nf or c i ng bar s shal l be i n accor dance wi t h Fi gur es i n JASS 5.

1. End of anchor age of spi r al bar s shal l be i n accor dance wi t h Fi gur e 10.2.

2. Locat i on of spl i ce and anchor i ng of col umn bar s shal l be i n accor dance wi t h Fi gur e 10. 3.

3. Locat i on of spl i ce and anchor i ng of beam bar s shal l i n accor dance wi t h Fi gur e 10. 4. Bot t om bar s of beams shal l be i n pr i nci pl e bent up and embedded i nt o t he beam- t o- col umn connect i on.

4. Locat i on of spl i ce and anchor i ng of wal l bar s shal l be i n accor dance

SECTI ON 03 20 00 Page 6 wi t h Fi gur e 10. 5.

5. Anchor i ng of s l ab bar s shal l be i n accor dance wi t h Fi gur e 10. 6.

6. Anchor i ng of wel d mesh shal l be i n accor dance wi t h Fi gur e 10. 7.

7. Locat i on and anchor i ng of f oundat i on beam bar s shal l be i n accor dance wi t h Fi gur e 10. 8.

3. 6. 2 Lap Spl i c i ng

Lap spl i c i ng shal l conf or m t o t he f ol l owi ngs, and i n case t he r ei nf or c i ng bar s t o be j oi nt ed have di f f er ent di amet er s, smal l er di amet er gover ns t o det er mi ne t he l ap l engt h:

The l engt h of l ap spl i ce f or col umns, mai n r ei nf or c i ng bar s of beams, r ei nf or c i ng bar s of bear i ng wal l s shal l conf or m t o t he Speci al Speci f i cat i ons. I f t her e i s no Speci al Speci f i cat i ons gi ven f or t he l engt h of l ap spl i ce of bear i ng wal l s, use t he l ar ger number bet ween 40d ( 50D f or l i ght wei ght concr et e) and t he number i n Tabl e I V.

The l engt h of l ap spl i ce ot her t han above par agr aph 1 shal l conf or m t o Tabl e I V.

TABLE I V: Lengt h f or Lapped Spl i ces of Rei nf or c i ng Bar s Cl ass of Rei nf or ci ng Bar Concr et e Desi gn St andar d

St r engt h Fc ( N/ mm2) L1(without

Hook) L1h(with

Hook)

SD295A

SD295B

18 45d 35d

21 40d 30d

24, 27 35d 25d

30, 33, 36 35d 25d

SD345

18 50d 35d

21 45d 30d

24, 27 40d 30d

30, 33, 36 35d 25d

SD390

21 50d 35d

24, 27 45d 35d

30, 33, 36 40d 30d

Notes:

( 1) L1: Lengt h f or Lapped Spl i ces of Rei nf or c i ng Bar s wi t hout hook.

( 2) L1h: Lengt h f or Lapped Spl i ces of Rei nf or c i ng Bar s wi t h hook.

( 3) L1h shal l not i ncl ude " l" as shown i n Fi g. 5. 3. 1. i n MLI T PBMGS A.

( 4) I n case of us i ng l i ght wei ght concr et e, add 5d t o t he val ues of Tabl e I V above.

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3. 6. 3 Locat i ons of Adj acent Joi nt s

Locat i ons of adj acent j oi nt s shal l conf or m t o Tabl e V. However , i n t he case of wal l and s l ab wi t h D16 or smal l er shal l be excl uded. The spl i ces of mai n r ei nf or c i ng bar s of col umns and beams i n t he same l ocat i on shal l conf or m t o t he Speci al Speci f i cat i on under t he pr ef abr i cat ed met hod.

TABLE V: Locat i on of Adj acent Joi nt s

Lapped Splices wi t h hook

St agger l engt h ( a) i n adj acent j oi nt s shal l be equal t o appr ox. 0. 5 x Lengt h f or Lengt h f or Lapped Spl i ces of Rei nf or ci ng Bar s( L1h) .

Ends di st ance ( a) of adj acent j oi nt s i n l engt h f or Lapped Spl i ces of Rei nf or ci ng Bar s shal l be equal t o 0. 5 x ( L1h) or mor e.

wi t hout hook

St agger l engt h ( a) i n adj acent j oi nt s shal l be equal t o appr ox. 0. 5 x Lengt h f or Lengt h f or Lapped Spl i ces of Rei nf or ci ng Bar s( L1) .

Ends di st ance ( a) of adj acent j oi nt s i n l engt h f or Lapped Spl i ces of Rei nf or ci ng Bar s shal l be equal t o 0. 5 x ( L1) or more.

Pressure Wel ded Joi nt -

The di st ance ( a) f r om pr essur e wel d poi nt s i n adj acent j oi nt s shal l be 400 mm or mor e.

Mechanical Joint -

The di st ance bet ween ( a) f r om i n cent er of mechani cal j oi nt s i n adj acent j oi nt s shal l be equal t o 400 mm or mor e, and shal l be equal or mor e t han l engt h ( b) of t he mechani cal j oi nt f i t t i ng pl us 40 mm.

Not e: Symbol s ( a and b) i n Tabl e V shal l r ef er enced i n t he appendi x 5. 3. 3 in MLI T PBMGS A.

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3. 6. 4 Anchor age Lengt h

Anchor age of t he r ei nf or c i ng bar s shal l conf or m t o t he f ol l owi ngs:

a. Anchor age l engt h shal l conf or m t o Tabl e VI .

