TE 12- Division 32 - Exterior Improvements.pdf

SECTI ON 32 01 19. 61

SEALI NG OF JOI NTS I N RI GI D PAVEMENT

11/19

PART 1 GENERAL

1. 1 UNI T PRI CES

1. 1. 1 Measurement

Det er mi ne t he quant i t y of each seal i ng i t em t o be pai d f or by act ual measur ement of t he number of l i near f t of i n- pl ace mat er i al t hat has been approved.

1. 1. 2 Payment

Make payment at t he Cont r act uni t bi d pr i ces per l i near f oot f or t he seal i ng i t ems schedul ed. I ncl ude t he cost of l abor , mat er i al s, and t he use of equi pment and t ool s r equi r ed t o compl et e t he wor k i n t he uni t bi d pr i ce.

1. 2 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.

ASTM I NTERNATI ONAL ( ASTM)

ASTM C603 ( 2014; R 2019) St andar d Test Met hod f or Ext r usi on Rat e and Appl i cat i on Li f e of El ast omer i c Seal ant s

ASTM C639 ( 2001; R 2011) Rheol ogi cal ( Fl ow) Pr oper t i es of El ast omer i c Seal ant s

ASTM C661 ( 2015) I ndent at i on Har dness of El ast omer i c- Type Seal ant s by Means of a Durometer

ASTM C679 ( 2003; E 2009; R 2009) Tack- Fr ee Ti me of El ast omer i c Seal ant s

ASTM C719 ( 2014; R 2019) St andar d Test Met hod f or Adhesi on and Cohesi on of El ast omer i c Joi nt Seal ant s Under Cycl i c Movement ( Hockman Cycle)

ASTM C792 ( 2004; R 2008) Ef f ect s of Heat Agi ng on Wei ght Loss, Cr acki ng, and Chal k i ng of El ast omer i c Seal ant s

ASTM C793 ( 2005; R 2017) St andar d Test Met hod f or Ef f ect s of Labor at or y Accel er at ed Weat her i ng on El ast omer i c Joi nt Seal ant s

ASTM C920 ( 2018) St andar d Speci f i cat i on f or El ast omer i c Joi nt Seal ant s

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ASTM C1016 ( 2014) St andar d Test Met hod f or Det er mi nat i on of Wat er Absor pt i on of Seal ant Backi ng ( Joi nt Fi l l er ) Mat er i al

ASTM C1193 ( 2013) St andar d Gui de f or Use of Joi nt Sealants

ASTM D412 ( 2016) St andar d Test Met hods f or Vul cani zed Rubber and Ther mopl ast i c El ast omer s - Tensi on

ASTM D789 ( 2015) Det er mi nat i on of Rel at i ve Vi scosi t y and Moi st ur e Cont ent of Pol yami de ( PA)

ASTM D903 ( 1998; R 2017) St andar d Test Met hod f or Peel or St r i ppi ng St r engt h of Adhesi ve Bonds

ASTM D5249 ( 2010; R 2016) St andar d Speci f i cat i on f or Backer Mat er i al f or Use wi t h Col d- and Hot - Appl i ed Joi nt Seal ant s i n Por t l and- Cement Concr et e and Asphal t Joi nt s

ASTM D5329 ( 2016) St andar d Test Met hods f or Seal ant s and Fi l l er s, Hot - Appl i ed, f or Joi nt s and Cr acks i n Asphal t Pavement s and Por t l and Cement Concr et e Pavement s

ASTM D5893/ D5893M ( 2016) St andar d Speci f i cat i on f or Col d Appl i ed, Si ngl e Component , Chemi cal l y Cur i ng Si l i cone Joi nt Seal ant f or Por t l and Cement Concr et e Pavement s

ASTM D6690 ( 2015) St andar d Speci f i cat i on f or Joi nt and Cr ack Seal ant s, Hot Appl i ed, f or Concr et e and Asphal t Pavement s

U. S. ARMY CORPS OF ENGI NEERS ( USACE)

COE CRD- C 525 ( 1989) Cor ps of Engi neer s Test Met hod f or Eval uat i on of Hot - Appl i ed Joi nt Seal ant s f or Bubbl i ng Due t o Heat i ng

1. 3 SUBMITTALS

Gover nment appr oval i s r equi r ed f or submi t t al s wi t h a " G" desi gnat i on;

submi t t al s not havi ng a " G" desi gnat i on ar e f or i nf or mat i on onl y. When used, a desi gnat i on f ol l owi ng t he " G" desi gnat i on i dent i f i es t he of f i ce t hat wi l l r evi ew t he submi t t al f or t he Gover nment . Submi t t al s wi t h an " S" ar e f or i ncl usi on i n t he Sust ai nabi l i t y eNot ebook, i n conf or mance t o Sect i on 01 33 29 SUSTAI NABI LI TY REPORTI NG. Submi t t he f ol l owi ng i n accor dance wi t h Sect i on 01 33 00 SUBMI TTAL PROCEDURES:

SD- 03 Pr oduct Dat a

Sealants

Submi t cat al og cut s, speci f i cat i ons, Saf et y Dat a Sheet s and

SECTI ON 32 01 19. 61 Page 2 ot her i nf or mat i on document i ng conf or mance t o Cont r act r equi r ement s.

Manuf act ur er ' s Recommendat i ons

SD- 04 Sampl es

Sealants

Pr ovi de f or t est i ng a 5- gal sampl e of each seal ant wi t h associ at ed pr i mer t o t he Cont r act i ng Of f i cer a mi ni mum of 60 days pr i or t o i t s use on t he j ob. Pr ovi de f act or y- seal ed cont ai ner s wi t h a f act or y appl i ed l abel showi ng t he f ol l owi ng i nf or mat i on:

Name of seal ant

I dent i f i cat i on of component , or pr i mer

Speci f i cat i on number and t ype

Manuf act ur er ' s name

Manuf act ur er ' s l ot and bat ch number

Dat e of Manuf act ur e ( mont h and year )

Shel f l i f e r et est dat e ( mont h and year )

Li st of hazar dous component s

Quant i t y of mat er i al i n cont ai ner ( vol ume)

St or age i nst r uct i ons

I nst r uct i ons f or use

Bl ocki ng Medi a/ Backup Mat er i al s

Backer Rod

Bond Br eaki ng Tapes

SD- 06 Test Repor t s

Sealants

SD- 07 Cer t i f i cat es

Equi pment Li st

SD- 08 Manuf act ur er ' s I nst r uct i ons

Sealants

Pr ovi de i nst r uct i ons t hat i ncl ude, but not l i mi t ed t o: st or age r equi r ement s, ambi ent t emper at ur e and humi di t y r anges, and moi st ur e condi t i on of j oi nt s f or successf ul i nst al l at i on;

r equi r ement s f or pr epar at i on of j oi nt s; saf e heat i ng t emper at ur e;

mi x i ng i nst r uct i ons; i nst al l at i on equi pment and pr ocedur es;

appl i cat i on and di sposal r equi r ement s; compat i bi l i t y of seal ant

SECTI ON 32 01 19. 61 Page 3 wi t h f i l l er mat er i al ; cur i ng r equi r ement s; and r est r i c t i ons t o be adher ed t o i n or der t o r educe hazar ds t o per sonnel or t o t he envi r onment . Submi t i nst r uct i ons at l east 30 days pr i or t o use.

1. 4 QUALI TY ASSURANCE

1. 4. 1 Test Requi r ement s

Test t he seal ant and backup or separ at i ng mat er i al f or conf or mance wi t h t he r ef er enced mat er i al speci f i cat i on. Per f or m t est i ng of t he mat er i al s i n an appr oved i ndependent l abor at or y and submi t cer t i f i ed copi es of t he t est r epor t s f or appr oval 30 days pr i or t o t he use of t he mat er i al s at t he j ob s i t e. Submi t sampl es t o be r et ai ned by t he Gover nment f or possi bl e f ut ur e t est i ng i f t he mat er i al s appear def ect i ve dur i ng or af t er appl i cat i on.