TABLE VI : Lengt h f or Anchor age of Rei nf or c i ng Bar s Class of Reinforcing

Bar

Concrete Design standard Strength (N/mm2)

St r ai ght bar s Hooked bar s

L1 L2 L3

L1h L2h L3h

Joist Slab Joist Slab

SD295A

SD295B

18 45d 40d

20d 10d and more than

150 mm

35d 30d

10d -

21 40d 35d 30d 25d

24, 27 35d 30d 25d 20d

30,33,36 35d 30d 25d 20d

SD345

18 50d 40d 35d 30d

21 45d 35d 30d 25d

24, 27 40d 35d 30d 25d

30,33,36 35d 30d 25d 20d

SD390

21 50d 40d 35d 30d

24, 27 45d 40d 35d 30d

30,33,36 40d 35d 30d 25d

Note:

( 1) L1: Lengt h f or anchor age of r ei nf or c i ng bar s, L1h: Lengt h f or anchor age of r ei nf or c i ng bar s wi t h hook.

( 2) L2, L2H: Lengt h f or Anchor age of Rei nf or c i ng Bar s wi t hout / wi t h hook i n t he l ocat i on when woul d not have f r act ur e br eaki ng.

( 3) L3: Lengt h f or anchor age of r ei nf or c i ng bar s i n j oi st or bot t om r ei nf or c i ng bar s, However , f oundat i on bear i ng s l ab, and Joi nt s shal l be excl uded. For 20d and 25d of cant i l ever j oi st and cant i l ever s l ab shal l be upgr aded t o 25d or mor e.

( 4) L3h: Joi st and bot t om r ei nf or c i ng bar s wi t h hook.

( 5) I n case of havi ng r ei nf or c i ng bar s wi t h hook l engt h anchor age of r ei nf or c i ng bar s shal l not i ncl ude l engt h of hook as shown on f i gur e 5. 3. 2 in MLI T PBMGS A. I nt er medi at e bent shal l not be al l owed f or r ei nf or c i ng bar s wi t h hook.

( 6) I n case of us i ng l i ght wei ght concr et e, add 5d t o t he val ues of Tabl e VI above.

b. When t he necessar y anchor i ng l engt h ( L) as ver t i cal bent anchor age i n beam- t o- col umn connect i on can not be met wi t h hooked bar s i n Tabl e VI , bendi ng anchor i ng met hod shal l conf or m t o t he Fi gur e 5. 3. 3 i n MLI T PBMGS A, and conf or m t o f ol l owi ngs i , i i and i i i :

SECTI ON 03 20 00 Page 9 i . Ent i r e l engt h shal l be mor e t han l engt h of st r ai ght bar s or mor e i n TABLE VI , Lengt h f or Anchor age of Rei nf or c i ng Bar s.

i i . Ext r a l engt h shal l 8d or mor e.

i i i . The pr oj ect ed anchor i ng l engt h ( La and Lb) bet ween t he f ace of beam- t o- col umn connect i on and out s i de of r ei nf or c i ng bar s shal l conf or m t o t he Tabl e VI I . However , anchor i ng i n col umn f or beam mai n r ei nf or c i ng bar s shal l be 3/ 4 of col umn hei ght as a gener al r ul e.

TABLE VI I : Pr oj ect ed Lengt h of Anchor i ng Cl ass of

Rei nf or ci ng Bar Concr et e Desi gn st andar d St r engt h ( N/ mm2) La Lb

SD295A

SD295B

18 20d 15d

21 15d 15d

24, 27 15d 15d

30,33,36 15d 15d

SD345

18 20d 20d

21 20d 20d

24, 27 20d 15d

30,33,36 15d 15d

SD390

21 20d 20d

24, 27 20d 20d

30,33,36 20d 15d

Notes:

( 1) La: Pr oj ect ed l engt h of beam mai n r ei nf or c i ng bar s i n bendi ng anchor i ng i n col umn ( i ncl udi ng Foundat i on beams, cant i l ever ed beams, cant i l ever ed joists) ( 2) Lb: Pr oj ect ed l engt h of bendi ng anchor i ng f or t op r ei nf or c i ng bar s i n j oi st and s l ab.

( 3) I n case of us i ng l i ght wei ght concr et e, add 5d t o t he val ues of Tabl e VI I above.

c. Spl i c i ng and anchor age of t he ot her r ei nf or c i ng bar s shal l conf or m t o t he f ol l owi ngs:

Spl i c i ng and anchor age of t he wel ded st eel mesh shal l conf or m t o Fi gur e

5. 3. 4 i n MLI T PBMGS A. L1 shal l conf or m t o t he Tabl e I V. L2 and L3 shal l conf or m t o t he Tabl e VI .

Spl i c i ng and anchor age f or spi r al bar s shal l conf or m t o t he f i gur e

5. 3. 5 i n MLI T PBMGS A.

3. 7 SUPPORTS

The mat er i al s and l ocat i ons of bar suppor t s, spaces and et c shal l be

SECTI ON 03 20 00 Page 10 speci f i ed i n TABLE VI I I as st andar d r ef er ences.

TABLE VI I I : St andar ds f or Types, Quant i t i es and Locat i ons of Bar Suppor t s, Spaces and Ot her s

Pl ace of Use

Slabs Beams Columns

Material St eel or Concrete

St eel or Concr et e St eel or Concr et e

Quantity or

Locations

Appr ox. 1. 3 pi eces per SM f or t op and bot t om bar s.

At I nt er val of Appr ox. 1. 5 m and l ess t han 1. 5 m at ends.

Upper pi eces: Appr ox. 0. 5 m f r om t he beam bottom.

Mi ddl e pi eces: I n t he mi ddl e bet ween t he upper pi eces and t he col umn bot t om.

Two pi eces per s i de not wi der t han 1. 0 m f or each l evel .

Thr ee pi eces per s i de 1. 0 m and wi der f or each l evel .