Conf or mance wi t h t he r equi r ement s of t he l abor at or y t est s speci f i ed does not const i t ut e f i nal accept ance of t he mat er i al s. Base f i nal accept ance on t he per f or mance of t he i n- pl ace mat er i al s. Submi t sampl es of t he mat er i al s ( seal ant , pr i mer i f r equi r ed, and backup mat er i al ) , i n suf f i c i ent quant i t y f or t est i ng and appr oval 30 days pr i or t o t he begi nni ng of wor k. Do not use mat er i al unt i l i t has been appr oved.

1. 4. 2 Tr i al Joi nt Seal ant I nst al l at i on

Pr i or t o c l eani ng and seal i ng t he j oi nt s f or t he ent i r e pr oj ect , pr epar e a t est sect i on at l east 200 f t l ong usi ng t he speci f i ed mat er i al s and appr oved equi pment , so as t o demonst r at e t he pr oposed j oi nt pr epar at i on and seal i ng of t he t ypes of j oi nt s i n t he pr oj ect . Fol l owi ng t he compl et i on of t he t est sect i on and bef or e any ot her j oi nt i s seal ed, i nspect t he t est sect i on t o det er mi ne t hat t he mat er i al s and i nst al l at i on meet t he r equi r ement s speci f i ed. I nspect j oi nt seal t est sect i on. Pr ovi de wr i t t en not i ce of def i c i enci es and r equi r ed cor r ect i ons or adj ust ment s i n t he j oi nt seal i nst al l at i on pr ocedur es. Cor r ect def i c i enci es and obt ai n appr oval of t est sect i on pr i or t o i nst al l i ng j oi nt seal s. I f i t i s det er mi ned t hat t he mat er i al s or i nst al l at i on do not meet t he r equi r ement s, r emove t he mat er i al s, and r ecl ean and r eseal t he j oi nt s at no cost t o t he Gover nment .

Per mi t t he t est sect i on meet i ng t he r equi r ement s t o be i ncor por at ed i nt o t he per manent wor k and pai d f or at t he Cont r act uni t pr i ce per l i near f oot f or seal i ng i t ems schedul ed. Pr epar e and seal ot her j oi nt s i n t he manner appr oved f or seal i ng t he t est sect i on. Not i f y t he Cont r act i ng Of f i cer upon compl et i on of t he t est sect i on.

1. 5 DELI VERY, STORAGE, AND HANDLI NG

I nspect mat er i al s del i ver ed t o t he s i t e f or v i s i bl e damage, and unl oad and st or e wi t h a mi ni mum of handl i ng. Del i ver j oi nt mat er i al s i n or i gi nal seal ed cont ai ner s and pr ot ect f r om f r eezi ng or over heat i ng. Pr ovi de j obsi t e st or age f aci l i t i es capabl e of mai nt ai ni ng t emper at ur e r anges wi t hi n manuf act ur er s r ecommendat i ons.

1. 6 ENVI RONMENTAL REQUI REMENTS

Do not pr oceed wi t h wor k when weat her condi t i ons det r i ment al l y af f ect t he qual i t y of c l eani ng j oi nt s or appl y i ng seal ant s. Pr oceed wi t h j oi nt pr epar at i on and seal i ng onl y when weat her condi t i ons ar e i n accor dance wi t h manuf act ur er ' s i nst r uct i ons. I nst al l j oi nt seal ant t o dr y sur f aces and pr ot ect seal ant and bond br eaker s f r om moi st ur e.

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1. 7 TRAFFI C CONTROL

Do not per mi t vehi cul ar or heavy equi pment t r af f i c on t he pavement i n t he ar ea of t he j oi nt s bei ng seal ed dur i ng t he pr ot ect i on and cur i ng per i od of t he seal ant . Per mi t t r af f i c on t he pavement at t he end of t he cur i ng period.

PART 2 PRODUCTS

2. 1 SEALANTS

Use mat er i al s f or seal i ng cr acks i n accor dance wi t h ASTM D6690 and ASTM D5893/ D5893M based on t he t ype of ar ea as f ol l ows:

Area Seal i ng Mat er i al

Ar eas t hat wi l l not r ecei ve f uel spi l l age, engi ne bl ast , or heat , such as r oadways, par ki ng ar eas, cur b, and gut t er

ASTM D6690, Type I I and ASTM D5329/

COE CRD- C 525

Ar eas t hat wi l l not r ecei ve f uel spi l l age, engi ne bl ast , or heat , such as r oadways, par ki ng ar eas, cur b, and gut t er

ASTM D6690, Type I I I and ASTM D5329/

COE CRD- C 525

Ar eas t hat wi l l not r ecei ve f uel spi l l age, engi ne bl ast , or heat , such as r oadways, par ki ng ar eas, cur b, and gut t er

ASTM D5893/ D5893M

Use sel f l evel i ng, non- aci d cur i ng s i l i cone seal ant meet i ng t he f ol l owi ng r equi r ement s i n accor dance wi t h ASTM C920 or ASTM C1193:

TEST TEST METHOD REQUIREMENTS

Wei ght Loss ASTM C792 Modi f i ed ( see Not e 1 bel ow)

10 per cent max.

Flow ASTM C639 ( Type I ) Smoot h and l evel

Ext r usi on Rat e ASTM C603 30 sec. max.

Tack Fr ee Ti me ASTM C679 5 hour s max.

Har dness ( Shor e 00) ( see Not e 2 bel ow)

ASTM C661 30 - 80

Tensi l e St r ess at 150 Per cent El ongat i on ( see Not e 2 bel ow)

ASTM D412 ( Di e C) 30 psi max.

Per cent El ongat i on ( see Not e 2 bel ow)

ASTM D412 ( Di e C) 700 mi n.

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TEST TEST METHOD REQUIREMENTS

Accel er at ed Weat her i ng ASTM C793 Pass 5000 hour s

Bond and Movement Capabi l i t y ASTM C719 Pass 10 cycl es at pl us 50 per cent movement ( no adhesi on or cohesi on f ai l ur e)

Peel ASTM D903 Mi ni mum 20 psi of wi dt h wi t h at l east 75 per cent cohesi ve failure

NOTES:

1. Per cent wei ght l oss of wet ( uncur ed) sampl e af t er pl aci ng i n f or ced- dr af t oven mai nt ai ned at 158 degr ees pl us 1 degr ee F f or t wo hour s.

2. Speci men cur ed 21 days at 73 degr ees pl us 1 degr ee F and 50 per cent pl us 5 per cent humidity.

ACCELERATED WEATHERI NG FACTORY TEST REPORT. For t he Accel er at ed Weat her i ng t est , i n l i eu of t est i ng of act ual seal ant t o be used on t he pr oj ect , i t i s per mi t t ed t o submi t a r epor t of a f act or y t est , per f or med wi t hi n t wo year s of Cont r act awar d.

2. 2 PRIMERS

Use pr i mer s i n accor dance wi t h t he r ecommendat i on of t he manuf act ur er .

2. 3 BOND BREAKERS

2. 3. 1 Bl ocki ng Medi a/ Backup Mat er i al s

Pr ovi de backup ( j oi nt f i l l er ) mat er i al t hat i s a compr essi bl e, nonshr i nki ng, nonst ai ni ng, nonabsor bi ng, nonr eact i ve mat er i al wi t h t he seal ant . Use backup mat er i al compl i ant wi t h ASTM D5249. Use mat er i al wi t h a mel t i ng poi nt at l east 5 degr ees F gr eat er t han t he pour i ng t emper at ur e of t he seal ant bei ng used when t est ed i n accor dance wi t h ASTM D789. Use mat er i al wi t h a wat er absor pt i on of not mor e t han 5 per cent of t he sampl e wei ght when t est ed i n accor dance wi t h ASTM C1016. Use backup ( j oi nt f i l l er ) mat er i al t hat i s 25 pl us or mi nus 5 per cent l ar ger i n di amet er t han t he nomi nal wi dt h of t he cr ack. Use bl ocki ng medi a consi st ent wi t h t he seal ant manuf act ur er ' s i nst al l at i on i nst r uct i ons.

2. 3. 2 Bond Br eaki ng Tapes

Pr ovi de a bond br eaki ng t ape or separ at i ng mat er i al t hat i s a f l exi bl e, nonshr i nkabl e, nonabsor bi ng, nonst ai ni ng, and nonr eact i ng adhesi ve- backed t ape. Use mat er i al wi t h a mel t i ng poi nt at l east 5 degr ees F gr eat er t han t he pour i ng t emper at ur e of t he seal ant bei ng used when t est ed i n accor dance with ASTM D789. Use bond br eaker t ape appr oxi mat el y 1/ 8 i n wi der t han t he nomi nal wi dt h of t he j oi nt and t hat does not bond t o t he seal ant . Use bond br eaki ng t ape shal l be consi st ent wi t h t he seal ant manuf act ur er ' s i nst al l at i on i nst r uct i ons.

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PART 3 EXECUTI ON

3. 1 EXECUTI NG EQUI PMENT

Submi t equi pment l i s t and descr i pt i on of t he equi pment t o be used and a st at ement f r om t he suppl i er of t he seal ant t hat t he pr oposed equi pment i s accept abl e f or i nst al l i ng t he speci f i ed seal ant . Use equi pment f or heat i ng, mi xi ng, and i nst al l i ng seal s i n accor dance wi t h t he i nst r uct i ons pr ovi ded by t he seal ant manuf act ur er . Pr ovi de equi pment , t ool s, and accessor i es necessar y t o c l ean exi st i ng j oi nt s and i nst al l l i qui d j oi nt seal ant s. Mai nt ai n machi nes, t ool s, and ot her equi pment i n pr oper wor ki ng condi t i on. Submi t a l i s t of pr oposed equi pment t o be used i n per f or mance of const r uct i on wor k i ncl udi ng descr i pt i ve dat a, 30 days pr i or t o use on t he project.

3. 1. 1 Joi nt Cl eani ng Equi pment

3. 1. 1. 1 Tr act or - Mount ed Rout i ng and Pl owi ng Tool

Use r out i ng t ool s f or r emovi ng ol d seal ant f r om t he j oi nt s, of such shape and di mensi ons and so mount ed on t he t r act or t hat do not damage t he s i des of t he j oi nt s. Use t ool s desi gned t o be adj ust ed t o r emove t he ol d mat er i al t o var y i ng dept hs and wi dt hs as r equi r ed. Use equi pment capabl e of mai nt ai ni ng accur at e cut t i ng dept h and wi dt h cont r ol . Use a j oi nt pl ow equi pped wi t h a spr i ng or hydr aul i c mechani sm t o r el ease pr essur e on t he t ool pr i or t o spal l i ng t he concr et e. Do not per mi t t he use of V- shaped t ool s or r ot ar y i mpact r out i ng devi ces. Per mi t t he use of hand- oper at ed spi ndl e r out i ng devi ces t o c l ean and enl ar ge r andom cr acks.

3. 1. 1. 2 Concr et e Saw

Pr ovi de a sel f - pr opel l ed power saw, wi t h wat er - cool ed di amond or abr asi ve saw bl ades, f or cut t i ng j oi nt s t o t he dept hs and wi dt hs speci f i ed, f or r ef aci ng j oi nt s, c l eani ng sawed j oi nt s wher e sandbl ast i ng does not pr ovi de a c l ean j oi nt , wi deni ng, or deepeni ng exi st i ng j oi nt s as speci f i ed wi t hout damagi ng t he s i des, bot t om, or t op edge of j oi nt s. Per mi t s i ngl e or gang t ype bl ades wi t h one or mor e bl ades mount ed i n t andem f or f ast cut t i ng.

Sel ect saw adequat el y power ed and si zed t o cut speci f i ed openi ng wi t h not mor e t han t wo passes of t he saw t hr ough t he j oi nt .

3. 1. 1. 3 Sandbl ast i ng Equi pment

I ncl ude wi t h t he sandbl ast i ng equi pment an ai r compr essor , hose, and l ong- wear i ng vent ur i - t ype nozzl e of pr oper s i ze, shape and openi ng. Do not per mi t t he maxi mum nozzl e openi ng t o exceed 1/ 4 i n. Use a por t abl e ai r compr essor capabl e of pr ovi di ng not l ess t han 150 cf m and mai nt ai ni ng a l i ne pr essur e of not l ess t han 90 psi at t he nozzl e whi l e i n use.

Demonst r at e compr essor capabi l i t y , under j ob condi t i ons, bef or e appr oval .

Use a compr essor equi pped wi t h t r aps t hat mai nt ai n t he compr essed ai r f r ee of oi l and wat er . Use a nozzl e wi t h an adj ust abl e gui de t hat hol ds t he nozzl e al i gned wi t h t he j oi nt appr oxi mat el y 1 i n above t he pavement sur f ace. Adj ust t he hei ght , angl e of i ncl i nat i on and t he s i ze of t he nozzl e t o secur e sat i sf act or y r esul t s.

3. 1. 1. 4 Wat er bl ast i ng Equi pment

I ncl ude wi t h t he wat er bl ast i ng equi pment a t r ai l er - mount ed wat er t ank, pumps, hi gh- pr essur e hose, wand wi t h saf et y r el ease cut of f cont r ol , nozzl e, and auxi l i ar y wat er r esuppl y equi pment . Pr ovi de wat er t ank and auxi l i ar y r esuppl y equi pment of suf f i c i ent capaci t y t o per mi t cont i nuous oper at i ons.

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Use a nozzl e wi t h an adj ust abl e gui de t hat hol ds t he nozzl e al i gned wi t h t he j oi nt appr oxi mat el y 1 i n above t he pavement sur f ace. Adj ust t he hei ght , angl e of i ncl i nat i on and t he s i ze of t he nozzl e t o obt ai n sat i sf act or y r esul t s. Use a pr essur e gauge mount ed at t he pump t hat shows t he pr essur e i n psi at whi ch t he equi pment i s oper at i ng.

3. 1. 1. 5 Ai r Compr essor

Use a por t abl e ai r compr essor capabl e of oper at i ng t he sandbl ast i ng equi pment and capabl e of bl owi ng out sand, wat er , dust adher i ng t o s i dewal l s of concr et e, and ot her obj ect i onabl e mat er i al s f r om t he j oi nt s.

Use a compr essor t hat pr ovi des ai r at a pr essur e not l ess t han 90 psi and a mi ni mum r at e of 150 cubi c f t of ai r per mi nut e at t he nozzl es and f r ee of oil.

3. 1. 1. 6 Vacuum Sweeper

Use a sel f - pr opel l ed, vacuum pi ckup sweeper capabl e of compl et el y r emovi ng l oose sand, wat er , j oi nt mat er i al , and debr i s f r om pavement sur f ace.

3. 1. 1. 7 Hand Tool s

Per mi t t he use of hand t ool s, such as br ooms and chi sel s, when appr oved, f or r emovi ng def ect i ve seal ant f r om a cr ack and r epai r i ng or c l eani ng t he cr ack f aces.