Remarks Top end bar s and cent er bot t om bar s shal l al ways be pr ovi ded.

At t op or bot t om f or beams. For per i met er beams at s i des and t op or bottom.

At poi nt - symmet r y i n t he same pl ane.

Pl ace of Use

Footing Foot i ng beams Wal l s, ext er nal wal l s of basement

Material St eel or Concrete

St eel or Concr et e St eel or Concr et e

Quantity or

Locations

8 pi eces f or appr ox. 4 SM ar ea. 20 pi eces f or appr ox. 16 SM area.

at i nt er val s of appr ox. 1. 5 m and l ess t han 1. 5 m at ends.

Upper pi eces: Appr ox. 0. 5 m f r om t he beam bot t om. Mi ddl e pi eces: at ver t i cal i nt er val s of appr ox. 1. 5 m f r om t he upper pi eces. At hor i zont al i nt er val s of appr ox. 1. 5 m and l ess t han 1. 5 m at ends.

Remarks

A si des and t op or bottom. -

NOTES:

SM: Squar e Met er s ( 1) Pl ast i c spacer s may be used f or beams, col umns, f oot i ng beams, wal l s and basement ext er nal wal l s pr ovi ded t hat t hey ar e used onl y al ong ver t i cal surfaces.

( 2) Spacer s f or pl aci ng on i nsul at i on shal l have a cont act sur f ace l ar ge enough t o pr event t hei r s i nki ng i nt o t he i nsul at i on under t he wei ght t hey supports.

3. 8 THI CKNESS OF CONCRETE COVER

The mi ni mum t hi ckness of concr et e cover f or r ei nf or c i ng bar s and wel ded st eel mesh shal l conf or m t o Tabl e I X. However , when usi ng bar s l ar ger t han D29 f or mai n r ei nf or c i ng bar s of col umns and beams, t he mi ni mum t hi ckness of concr et e cover shal l be l ar ger t han 1. 5 t i mes of t he di amet er of t he mai n r ei nf or cement .

TABLE I X: Mi ni mum Thi ckness of Concr et e Cover f or Rei nf or c i ng Bar s ( mm)

SECTI ON 03 20 00 Page 11

Type of St r uct ur al sect i on Mi n. Thi ckness

Sect i ons not i n cont act wi t h soi l

Sl abs, Wal l s ot her t han Bear i ng Wal l

Wi t h f i ni sh 20

Wi t hout f i ni sh 30

Col umns, Beams, Bear i ng Wal l s

Indoor Wi t h f i ni sh 20

Wi t hout f i ni sh 30

Outdoor Wi t h f i ni sh 30

Wi t hout f i ni sh 40

Ret ai ni ng Wal l s, Pr essur e Sl ab 40

Sect i on i n cont act wi t h soi l

Col umn, Beams, Sl abs, Wal l s *40

Foundat i on, Ret ai ni ng Wal l s, Pr essur e Sl ab *60

Sect i ons subj ect ed t o hi gh heat such as chi mney 60

Notes:

( 1) The t hi ckness of t he concr et e cover mar ked by * i s appl i cabl e t o or di nar y concr et e. I n case of l i ght wei ght concr et e, t hi s shal l conf or m t o t he Speci al Pr ovi s i on .

( 2) " Wi t h f i ni sh" r ef er s t o f i ni sh such as mor t ar and does not i ncl ude pai nt coat spr ayi ng or ot her f i ni shes whi ch ar e not ef f ect i ve f or t he endur ance of r ei nf or c i ng bar s.

( 3) The t hi ckness of l evel i ng concr et e shal l not be i ncl uded i n t he t hi ckness of concr et e cover of t hose sect i ons of t he s l ab, beam, f oundat i on and r et ai ni ng wal l t hat di r ect l y i n cont act wi t h t he soi l .

( 4) The t hi ckness of concr et e cover f or pi l e f oundat i on shal l be measur ed f r om t he t op of t he pi l e.

( 5) Sect i ons subj ect ed t o sal t damage and sect i ons whi ch have di sadvant aged i n t er ms of dur abi l i t y shal l conf or m t o t he Speci al Speci f i cat i ons.

The concr et e cover t hi ckness of col umns and beams i n f abr i cat i on/ assembl y shal l be added 10 mm t o t he mi ni mum concr et e cover t hi ckness i n Tabl e I X.

The t hi ckness of concr et e over af t er f abr i cat i on/ assembl y af t er assembl y shal l be mor e t han t he mi ni mum r equi r ed t hi ckness.

The cl ear ance bet ween r ei nf or c i ng bar s shal l be at l east 1. 25 t i mes t he maxi mum aggr egat e s i ze but not l ess t han 25 mm and shal l be not l ess t han

1. 5 t i mes t he di amet er of r ound bar s or 1. 5 t i mes t he nomi nal di amet er of def or med bar s conf or mi ng t o t he f i gur e 5. 3. 6 i n MLI T PBMGS A.

3. 9 WELDED- WI RE REI NFORCEMENT PLACEMENT

Pl ace wel ded- wi r e r ei nf or cement i n s l abs as i ndi cat ed. Rei nf or cement pl aced i n s l abs on gr ade must be cont i nuous bet ween expansi on, const r uct i on, and cont r act i on j oi nt s. Rei nf or cement pl acement at j oi nt s must be as i ndi cat ed.

May l ap spl i ces i n such a way t hat t he over l apped ar ea equal s t he di st ance bet ween t he out er most cr osswi r es pl us 50 mm. St agger l aps t o avoi d

SECTI ON 03 20 00 Page 12 cont i nuous l aps i n ei t her di r ect i on. Wi r e or c l i p t oget her r ei nf or cement at l aps at i nt er val s not t o exceed 1. 2 m. Posi t i on r ei nf or cement by t he use of suppor t s.

3. 10 ADHESI VE ANCHORS

Pr ovi de i n accor dance wi t h manuf act ur er ' s wr i t t en i nst r uct i ons and conf or m t o t he MLI T GSARW and MLI T PBRGS A. I nst al l adhesi ve anchor s by t he Japan Const r uct i on Anchor Associ at i on ( JCAA) cer t i f i ed i nst al l er s ( toku-2-shu ato-sekou-anchor sekou-shi) . The cont r act or shal l submi t t he copy of cer t i f i cat i on, and i ncl ude cer t i f i cat es i n t he wor k pr ocedur e ( Koushubetsu Sekou Keikaku-sho) of t hi s sect i on.

I nst al l pl at e dowel s accor di ng t o t he manuf act ur er ' s r ecommendat i ons.

3. 11 QUALI TY CONTROL AND I NSPECTI ON OF REI NFORCEMENT

The qual i t y cont r ol and i nspect i on of f abr i cat i on and pl acement of r ei nf or c i ng bar s shal l be i n accor dance wi t h TABLE X. Cont r act or shal l submi t t he qual i t y cont r ol and i nspect i on pl ans i n t he wor k pr ocedur e. The f i nal qual i t y cont r ol and i nspect i ons shal l be conduct ed i n t he pr esence of Gover nment per sonnel ( s) , but t he cont r act or shal l per f or m t he cont r act or ' s qual i t y cont r ol and own i nspect i ons pr i or t he f i nal qual i t y cont r ol and i nspect i ons. The cont r act or shal l submi t t he qual i t y cont r ol and i nspect i on r epor t s.

SECTI ON 03 20 00 Page 13

TABLE X: Qual i t y Cont r ol and I npsect i on of Fabr i cat i on and Pl acement of Reinforcement

Item Criteria Met hod of Test / I nspect i on Time/Frequency

Bar s and wel d mesh

Dr awi ngs and Specification

Conf i r mat i on by checki ng mi l l sheet s, mar ki ng on t he bar and mar ki ng of bundl es agai nst st at ement s of delivery.

Vi sual exami nat i on and measur ement of di amet er s and l engt h.

MLI T OCM A

At t he t i me of del i ver y and before commencement of concr et e wor k.

Types and di amet er s of bars

Dr awi ngs and Specification

Conf i r mat i on by checki ng mi l l sheet s, mar ki ng on t he bar and mar ki ng of bundl es agai nst st at ement s of delivery.

Vi sual exami nat i on and measur ement of di amet er s.

MLI T OCM A

Upon del i ver y of bar s or f abr i cat ed bar s

Fabrication Dimensions

Para.3.2, FABRI CATI ON OF

REINFORCEMENT

Measur ement wi t h measur i ng scales.

Sampling i nspect i on f or each t ype of f abr i cat i on, upon del i ver y of f abr i cat ed bar s, or t he f i r st bar or set of bar s af t er f abr i cat i on

SECTI ON 03 20 00 Page 14

Item Criteria Met hod of Test / I nspect i on Time/Frequency

Quantity

Drawings, Specification and Shop Dr awi ngs

Vi sual Exami nat i on and measur ement wi t h measur i ng scales.

Whenever necessar y dur i ng or af t er bar placement

Locat i on of bar s

Bar spaci ng

Locat i on and l engt h of spl i ces and anchors

Clearance bet ween bar s

Para.3.3, PREPARATION

BEFORE ASSEMBLY

OF REI NFORCEMENTS

Para.3.8

THI CKNESS OF

CONCRETE COVER

Measur ement wi t h measur i ng scales.

Materials, distribution and number of spacer s and bar supports

Vi sual Exami nat i on

Fi r mness of bar fixing

No r i sk of def or mat i on or displacement dur i ng concr et e placing

3. 11. 1 I dent i f i cat i on of Spl i ces

Est abl i sh and mai nt ai n an appr oved met hod of i dent i f i cat i on of al l f i el d spl i ces whi ch wi l l i ndi cat e t he spl i cer and t he number assi gned each spl i ce made by t he spl i cer .

3. 11. 2 Cor r ect i on of Def i c i enci es

Do not embed spl i ce i n concr et e unt i l sat i sf act or y r esul t s of v i sual exami nat i on and t he r equi r ed i nspect i ons have been obt ai ned. Remove and r e- spl i ce al l spl i ces havi ng v i s i bl e def ect s or r epr esent ed by sampl i ng i nspect i ons whi ch do not sat i sf y t he i nspect i ons.

- - End of Sect i on - -

SECTI ON 03 20 00 Page 15

SECTI ON 03 30 01

CONCRETE

PART 1 GENERAL

The pr ocedur e f or concr et e and f or mwor k shal l be i n accor dance wi t h MLI T PBMGS A and JASS 5. When cont r adi ct i on happens among f ol l owi ng specification, MLI T PBMGS A and JASS 5, Cont r act or shal l t ake pr ecedence over JASS 5 wi t h Cont r act i ng Of f i cer ' s appr oval .

Thi s sect i on shal l def i ne t he t ype and qual i t y of concr et e used f or r ei nf or ced concr et e bui l di ngs. Concr et e mat er i al s shal l be sel ect ed, pr opor t i oned, pr oduced and const r uct ed so t hat t he concr et e qual i t y speci f i ed i n t hi s sect i on can be at t ai ned.

1. 1 REFERENCES

The publ i cat i ons l i s t ed bel ow f or m a par t of t hi s speci f i cat i on t o t he ext ent r ef er enced. The publ i cat i ons ar e r ef er r ed t o wi t hi n t he t ext by t he basi c desi gnat i on onl y.