3. 1. 2 Seal i ng Equi pment

Use j oi nt seal i ng equi pment of a t ype r equi r ed by t he seal ant manuf act ur er ' s i nst al l at i on i nst r uct i ons. Use equi pment capabl e of i nst al l i ng seal ant t o t he dept hs, wi dt hs and t ol er ances i ndi cat ed. Do not pr oceed wi t h j oi nt seal i ng when mal f unct i ons ar e not ed unt i l t he mal f unct i ons ar e cor r ect ed.

3. 1. 2. 1 Hot - Pour ed Seal i ng Equi pment

Use mobi l e uni t appl i cat or s equi pped wi t h a doubl e- boi l er , agi t at or - t ype ket t l e wi t h an oi l medi um i n t he out er space f or heat t r ansf er f or heat i ng and i nst al l i ng ASTM D6690 j oi nt seal ant mat er i al s; a di r ect - connect ed pr essur e- t ype ext r udi ng devi ce wi t h a nozzl e shaped f or i nser t i ng i n t he j oi nt t o be f i l l ed; posi t i ve t emper at ur e devi ces f or cont r ol l i ng t he t emper at ur e of t he t r ansf er oi l and seal ant ; and a r ecor di ng t her momet er f or i ndi cat i ng t he t emper at ur e of t he seal ant . Use an appl i cat or uni t desi gned so t hat t he seal ant c i r cul at es t hr ough t he del i ver y hose and r et ur ns t o t he i nner ket t l e when not i n use.

3. 1. 2. 2 Col d- Appl i ed, Si ngl e- Component Seal i ng Equi pment

Use equi pment f or i nst al l i ng ASTM D5893/ D5893M si ngl e component j oi nt seal ant s t hat consi st s of an ext r usi on pump, ai r compr essor , f ol l owi ng pl at e, hoses, and nozzl e f or t r ansf er r i ng t he seal ant f r om t he st or age cont ai ner i nt o t he j oi nt openi ng. Use a nozzl e wi t h di mensi ons t hat al l ows t he t i p of t he nozzl e t o ext end i nt o t he j oi nt t o al l ow seal i ng f r om t he bot t om of t he j oi nt t o t he t op. Mai nt ai n t he i ni t i al l y appr oved equi pment i n good wor ki ng condi t i on, ser vi ced i n accor dance wi t h t he suppl i er ' s i nst r uct i ons, and unal t er ed i n any way wi t hout obt ai ni ng pr i or appr oval .

Use l i ned hoses and seal s t o pr event moi st ur e penet r at i on and wi t hst and pumpi ng pr essur es. Use equi pment f r ee of cont ami nat i on f r om pr evi ousl y used or ot her t ype seal ant . Per mi t use of smal l hand- hel d ai r - power ed equi pment

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( i . e. , caul k i ng guns) f or smal l appl i cat i ons.

3. 2 SAFETY

Do not pl ace seal ant wi t hi n 25 f t of LOX equi pment , LOX st or age, or LOX pi pi ng. Cl ean j oi nt s i n t hi s ar ea and l eave t hem unseal ed.

I n accor dance wi t h t he pr ovi s i ons of t he Cont r act r espect i ng " Acci dent Pr event i on, " t ake appr opr i at e measur es t o cont r ol wor ker exposur e t o t oxi c subst ances dur i ng t he wor k. Pr ovi de per sonnel pr ot ect i ve equi pment as r equi r ed. Make Mat er i al Saf et y Dat a Sheet s ( Depar t ment of Labor For m OSHA- 20 or compar abl e f or m) avai l abl e on t he s i t e.

Per f or m sandbl ast i ng oper at i ons i n accor dance t o par agr aph ent i t l ed " Abr asi ve Bl ast i ng" of Sect i on 01 57 19 TEMPORARY ENVI RONMENTAL CONTROLS.

3. 3 PREPARATI ON OF JOI NTS

Unl ess ot her wi se i ndi cat ed, r emove exi st i ng mat er i al , saw, c l ean and r eseal j oi nt s. Do not pr oceed wi t h f i nal c l eani ng oper at i ons by mor e t han one wor ki ng day i n advance of seal ant . Cl ean j oi nt s by r emovi ng exi st i ng j oi nt seal i ng compound, bond- br eaker s, di r t , l ai t ance, cur i ng compound, f i l l er , and pr ot r usi ons of har dened concr et e f r om t he s i des and upper edges of t he j oi nt space t o be seal ed and ot her f or ei gn mat er i al wi t h t he equi pment . Do not per mi t c l eani ng pr ocedur es t hat damage j oi nt s or pr evi ousl y r epai r ed pat ches by chi ppi ng or spal l i ng. Remove exi st i ng seal ant t o t he r equi r ed dept h. Pr eci se shape and si ze of exi st i ng j oi nt s var y, and condi t i ons of j oi nt wal l s and edges var y and i ncl ude but ar e not l i mi t ed t o r oundi ng, squar e edges, s l opi ng, chi ps, voi ds, depr essi ons, and pr oj ect i ons.

3. 3. 1 Exi st i ng Seal ant Removal

Cut l oose t he i n- pl ace seal ant f r om bot h j oi nt f aces and t o t he r equi r ed dept h, usi ng t he t r act or - mount ed r out i ng equi pment , concr et e saw, or wat er bl ast er as speci f i ed i n par agr aph EQUI PMENT. The concr et e saw shal l not be used i f i t wi l l wi den t he j oi nt t o a wi dt h gr eat er t han 1 i nch.

Pr ovi de a dept h suf f i c i ent t o accommodat e bl ocki ng medi a and bond br eaker s t hat ar e r equi r ed t o mai nt ai n t he dept h of new seal ant t o be i nst al l ed.

For expansi on j oi nt s, r emove exi st i ng seal ant t o a dept h of not l ess t han t he i ndi cat ed dept h or 1 i n, whi chever i s deeper . When exi st i ng pr ef or med expansi on- j oi nt mat er i al i s mor e t han 1 i n bel ow t he sur f ace of t he pavement , r emove exi st i ng seal ant t o t he t op of t he pr ef or med j oi nt f i l l er . Pr i or t o f ur t her c l eani ng oper at i ons, r emove l oose ol d seal ant r emai ni ng i n t he j oi nt openi ng by bl owi ng wi t h compr essed ai r . Per mi t use of hand t ool s t o r emove seal ant f r om r andom cr acks. Do not per mi t chi ppi ng, spal l i ng, or ot her damage t o t he concr et e. Cl ean pavement sur f ace wi t h vacuum sweeper . Pr ot ect pr evi ousl y c l eaned j oi nt s f r om bei ng cont ami nat ed by subsequent c l eani ng oper at i ons.

3. 3. 2 Sawing

3. 3. 2. 1 Faci ng and Ref aci ng of Joi nt s

Accompl i sh f aci ng and r ef aci ng of j oi nt s usi ng a concr et e saw as speci f i ed i n par agr aph EQUI PMENT t o r emove r esi dual ol d seal ant and a mi ni mum of concr et e f r om t he j oi nt f ace t o pr ovi de exposur e of newl y c l eaned concr et e, and, i f r equi r ed, t o enl ar ge t he j oi nt openi ng t o t he wi dt h and dept h shown on t he dr awi ngs, or t o saw t hr ough sawed and f i l l er - t ype j oi nt s t o l oosen and r emove mat er i al unt i l t he j oi nt i s c l ean and open t o t he f ul l speci f i ed wi dt h and dept h. Pr ovi de exposur e of newl y c l ean concr et e t hr ough

SECTI ON 32 01 19. 61 Page 9 r emoval . Remove bur r s and i r r egul ar i t i es f r om si des of j oi nt f aces.