Gui de Speci f i cat i ons and Super vi s i on by Mi ni st r y of Land, I nf r ast r uct ur e and Tr anspor t ( MLI T)

MLI T OCM A Out l i ne of Ar chi t ect ur al Const r uct i on Management ( Kenchi ku Kouj i Sekou Kanr i Youkou)

MLI T PBMGS A Publ i c Bui l di ng Mast er Gui de Speci f i cat i ons f or Ar chi t ect ur al Wor k ( Kohkyou Kenchi ku Kouj i Hyouj yun Shi you- sho Kenchi ku Kouj i - hen)

JAPAN I NDUSTRI AL STANDARDS ( JI S)

JI S A- 1101 Sl ump f or Concr et e

JI S A- 1108 Compr essi ve St r engt h of Concr et e

JI S A- 1116 Met hod of Test f or Uni t Mass and Ai r Cont ent of Fr esh Concr et e by Mass Met hod

JI S A- 1123 Met hod of Test f or Bl eedi ng of Concr et e

JI S A- 1128 Ai r Cont ent of Fr esh Concr et e by Pr essur e Method

JI S A- 1156 Met hod of measur ement f or t emper at ur e of f r esh concr et e.

JI S A- 5005 Cr ushed St one and Manuf act ur ed Sand f or Concrete

JI S A- 5011- 1 Sl ag aggr egat e f or concr et e- Par t 1: bl ast f ur nace sl ag aggr egat e

SECTI ON 03 30 01 Page 1

JI S A- 5308 Ready- Mi xed Concr et e

JI S A- 6201 Fl y ash f or use i n concr et e

JI S A- 6202 Expansi ve addi t i ve f or concr et e

JI S A- 6204 Chemi cal Admi xt ur es f or Concr et e

JI S A- 6205 Cor r osi on i nhi bi t or f or r ei nf or c i ng st eel i n concr et e

JI S A- 6206 Gr ound gr anul at ed bl ast - f ur nace s l ag f or concrete

JI S A- 6207 Si l i ca f ume f or use i n concr et es

JI S G- 3350 Li ght Gauge Sect i ons f or Gener al St r uct ur e

JI S G- 3444 Car bon St eel Tubes f or Gener al St r uct ur al Purposes

JI S G- 3466 Car bon St eel Squar e and Rect angul ar Tubes f or Gener al St r uct ur e

JI S K- 6781 Pol yet hyl ene Fi l ms f or Agr i cul t ur e

JI S Q- 1011 Compat i bi l i t y cr i t er i a - Qual i f i cat i on Compat i bi l i t y wi t h Japanese I ndust r i al St andar ds - Qual i f i cat i on Gui de f or Cl assi f i ed Ar ea ( Ready- Mi xed Concr et e) )

JI S R- 5210 Por t l and Cement

JI S R- 5211 Por t l and Bl ast - Fur nace Sl ag Cement

JI S R- 5212 Por t l and Pozzol an Cement

JI S R- 5213 Por t l and Fl y- Ash Cement

JAPANESE ARCHI TECTURAL STANDARD SPECI FI CATI ON ( JASS)

JASS 5 Rei nf or ced Concr et e Wor k

JASS 5M- 401 Shr i nkage Reduci ng Agent

JASS 5T- 502 Cal cul at e Chl or i de amount i n Fr esh Concr et e by easy Exami nat i on

JASS 5T- 602 Met hod of Test f or Cont r ol of Pr opor t i oni ng St r engt h of Si t e- Mi xed Concrete

JASS 5T- 603 Compr essi ve St r engt h Test Met hod f or Est i mat i on of St r engt h of Concr et e i n Structure

JASS 5T- 604 Test Met hod f or Fl at ness of Fi ni shed Concrete

SECTI ON 03 30 01 Page 2

1. 2 SUBMITTALS

The f ol l owi ng shal l be submi t t ed t o t he Cont r act i ng Of f i cer f or appr oval .

SD- 01 Pr econst r uct i on Submi t t al s wor k pr ocedur e ( Concr et e)

Wor k pr ocedur e ( Koushubetsu Sekou Keikaku-sho) shal l i ncl ude names of a per son r esponsi bl e f or concr et e pl aci ng wor k, name of a per son r esponsi bl e f or i nspect i on, ski l l ed wor ker s ( Pumpi ng concr et e wor k) , name of concr et e pumpi ng wor k company, name of r eady- mi x concr et e suppl i er , name of chi ef concr et e engi neer of concr et e suppl i er , cer t i f i cat i on of JI S- accr edi t ed pl ant , speci f i cat i on/ cer t i f i cat i ons/ k i nds/ s i zes f or ( cement , non- shr i nkage mor t ar , aggr egat es, sand, admi xt ur e, wat er , wat er st ops at const r uct i on j oi nt s, et c) , concr et e mi x desi gn ( Haigou Keikaku sho) , wor k f l ow, execut i on met hod, met hods f or pumpi ng concr et e, cur i ng met hod, f i ni shi ng pl an, t est / i nspect i on pl an, qual i t y cont r ol pl ans, accept ance i nspect i on of r eady- mi x concr et e as del i ver ed, f or m r emoval schedul e, Count er measur e pl an i n case of t est / i nspect i on f ai l ur e, saf et y measur es f or concr et e pl aci ng, compact i on of concr et e, and envi r onment al measur es, and al l necessar y measur es t o execut e t he wor k.

wor k pr ocedur e( For mwor k)

Wor k pr ocedur e ( Koushubetsu Sekou Keikaku-sho) shal l i ncl ude l i s t s of ski l l ed wor ker s ( For mwor k) , pr oduct s of sheat hi ng, shor i ng f or m t i es, i nser t s, s l eeves, sheat hi ng r el ease agent , suppor t s f or openi ngs, et c ( cer t i f i cat i ons, k i nds, s i zes, di mensi on, mat er i al s) , qual i t y cont r ol pl ans, execut i on met hod, wor k f l ow, desi gn f or mwor k, t ol er ances, f or mwor k cal cul at i ons, st r uct ur al cal cul at i ons f or f or mwor k, r equi r ement s f or r emoval of f or mwor k, mi ni mum r et ent i on per i od f or sheat hi ng and suppor t s, t ypes of i nspect i ons/ t est s, saf et y measur es f or st r engt h of f or mwor k, t i ppi ng over / acci dent s, and envi r onment al measur es, and al l necessar y measur es t o execut e t he wor k.

SD- 02 Shop Dr awi ngs

Formwork

SD- 06 Test Repor t s

I nspect i on/ Test Repor t s

SD- 07 Cer t i f i cat es

Saf et y Dat a Sheet s

1. 3 MODI FI CATI ON OF REFERENCES

Accompl i sh wor k i n accor dance wi t h MLI T PBMGS A and JASS 5 publ i cat i ons except as modi f i ed her ei n. Consi der t he advi sor y or r ecommended pr ovi s i ons t o be mandat or y.

SECTI ON 03 30 01 Page 3

1. 4 DELI VERY, STORAGE, AND HANDLI NG

Fol l ow met hods f or pumpi ng concr et e, cur i ng met hod, f i ni shi ng pl an, r equi r ement s and r ecommendat i ons. Do not del i ver concr et e unt i l vapor r et ar der , vapor bar r i er , f or ms, r ei nf or cement , embedded i t ems, and chamf er st r i ps ar e i n pl ace and r eady f or concr et e pl acement . Do not st or e concr et e cur i ng compounds or seal er s wi t h mat er i al s t hat have a hi gh capaci t y t o adsor b vol at i l e or gani c compound ( VOC) emi ssi ons. Do not st or e concr et e cur i ng compounds or seal er s i n occupi ed spaces.

1. 5 QUALI TY ASSURANCE

The Cont r act or shal l devel op t he qual i t y cont r ol pl an, and execut e wor k i n accor dance wi t h MLI T PBMGS A, JASS 5 and MLI T OCM A. Submi t al l r equi r ed i nspect i on/ t est r epor t s ment i oned i n QUALI TY CONTROL FOR CONCRETE AND

FORMWORK.

Pr i or t o t he commencement of concr et e wor k, Cont r act or shal l devel op t he wor k pr ocedur e ( Concr et e) i ncl udi ng i nf or mat i on of JI S- accr edi t ed concr et e pl ant , or gani zat i on at const r uct i on s i t e, mat er i al ( cement , aggr egat es, admi xt ur es, sand, et c) cer t i f i cat i ons, concr et e mi x desi gn, execut i on met hod, wor k f l ow, met hods f or pumpi ng concr et e, cur i ng met hod, f i ni shi ng pl an, i nspect i on/ t est s pl ans, count er measur e when t est s/ i nspect i ons f ai l ur es, qual i t y cont r ol pl an, qual i t y cont r ol or gani zat i on, and ot her ot her necessar y i nf or mat i on and pl ans.

Pr i or t o t he commencement of f or mwor k, Cont r act or shal l conf i r m t he r equi r ement s of t he accur acy of member l ocat i ons and di mensi ons, gr adi ent and condi t i on of f i ni shed sur f aces, det er mi ne t he met hods of cont r ol l i ng and conf i r mi ng of such and pr epar e and submi t t he wor k pr ocedur e( For mwor k) , qual i t y cont r ol pl an and i nspect i on/ t est i ng pl an t hat c l ear l y descr i bes t he mat er i al s, met hods and const r uct i on of f or mwor k.

1. 5. 1 Desi gn Dat a

1. 5. 1. 1 For mwor k Cal cul at i ons

MLI T PBMGS A, JASS 5 and MLI T OCM A. I ncl ude desi gn cal cul at i ons i ndi cat i ng ar r angement of f or ms, s i zes and gr ades of suppor t s ( l umber ) , panel s, and r el at ed component s. Fur ni sh dr awi ngs and cal cul at i ons of shor i ng and r e- shor i ng met hods pr oposed f or f l oor and r oof s l abs, spandr el beams, and ot her hor i zont al concr et e member s. Cal cul at i ons must i ndi cat e concr et e pr essur e wi t h bot h l i ve and dead l oads, al ong wi t h mat er i al t ypes.

1. 5. 1. 2 Concr et e Mi x Desi gn

Si xt y days mi ni mum pr i or t o concr et e pl acement , submi t a mi x desi gn f or each st r engt h and t ype of concr et e. Submi t a compl et e l i s t of mat er i al s i ncl udi ng t ype; br and; sour ce and amount of cement , compl ement ar y cement i t i ous mat er i al s, and admi xt ur es; and appl i cabl e r ef er ence speci f i cat i ons. Submi t mi l l t est and al l ot her t est f or cement , compl ement ar y cement i t i ous mat er i al s, aggr egat es, and admi xt ur es. Pr ovi de document at i on of maxi mum nomi nal aggr egat e s i ze, gr adat i on anal ysi s, per cent age r et ai ned and passi ng s i eve, and a gr aph of per cent age r et ai ned ver ses s i eve s i ze. Pr ovi de mi x pr opor t i on dat a usi ng at l east t hr ee di f f er ent wat er - cement i t i ous mat er i al r at i os f or each t ype of mi xt ur e, whi ch pr oduce a r ange of st r engt h encompassi ng t hose r equi r ed f or each t ype of concr et e r equi r ed. I f sour ce mat er i al changes, r esubmi t mi x pr opor t i on dat a usi ng r evi sed sour ce mat er i al . Pr ovi de onl y mat er i al s t hat have been