St i f f en t he bl ade wi t h a suf f i c i ent number of dummy ( used) bl ades or washer s. Cl ean, i mmedi at el y f ol l owi ng t he sawi ng oper at i on, t he j oi nt openi ng usi ng a wat er j et t o r emove saw cut t i ngs and debr i s and adj acent concr et e sur f ace. Pr ot ect adj acent pr evi ousl y c l eaned j oi nt spaces f r om r ecei v i ng wat er and debr i s dur i ng t he c l eani ng oper at i on. The concr et e saw shal l not be used i f i t wi l l wi den t he j oi nt t o a wi dt h gr eat er t han 1 i nch.

a. Joi nt Wi deni ng ( Except Expansi on Joi nt s) : Saw j oi nt s havi ng gr ooves l ess t han 1/ 2 i n wi de and l ess t han 1 i n deep t o a mi ni mum wi dt h of 1/ 2 i n and t o t he mi ni mum dept h of 1 i n or as i ndi cat ed.

3. 3. 2. 2 Ref aci ng of Random Cr acks

Accompl i sh sawi ng of t he cr acks usi ng a power - dr i ven concr et e saw as speci f i ed i n par agr aph EQUI PMENT. Use a saw bl ade 6 i n or l ess i n di amet er t o enabl e t he saw t o f ol l ow t he t r ace of t he cr ack. St i f f en t he bl ade wi t h dummy ( or used) bl ades or washer s. I mmedi at el y f ol l owi ng t he sawi ng oper at i on, c l ean t he cr ack openi ng usi ng a wat er j et t o r emove saw cut t i ngs and debr i s.

3. 3. 3 Fi nal Cl eani ng of Joi nt s

3. 3. 3. 1 Sandbl ast i ng and Wat er bl ast i ng

Fol l owi ng r emoval of exi st i ng seal ant , and sawi ng, and i mmedi at el y bef or e r eseal i ng, c l ean newl y exposed concr et e j oi nt f aces and pavement sur f ace ext endi ng t o a mi mi mum of 1/ 2 i n up t o 2 i n f r om each j oi nt edge by sandbl ast i ng or wat er bl ast i ng unt i l concr et e sur f aces i n t he j oi nt space ar e f r ee of seal ant s, dust , di r t , wat er and ot her f or ei gn mat er i al s t hat pr event bondi ng of new seal ant s t o t he concr et e. Use sand par t i c l es of t he pr oper s i ze and qual i t y f or t he wor k. Per f or m sandbl ast i ng wi t h speci f i ed nozzl es, ai r compr essor , and ot her appur t enant equi pment . Posi t i on nozzl es t o c l ean t he j oi nt f aces. Make at l east t wo passes; one f or each j oi nt f ace. Make as many passes as r equi r ed f or pr oper c l eani ng. I mmedi at el y pr i or t o seal i ng t he j oi nt , bl ow out t he j oi nt spaces wi t h compr essed ai r unt i l compl et el y f r ee of sand, wat er , and dust . I nst al l j oi nt seal ant s t o dr y j oi nt s. Repl ace expansi on j oi nt f i l l er mat er i al damaged i n per f or mi ng t he wor k wi t h new mat er i al s of t he same t ype and di mensi ons as t he exi st i ng mat er i al , or wi t h appr opr i at e bl ocki ng medi a.

3. 3. 4 Bond Br eaker

At t he t i me t he j oi nt s r ecei ve t he f i nal c l eani ng and ar e dr y, i nst al l bond br eaker mat er i al as i ndi cat ed wi t h a st eel wheel or ot her appr oved devi ce.

3. 3. 4. 1 Bl ocki ng Medi a ( Backer Rod) ( Except f or Expansi on Joi nt s)

When t he j oi nt openi ng i s of a gr eat er dept h t han i ndi cat ed f or t he seal ant dept h, pl ug or seal of f t he l ower por t i on of t he j oi nt openi ng usi ng a bl ocki ng medi a/ back- up mat er i al t o pr event t he ent r ance of t he seal ant bel ow t he speci f i ed dept h. Take car e t o ensur e t hat t he bl ocki ng medi a/ backup mat er i al i s pl aced at t he speci f i ed dept h and i s not st r et ched or t wi st ed dur i ng i nst al l at i on.

3. 3. 4. 2 Bond Br eaki ng Tape

Wher e i nser t s or f i l l er mat er i al s cont ai n bi t umen, or t he dept h of t he j oi nt openi ng does not al l ow f or t he use of a backup mat er i al , i nser t a

SECTI ON 32 01 19. 61 Page 10 bond br eaker separ at i ng t ape t o pr event i ncompat i bi l i t y wi t h t he f i l l er mat er i al s and t hr ee- si ded adhesi on of t he seal ant . Bond t he t ape t o t he bot t om of t he j oi nt openi ng t o pr event i t f r om f l oat i ng up i nt o t he new sealant.

3. 3. 5 Rat e of Pr ogr ess of Joi nt Pr epar at i on

Li mi t t he st ages of j oi nt pr epar at i on, i ncl udi ng sandbl ast i ng and wat er bl ast i ng, ai r pr essur e c l eani ng, and pl aci ng of t he back- up mat er i al , t o onl y t hat l i neal f oot age t hat can be seal ed dur i ng t he same day.

3. 3. 6 Di sposal of Debr i s

Sweep pavement sur f ace t o r emove excess j oi nt mat er i al , di r t , wat er , sand, and ot her debr i s by vacuum sweeper s or hand br ooms. Remove t he debr i s i mmedi at el y t o a desi gnat ed ar ea. .

3. 4 PREPARATI ON OF SEALANT

3. 4. 1 Hot - Pour ed Seal ant s

Heat hot - pour ed seal i ng mat er i al s i n accor dance wi t h ASTM D6690 and wi t h saf e heat i ng t emper at ur e r anges r ecommended by t he manuf act ur er . Wi t hdr aw and wast e seal ant t hat has been over heat ed or subj ect ed t o heat i ng f or over 3 hour s or t hat r emai n i n t he appl i cat or at t he end of t he day' s oper at i on. Heat seal ant i n speci f i ed equi pment .

3. 4. 2 Si ngl e- Component , Col d- Appl i ed Seal ant s

I nspect t he ASTM D5893/ D5893M seal ant and cont ai ner s pr i or t o use. Rej ect mat er i al s t hat cont ai n wat er , har d caki ng of any separ at ed const i t uent s, nonr ever si bl e j el l , or mat er i al s t hat ar e ot her wi se unsat i sf act or y. Do not r ej ect seal ant s t hat exhi bi t set t l ement of const i t uent s i n a sof t mass t hat can be r eadi l y and uni f or ml y r emi xed i n t he f i el d wi t h s i mpl e t ool s.

3. 5 I NSTALLATI ON OF SEALANT

3. 5. 1 Ti me of Appl i cat i on

Af t er appr oval of t he t est sect i on, seal j oi nt s i mmedi at el y f ol l owi ng f i nal c l eani ng and pl aci ng of bond br eaker s. Commence seal i ng j oi nt s when wal l s ar e dust f r ee and dr y, and when weat her condi t i ons meet seal ant manuf act ur er ' s i nst r uct i ons. I f t he above condi t i ons cannot be met , or when r ai n i nt er r upt s seal i ng oper at i ons, r ecl ean and per mi t t he j oi nt s t o dr y pr i or t o i nst al l i ng t he seal ant .

3. 5. 2 Seal i ng Joi nt s

Do not i nst al l j oi nt seal ant unt i l j oi nt s t o be seal ed have been i nspect ed and appr oved. I nst al l bond br eaker j ust pr i or t o pour i ng seal ant . Fi l l t he j oi nt s wi t h seal ant f r om bot t om up unt i l j oi nt s ar e uni f or ml y f i l l ed sol i d f r om bot t om t o t op usi ng t he speci f i ed equi pment f or t he t ype of seal ant r equi r ed. Fi l l j oi nt s t o 1/ 8 i n f or ai r f i el d pavement s pl us or mi nus 1/ 16 i n, and 1/ 4 i n f or r oads, st r eet s, and par ki ng l ot s pl us or mi nus 1/ 16 i n, bel ow t op of pavement , and wi t hout f or mat i on of voi ds or ent r apped ai r . For pavement s t hat r ecei ve t r acked vehi c l e t r af f i c , t he seal ant shal l be r ecessed a mi ni mum of 1/ 4 i n bel ow t he pavement sur f ace af t er i t has cur ed or cool ed t o ambi ent t emper at ur e. Do not per mi t gr avi t y met hods or pour i ng pot s t o be used t o i nst al l t he seal ant mat er i al . Except

SECTI ON 32 01 19. 61 Page 11 as ot her wi se per mi t t ed, t ool t he seal ant i mmedi at el y af t er appl i cat i on t o pr ovi de f i r m cont act wi t h t he j oi nt wal l s and t o f or m t he i ndi cat ed seal ant pr of i l e bel ow t he pavement sur f ace. Remove excess seal ant t hat has been i nadver t ent l y spi l l ed on t he pavement sur f ace. Do not per mi t t r af f i c over newl y seal ed pavement unt i l aut hor i zed. When a pr i mer i s r ecommended by t he manuf act ur er , appl y i t evenl y t o t he j oi nt f aces i n accor dance wi t h t he manuf act ur er ' s r ecommendat i ons. Check seal ed j oi nt s f r equent l y t o ensur e t hat newl y i nst al l ed seal ant i s cur ed t o a t ack- f r ee condi t i on wi t hi n t he speci f i ed t i me. Pr ot ect new seal ant f r om r ai n dur i ng cur i ng per i od.

3. 6 I NSPECTI ON/ FI ELD QUALI TY CONTROL

3. 6. 1 Joi nt Cl eani ng

I nspect j oi nt s dur i ng t he c l eani ng pr ocess t o cor r ect i mpr oper equi pment and cl eani ng t echni ques t hat damage t he concr et e pavement i n any manner .

Appr ove cl eaned j oi nt s pr i or t o i nst al l at i on of t he separ at i ng or back- up mat er i al and j oi nt seal ant .

3. 6. 2 Sampl i ng Seal ant

Obt ai n a one gal sampl e of each t ype of seal ant on t he pr oj ect f r om mat er i al used f or each 10, 000 l i near f t or l ess of j oi nt s seal ed. St or e sampl es accor di ng t o seal ant manuf act ur er ' s i nst r uct i ons. Ret ai n sampl es unt i l f i nal accept ance of t he wor k.

3. 6. 3 Seal ant Appl i cat i on Equi pment

I nspect t he appl i cat i on equi pment t o ensur e conf or mance t o t emper at ur e r equi r ement s, pr oper pr opor t i oni ng and mi xi ng ( i f t wo- component seal ant ) and pr oper i nst al l at i on. Suspend oper at i ons i f t her e i s evi dences of bubbl i ng, i mpr oper i nst al l at i on, or f ai l ur e t o cur e or set unt i l causes of t he def i c i enci es ar e det er mi ned and cor r ect ed.

3. 6. 4 Joi nt Seal ant

I nspect t he j oi nt seal ant f or pr oper r at e of cur e and set , bondi ng t o t he j oi nt wal l s, cohesi ve separ at i on wi t hi n t he seal ant , r ever si on t o l i qui d, ent r apped ai r and voi ds. Remove seal ant s exhi bi t i ng t hese def i c i enci es pr i or t o t he f i nal accept ance of t he pr oj ect f r om t he j oi nt , wast ed, and r epl ace at no addi t i onal cost t o t he Gover nment . Obt ai n appr oval f or each j oi nt seal i nst al l at i on.

3. 7 ACCEPTANCE

Rej ect seal er t hat f ai l s t o cur e pr oper l y, or f ai l s t o bond t o j oi nt wal l s, or r ever t s t o t he uncur ed st at e, or f ai l s i n cohesi on, or shows excessi ve ai r voi ds, bl i s t er s, sur f ace def ect s, swel l i ng, or ot her def i c i enci es, or i s not pr oper l y r ecessed wi t hi n i ndi cat ed t ol er ances. Remove r ej ect ed seal er and r ecl ean and r eseal j oi nt s. Per f or m r emoval and r eseal wor k pr ompt l y by and at t he expense of t he Cont r act or .

3. 8 CLEAN-UP

Upon compl et i on of t he pr oj ect , r emove unused mat er i al s f r om t he s i t e and l eave t he pavement i n a c l ean condi t i on.

- - End of Sect i on - -

SECTI ON 32 01 19. 61 Page 12

SECTI ON 32 01 19

FI ELD MOLDED SEALANTS FOR SEALI NG JOI NTS I N RI GI D PAVEMENTS

08/08

PART 1 GENERAL

1. 1 UNI T PRI CES

1. 1. 1 Measurement

Det er mi ne t he quant i t y of each seal i ng i t em t o be pai d f or by act ual measur ement of t he number of l i near f eet of i n- pl ace mat er i al t hat has been appr oved by t he Cont r act i ng Of f i cer .

1. 1. 2 Payment

Payment wi l l be made at t he cont r act uni t bi d pr i ces per l i near f oot f or t he seal i ng i t ems schedul ed. The uni t bi d pr i ces wi l l i nc l ude t he cost of al l l abor , mat er i al s, and t he use of al l equi pment and t ool s r equi r ed t o compl et e t he wor k.

1. 2 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.

ASTM I NTERNATI ONAL ( ASTM)

ASTM C1016 ( 2014) St andar d Test Met hod f or Det er mi nat i on of Wat er Absor pt i on of Seal ant Backi ng ( Joi nt Fi l l er ) Mat er i al

ASTM D789 ( 2015) Det er mi nat i on of Rel at i ve Vi scosi t y and Moi st ur e Cont ent of Pol yami de ( PA)

ASTM D5893/ D5893M ( 2016) St andar d Speci f i cat i on f or Col d Appl i ed, Si ngl e Component , Chemi cal l y Cur i ng Si l i cone Joi nt Seal ant f or Por t l and Cement Concr et e Pavement s

ASTM D6690 ( 2015) St andar d Speci f i cat i on f or Joi nt and Cr ack Seal ant s, Hot Appl i ed, f or Concr et e and Asphal t Pavement s

U. S. ARMY CORPS OF ENGI NEERS ( USACE)

COE CRD- C 525 ( 1989) Cor ps of Engi neer s Test Met hod f or Eval uat i on of Hot - Appl i ed Joi nt Seal ant s f or Bubbl i ng Due t o Heat i ng

U. S. GENERAL SERVI CES ADMI NI STRATI ON ( GSA)

FS SS- S- 200 ( Rev E; Am 1; Not i ce 1) Seal ant , Joi nt , Two- Component , Jet - Bl ast - Resi st ant , Col d- Appl i ed, f or Por t l and Cement Concr et e

SECTI ON 32 01 19 Page 1

Pavement

1. 3 SUBMITTALS

Gover nment appr oval i s r equi r ed f or submi t t al s wi t h a " G" desi gnat i on;

submi t t al s not havi ng a " G" desi gnat i on ar e f or i nf or mat i on onl y. When used, a desi gnat i on f ol l owi ng t he " G" desi gnat i on i dent i f i es t he of f i ce t hat wi l l r evi ew t he submi t t al f or t he Gover nment . Submi t t al s wi t h an " S" ar e f or i ncl usi on i n t he Sust ai nabi l i t y eNot ebook, i n conf or mance t o Sect i on 01 33 29 SUSTAI NABI LI TY REPORTI NG. Submi t t he f ol l owi ng i n accor dance wi t h Sect i on 01 33 00 SUBMI TTAL PROCEDURES:

SD- 03 Pr oduct Dat a

Manuf act ur er ' s Recommendat i ons; G.