SECTI ON 03 30 01 Page 4 pr oven by t r i al mi x st udi es t o meet t he r equi r ement s of t hi s speci f i cat i on, unl ess ot her wi se appr oved i n wr i t i ng by t he Cont r act i ng Of f i cer . I ndi cat e c l ear l y i n t he submi t t al wher e each mi x desi gn i s used when mor e t han one mi x desi gn i s submi t t ed. Resubmi t dat a on concr et e component s i f t he qual i t i es or sour ce of component s changes. For pr evi ousl y appr oved concr et e mi x desi gns used wi t hi n t he past t wel ve mont hs, t he pr evi ous mi x desi gn may be r e- submi t t ed wi t hout f ur t her t r i al bat ch t est i ng i f accompani ed by mat er i al t est dat a conduct ed wi t hi n t he l ast s i x mont hs.

Obt ai n mi x desi gn appr oval f r om t he cont r act i ng of f i cer pr i or t o concr et e placement.

1. 5. 2 Shop Dr awi ngs

1. 5. 2. 1 Formwork

Dr awi ngs showi ng det ai l s of f or mwor k i ncl udi ng, but not l i mi t ed t o; j oi nt s, suppor t s, st uddi ng and shor i ng, and sequence of f or m and shor i ng r emoval .

I ndi cat e pl acement schedul e, const r uct i on, l ocat i on and met hod of f or mi ng cont r ol j oi nt s. I ncl ude l ocat i ons of i nser t s, condui t , s l eeves and ot her embedded i t ems. Repr oduct i ons of cont r act dr awi ngs ar e unaccept abl e.

Submi t f or m r emoval schedul e i ndi cat i ng el ement and mi ni mum l engt h of t i me f or f or m r emoval .

Desi gn, f abr i cat e, er ect , suppor t , br ace, and mai nt ai n f or mwor k so t hat i t i s capabl e of suppor t i ng wi t hout f ai l ur e al l ver t i cal and l at er al l oads t hat may r easonabl y be ant i c i pat ed t o be appl i ed t o t he f or mwor k.

1. 5. 2. 2 Rei nf or c i ng St eel

Conf or m t o t he SECTI ON 03 20 00 CONCRETE REI NFORCI NG. I ndi cat e bendi ng di agr ams, assembl y di agr ams, spl i c i ng and l aps of bar s, shapes, di mensi ons, and det ai l s of bar r ei nf or c i ng, accessor i es, and concr et e cover . Do not scal e di mensi ons f r om st r uct ur al dr awi ngs t o det er mi ne l engt hs of r ei nf or c i ng bar s. Repr oduct i ons of cont r act dr awi ngs ar e unaccept abl e.

1. 5. 3 Cont r ol Submi t t al s

1. 5. 3. 1 Concr et e Cur i ng Pl an

Submi t pr oposed mat er i al s, met hods and dur at i on f or cur i ng concr et e el ement s i n accor dance wi t h MLI T PBMGS A, JASS 5 and MLI T OCM A.

1. 5. 3. 2 Pumpi ng Concr et e

Submi t pr oposed mat er i al s and met hods f or pumpi ng concr et e. Submi t t al must i ncl ude mi x desi gns, pumpi ng equi pment i ncl udi ng t ype of pump and s i ze and mat er i al f or pi pe, and maxi mum l engt h and hei ght concr et e i s t o be pumped.

1. 5. 3. 3 Fi ni shi ng Pl an

Submi t pr oposed mat er i al and pr ocedur es t o be used i n obt ai ni ng t he f i ni sh f or concr et e sur f aces. I ncl ude qual i f i cat i on of per son t o be used f or obt ai ni ng t ol er ance measur ement , descr i pt i on of measur i ng equi pment t o be used, and a sket ch showi ng l i nes and l ocat i ons t he measur i ng equi pment wi l l follow.

1. 5. 3. 4 Saf et y Dat a Sheet s

Submi t Saf et y Dat a Sheet s ( SDS) f or al l mat er i al s t hat ar e r egul at ed f or

SECTI ON 03 30 01 Page 5 hazar dous heal t h ef f ect s. SDS must be r eadi l y accessi bl e dur i ng each wor k shi f t t o empl oyees when t hey ar e at t he const r uct i on s i t e.

1. 5. 4 Qual i t y Cont r ol Pl an

Devel op and submi t f or appr oval a concr et e qual i t y cont r ol pr ogr am i n accor dance wi t h t he gui del i nes of MLI T OCM A and as speci f i ed her ei n.

Pr ovi de di r ect over si ght f or t he concr et e qual i f i cat i on pr ogr am i ncl usi ve of associ at ed sampl i ng and t est i ng. Al l qual i t y cont r ol r epor t s must be pr ovi ded t o t he Cont r act i ng Of f i cer , Qual i t y Manager and Concr et e Suppl i er . Mai nt ai n a copy of Qual i t y Cont r ol Pl an at pr oj ect s i t e.

1. 5. 5 Qual i t y Cont r ol Per sonnel Cer t i f i cat i ons

The Cont r act or must submi t f or appr oval t he r esponsi bi l i t i es of t he var i ous qual i t y cont r ol per sonnel , i ncl udi ng t he names and qual i f i cat i ons of t he i ndi v i dual s i n t hose posi t i ons and a qual i t y cont r ol or gani zat i onal char t def i ni ng t he qual i t y cont r ol hi er ar chy and t he r esponsi bi l i t y of t he var i ous posi t i ons.

Submi t cer t i f i cat i on f or t he f ol l owi ng:

a. A l ead per sonnel r esponsi bl e f or concr et e pl aci ng oper at i ons ( Dasetsu Sekinin sha).

b. A per sonnel r esponsi bl e f or pumpi ng concr et e

c. A l ead per sonnel r esponsi bl e f or t est s/ i nspect i ons ( Kensa Sekinin sha)

d. A chi ef concr et e engi neer of concr et e suppl i er ( Sekou kanri gijyutsu sha (Concrete Shunin gishi)).

1. 5. 5. 1 Qual i t y Manager Qual i f i cat i ons

The qual i t y manager must hol d a cur r ent l i cense as a 1st Cl ass Cer t i f i ed Const r uct i on Engi neer wi t h exper i ence on at l east f i ve ( 5) s i mi l ar pr oj ect s. Evi dence of ext r aor di nar y pr oven exper i ence may be consi der ed by t he Cont r act i ng Of f i cer as suf f i c i ent t o act as t he Qual i t y Manager .

1. 6 ENVI RONMENTAL REQUI REMENTS

The l umber s f or f or mboar d shal l be avoi ded t o exposur e t o t he di r ect sunl i ght as much as possi bl e dur i ng sawi ng and dr y i ng. The l umber shal l be cover ed by sheet or s i mi l ar mat er i al s t o pr event def ect s on concr et e f i ni sh surfaces.

1. 7 TYPE AND QUALI TY OF CONCRETE

1. 7. 1 Types of Concr et e

a. The t ypes of r eady mi x concr et e ar e shown i n TABLE I , whi l e i t s appl i cat i on shal l conf or m t o t he speci al pr ovi s i ons. I f t her e i s no speci al pr ovi s i ons gi ven, Type I i n TABLE I shal l be used.

TABLE I : Types of Ready Mi xed Concr et e

SECTI ON 03 30 01 Page 6

Type Manuf act ur i ng Cl assi f i cat i on

I Concr et e manuf act ur ed i n JI S cer t i f i ed f act or i es i n accor dance wi t h JI S A- 5308 ( Ready Mi xed Concr et e) , c l assi f i ed as or di nar y concr et e or l i ght wei ght concrete.

II Concr et e manuf act ur ed i n f act or i es ot her t han Type I f act or i es

1. 7. 2 Uni t Mass i n Ai r - Dr y Condi t i on

a. The densi t y i n an ai r - dr y condi t i on of nor mal wei ght concr et e shal l be bet ween 2. 1 and 2. 5 t / m3 as st andar d.

b. The densi t y i n an ai r - dr y condi t i on of nor mal wei ght concr et e shal l be bet ween 2. 1 t / m3, and i n accor dance wi t h t he speci al pr ovi s i on. and 2. 5 t/m3.

1. 7. 3 Wor kabi l i t y and Sl ump

a. The wor kabi l i t y of concr et e shal l be such t hat t he concr et e can be pl aced densel y i n al l cor ner s of f or ms and ar ound r ei nf or c i ng bar s wi t h mi ni mum bl eedi ng and segr egat i on under t he condi t i ons of por t i ons t o be pl aced and met hods of deposi t i on and compact i on t o be empl oyed.

b. The sl ump of concr et e shal l conf or m t o TABLE I I . However , t he s l ump of l i ght wei ght concr et e shal l be i n accor dance wi t h JASS 5.

TABLE I I : Sl ump Val ue ( Uni t : cm) Pl ace of Cast i ng Foundat i on, Foundat i on Beam, Foundat i on Sl ab Col umn, Beam, Sl ab, Wal l

Slump 15, 18 18

Sl ump of l evel i ng concr et e ( Sute concrete) and concr et e s l ab on gr ade ( Doma concrete) shal l be 18 mm.

1. 7. 4 Dur abi l i t y Desi gn St r engt h

The dur abi l i t y desi gn st r engt h of concr et e shal l be as speci f i ed i n t he speci al pr ovi s i ons accor di ng t o t he pl anned ser vi ce l i f e c l ass of t he st r uct ur e or member s. Unl ess speci f i ed i n t he speci al pr ovi s i ons, i t shal l be i n accor dance wi t h TABLE I I I bel ow.

TABLE I I I : Dur abi l i t y , Desi gn St r engt h of Concr et e Pl anned Ser vi ce l i f e c l ass Dur abi l i t y desi gn st r engt h ( N/ mm2)

Standard 24

1. 7. 5 Qual i t y St andar d St r engt h of Concr et e ( Fq)

The Qual i t y St andar d St r engt h of Concr et e ( Fq) shal l conf or m t o t he speci al pr ovi s i ons. Unl ess speci f i ed i n t he speci al pr ovi s i ons, t he Fq shal l conf or m t o t he TABLE I V bel ow.

SECTI ON 03 30 01 Page 7

TABLE I V: Qual i t y St andar d St r engt h of Concr et e ( Fq) Appl i cat i on Por t i on Qual i t y St andar d St r engt h of

Concr et e ( Fq) ( N/ mm2)

Level i ng concr et e ( Sute concrete) 18

Concr et e s l ab on gr ade ( Doma concrete) 21

Foundat i on, Foundat i on Beam, Foundat i on Sl ab, Col umn, Beam, Sl ab, Fl oor , Wal l

PART 2 PRODUCTS

2. 1 CONCRETE MATERI ALS

2. 1. 1 Cement

a. Cement shal l conf or m t o TABLE V and i t s t ype shal l conf or m t o t he Speci al Speci f i cat i ons.