Equipment.

SD- 04 Sampl es

Mat er i al s; G.

SD- 06 Test Repor t s

Cer t i f i ed Copi es of t he Test Repor t s; G.

1. 4 QUALI TY ASSURANCE

1. 4. 1 Test Requi r ement s

Test t he j oi nt seal ant and backup or separ at i ng mat er i al f or conf or mance wi t h t he r ef er enced appl i cabl e mat er i al speci f i cat i on. Per f or m t est i ng of t he mat er i al s i n an appr oved i ndependent l abor at or y and submi t cer t i f i ed copi es of t he t est r epor t s f or appr oval 30 days pr i or t o t he use of t he mat er i al s at t he j ob s i t e. Sampl es wi l l be r et ai ned by t he Gover nment f or possi bl e f ut ur e t est i ng shoul d t he mat er i al s appear def ect i ve dur i ng or af t er appl i cat i on. Conf or mance wi t h t he r equi r ement s of t he l abor at or y t est s speci f i ed wi l l not const i t ut e f i nal accept ance of t he mat er i al s.

Fi nal accept ance wi l l be based on t he per f or mance of t he i n- pl ace mat er i al s.

Submi t sampl es of t he mat er i al s ( seal ant , pr i mer i f r equi r ed, and backup mat er i al ) , i n suf f i c i ent quant i t y f or t est i ng and appr oval 30 days pr i or t o t he begi nni ng of wor k. No mat er i al wi l l be al l owed t o be used unt i l i t has been appr oved.

1. 4. 2 Tr i al Joi nt Seal ant I nst al l at i on

Pr i or t o t he c l eani ng and seal i ng of t he j oi nt s f or t he ent i r e pr oj ect , pr epar e a t est sect i on at l east 200 f eet l ong usi ng t he speci f i ed mat er i al s and appr oved equi pment , so as t o demonst r at e t he pr oposed j oi nt pr epar at i on and seal i ng of al l t ypes of j oi nt s i n t he pr oj ect . Fol l owi ng t he compl et i on of t he t est sect i on and bef or e any ot her j oi nt i s seal ed, i nspect t he t est sect i on t o det er mi ne t hat t he mat er i al s and i nst al l at i on meet t he r equi r ement s speci f i ed. I f i t i s det er mi ned t hat t he mat er i al s or i nst al l at i on do not meet t he r equi r ement s, r emove t he mat er i al s, and r ecl ean and r eseal t he j oi nt s at no cost t o t he Gover nment . When t he t est sect i on meet s t he r equi r ement s, i t may be i ncor por at ed i nt o t he per manent wor k and pai d f or at t he cont r act uni t pr i ce per l i near f oot f or seal i ng i t ems schedul ed. Pr epar e and seal al l ot her j oi nt s i n t he manner appr oved f or seal i ng t he t est sect i on.

SECTI ON 32 01 19 Page 2

1. 5 DELI VERY, STORAGE, AND HANDLI NG

I nspect mat er i al s del i ver ed t o t he j ob s i t e f or def ect s, unl oad, and st or e t hem wi t h a mi ni mum of handl i ng t o avoi d damage. Pr ovi de st or age f aci l i t i es at t he j ob s i t e f or mai nt ai ni ng mat er i al s at t he t emper at ur es and condi t i ons r ecommended by t he manuf act ur er .

1. 6 ENVI RONMENTAL REQUI REMENTS

The ambi ent ai r t emper at ur e and t he pavement t emper at ur e wi t hi n t he j oi nt wal l shal l be a mi ni mum of 50 degr ees F and r i s i ng at t he t i me of appl i cat i on of t he mat er i al s. Do not appl y seal ant i f moi st ur e i s obser ved i n t he j oi nt .

PART 2 PRODUCTS

2. 1 SEALANTS

Mat er i al s f or seal i ng cr acks i n t he var i ous paved ar eas i ndi cat ed on t he dr awi ngs shal l be as f ol l ows:

Area Seal i ng Mat er i al

Ar eas t hat wi l l not r ecei ve f uel spi l l age, engi ne bl ast , or heat , such as r oadways, par ki ng ar eas, cur b, and gut t er

ASTM D6690, Type I I and COE CRD- C 525

Ar eas t hat wi l l not r ecei ve f uel spi l l age, engi ne bl ast , or heat , such as r oadways, par ki ng ar eas, cur b, and gut t er

ASTM D6690, Type I I I and COE CRD- C 525

Ar eas t hat wi l l r ecei ve f uel spi l l age, heat , or engi ne bl ast

FS SS- S- 200 Type M and COE CRD- C 525

Ar eas t hat wi l l r ecei ve f uel spi l l age, heat , or engi ne bl ast

FS SS- S- 200 Type H and COE CRD- C 525

Ar eas t hat wi l l not r ecei ve f uel spi l l age, engi ne bl ast , or heat , such as r oadways, par ki ng ar eas, cur b, and gut t er

ASTM D5893/ D5893M

2. 2 PRIMERS

When pr i mer s ar e r ecommended by t he manuf act ur er of t he seal ant , use t hem i n accor dance wi t h t he r ecommendat i on of t he manuf act ur er .

2. 3 BACKUP MATERI ALS

Pr ovi de backup mat er i al t hat i s a compr essi bl e, nonshr i nki ng, nonst ai ni ng, nonabsor bi ng mat er i al , nonr eact i ve wi t h t he j oi nt seal ant . The mat er i al shal l have a mel t i ng poi nt at l east 5 degr ees F gr eat er t han t he pour i ng t emper at ur e of t he seal ant bei ng used when t est ed i n accor dance wi t h ASTM D789. The mat er i al shal l have a wat er absor pt i on of not mor e t han 5

SECTI ON 32 01 19 Page 3 per cent of t he sampl e wei ght when t est ed i n accor dance wi t h ASTM C1016.

Use backup mat er i al t hat i s 25 pl us or mi nus 5 per cent l ar ger i n di amet er t han t he nomi nal wi dt h of t he cr ack.

2. 4 BOND BREAKI NG TAPES

Pr ovi de a bond br eaki ng t ape or separ at i ng mat er i al t hat i s a f l exi bl e, nonshr i nkabl e, nonabsor bi ng, nonst ai ni ng, and nonr eact i ng adhesi ve- backed t ape. The mat er i al shal l have a mel t i ng poi nt at l east 5 degr ees F gr eat er t han t he pour i ng t emper at ur e of t he seal ant bei ng used when t est ed i n accor dance wi t h ASTM D789. The bond br eaker t ape shal l be appr oxi mat el y 1/ 8 i nch wi der t han t he nomi nal wi dt h of t he j oi nt and shal l not bond t o t he j oi nt seal ant .

PART 3 EXECUTI ON

3. 1 EXECUTI NG EQUI PMENT

Machi nes, t ool s, and equi pment used i n t he per f or mance of t he wor k r equi r ed by t hi s sect i on shal l be appr oved bef or e t he wor k i s st ar t ed mai nt ai ned i n sat i sf act or y condi t i on at al l t i mes. Submi t a l i s t of pr oposed equi pment t o be used i n per f or mance of const r uct i on wor k i nc l udi ng descr i pt i ve dat a, 30 days pr i or t o use on t he pr oj ect .

3. 1. 1 Joi nt Cl eani ng Equi pment

3. 1. 1. 1 Tr act or - Mount ed Rout i ng Tool

Pr ovi de a r out i ng t ool , used f or r emovi ng ol d seal ant f r om t he j oi nt s, of such shape and di mensi ons and so mount ed on t he t r act or t hat i t wi l l not damage t he s i des of t he j oi nt s. The t ool shal l be desi gned so t hat i t can be adj ust ed t o r emove t he ol d mat er i al t o var yi ng dept hs as r equi r ed. The use of V- shaped t ool s or r ot ar y i mpact r out i ng devi ces wi l l not be per mi t t ed. Hand- oper at ed spi ndl e r out i ng devi ces may be used t o c l ean and enl ar ge r andom cr acks.

3. 1. 1. 2 Concr et e Saw

Pr ovi de a sel f - pr opel l ed power saw, wi t h wat er - cool ed di amond or abr asi ve saw bl ades, f or cut t i ng j oi nt s t o t he dept hs and wi dt hs speci f i ed or f or r ef aci ng j oi nt s or c l eani ng sawed j oi nt s wher e sandbl ast i ng does not pr ovi de a c l ean j oi nt .

3. 1. 1. 3 Sandbl ast i ng Equi pment

I ncl ude wi t h t he sandbl ast i ng equi pment an ai r compr essor , hose, and l ong- wear i ng vent ur i - t ype nozzl e of pr oper s i ze, shape and openi ng. The maxi mum nozzl e openi ng shoul d not exceed 1/ 4 i nch. The ai r compr essor shal l be por t abl e and capabl e of f ur ni shi ng not l ess t han 150 cf m and mai nt ai ni ng a l i ne pr essur e of not l ess t han 90 psi at t he nozzl e whi l e i n use. Demonst r at e compr essor capabi l i t y , under j ob condi t i ons, bef or e appr oval . The compr essor shal l be equi pped wi t h t r aps t hat wi l l mai nt ai n t he compr essed ai r f r ee of oi l and wat er . The nozzl e shal l have an adj ust abl e gui de t hat wi l l hol d t he nozzl e al i gned wi t h t he j oi nt appr oxi mat el y 1 i nch above t he pavement sur f ace. Adj ust t he hei ght , angl e of i ncl i nat i on and t he s i ze of t he nozzl e as necessar y t o secur e sat i sf act or y r esul t s.

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3. 1. 1. 4 Wat er bl ast i ng Equi pment

I ncl ude wi t h t he wat er bl ast i ng equi pment a t r ai l er - mount ed wat er t ank, pumps, hi gh- pr essur e hose, wand wi t h saf et y r el ease cut of f cont r ol , nozzl e, and auxi l i ar y wat er r esuppl y equi pment . Pr ovi de wat er t ank and auxi l i ar y r esuppl y equi pment of suf f i c i ent capaci t y t o per mi t cont i nuous oper at i ons.

The nozzl e shal l have an adj ust abl e gui de t hat wi l l hol d t he nozzl e al i gned wi t h t he j oi nt appr oxi mat el y 1 i nch above t he pavement sur f ace. Adj ust t he hei ght , angl e of i ncl i nat i on and t he s i ze of t he nozzl e as necessar y t o obt ai n sat i sf act or y r esul t s. A pr essur e gauge mount ed at t he pump shal l show at al l t i mes t he pr essur e i n psi at whi ch t he equi pment i s oper at i ng.

3. 1. 1. 5 Hand Tool s

Hand t ool s may be used, when appr oved, f or r emovi ng def ect i ve seal ant f r om a cr ack and r epai r i ng or c l eani ng t he cr ack f aces.

3. 1. 2 Seal i ng Equi pment

3. 1. 2. 1 Hot - Pour ed Seal i ng Equi pment

The uni t appl i cat or s used f or heat i ng and i nst al l i ng ASTM D6690 j oi nt seal ant mat er i al s shal l be mobi l e and shal l be equi pped wi t h a doubl e- boi l er , agi t at or - t ype ket t l e wi t h an oi l medi um i n t he out er space f or heat t r ansf er ; a di r ect - connect ed pr essur e- t ype ext r udi ng devi ce wi t h a nozzl e shaped f or i nser t i ng i n t he j oi nt t o be f i l l ed; posi t i ve t emper at ur e devi ces f or cont r ol l i ng t he t emper at ur e of t he t r ansf er oi l and seal ant ;

and a r ecor di ng t ype t her momet er f or i ndi cat i ng t he t emper at ur e of t he seal ant . The appl i cat or uni t shal l be desi gned so t hat t he seal ant wi l l c i r cul at e t hr ough t he del i ver y hose and r et ur n t o t he i nner ket t l e when not i n use.

3. 1. 2. 2 Two- Component , Col d- Appl i ed, Machi ne Mi x Seal i ng Equi pment

Pr ovi de equi pment used f or pr opor t i oni ng, mi xi ng, and i nst al l i ng FS SS- S- 200 Type M j oi nt seal ant s desi gned t o del i ver t wo semi f l ui d component s t hr ough hoses t o a por t abl e mi xer at a pr eset r at i o of 1 t o 1 by vol ume usi ng pumps wi t h an accur acy of pl us or mi nus 5 per cent f or t he quant i t y of each component . The r eser voi r f or each component shal l be equi pped wi t h mechani cal agi t at i on devi ces t hat wi l l mai nt ai n t he component s i n a uni f or m condi t i on wi t hout ent r appi ng ai r . I ncor por at e pr ovi s i ons t o per mi t t her most at i cal l y cont r ol l ed i ndi r ect heat i ng of t he component s, when r equi r ed. However , i mmedi at el y pr i or t o pr opor t i oni ng and mi xi ng, t he t emper at ur e of ei t her component shal l not exceed 90 degr ees F. Pr ovi de scr eens near t he t op of each r eser voi r t o r emove any f or ei gn par t i c l es or par t i al l y pol ymer i zed mat er i al t hat coul d c l og f l ui d l i nes or ot her wi se cause mi spr opor t i oni ng or i mpr oper mi xi ng of t he t wo component s. Pr ovi de equi pment capabl e of t hor oughl y mi xi ng t he t wo component s t hr ough a r ange of appl i cat i on r at es of 10 t o 60 gal l ons per hour and t hr ough a r ange of appl i cat i on pr essur es f r om 50 t o 1500 psi as r equi r ed by mat er i al , c l i mat i c, or oper at i ng condi t i ons. Desi gn t he mi xer f or t he easy r emoval of t he suppl y l i nes f or c l eani ng and pr opor t i oni ng of t he component s. The mi xi ng head shal l accommodat e nozzl es of di f f er ent t ypes and si zes as may be r equi r ed by var i ous oper at i ons. The di mensi ons of t he nozzl e shal l be such t hat t he nozzl e t i p wi l l ext end i nt o t he j oi nt t o al l ow seal i ng f r om t he bot t om of t he j oi nt t o t he t op. Mai nt ai n t he i ni t i al l y appr oved equi pment i n good wor ki ng condi t i on, ser vi ced i n accor dance wi t h t he suppl i er ' s i nst r uct i ons, and unal t er ed i n any way wi t hout obt ai ni ng pr i or approval.

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3. 1. 2. 3 Two- Component , Col d- Appl i ed, Hand- Mi x Seal i ng Equi pment

Mi xi ng equi pment f or FS SS- S- 200 Type H seal ant s shal l consi st of a s l ow- speed el ect r i c dr i l l or ai r - dr i ven mi xer wi t h a st i r r er i n accor dance wi t h t he manuf act ur er ' s r ecommendat i ons.